HD64F2636 [ETC]

F-ZTAT Reprogramming by On-Chip CAN Application Notes/Q&A ; F- ZTAT重编程片上CAN应用笔记/ Q ＆A\n


型号：	HD64F2636
厂家：	ETC
描述：	F-ZTAT Reprogramming by On-Chip CAN Application Notes/Q&A F- ZTAT重编程片上CAN应用笔记/ Q ＆A\n
文件：	总87页 (文件大小：760K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

To all our customers

Regarding the change of names mentioned in the document, such as Hitachi

Electric and Hitachi XX, to Renesas Technology Corp.

The semiconductor operations of Mitsubishi Electric and Hitachi were transferred to Renesas

Technology Corporation on April 1st 2003. These operations include microcomputer, logic, analog

and discrete devices, and memory chips other than DRAMs (flash memory, SRAMs etc.)

Accordingly, although Hitachi, Hitachi, Ltd., Hitachi Semiconductors, and other Hitachi brand

names are mentioned in the document, these names have in fact all been changed to Renesas

Technology Corp. Thank you for your understanding. Except for our corporate trademark, logo and

corporate statement, no changes whatsoever have been made to the contents of the document, and

these changes do not constitute any alteration to the contents of the document itself.

Renesas Technology Home Page: http://www.renesas.com

Renesas Technology Corp.

Customer Support Dept.

April 1, 2003

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F-ZTAT Reprogramming

by On-Chip CAN

Application Note

ADE-502-084

Rev. 1.0

03/14/03

Hitachi, Ltd.

Cautions

1. Hitachi neither warrants nor grants licenses of any rights of Hitachi’s or any third party’s

patent, copyright, trademark, or other intellectual property rights for information contained in

this document. Hitachi bears no responsibility for problems that may arise with third party’s

rights, including intellectual property rights, in connection with use of the information

contained in this document.

2. Products and product specifications may be subject to change without notice. Confirm that you

have received the latest product standards or specifications before final design, purchase or

use.

3. Hitachi makes every attempt to ensure that its products are of high quality and reliability.

However, contact Hitachi’s sales office before using the product in an application that

demands especially high quality and reliability or where its failure or malfunction may directly

threaten human life or cause risk of bodily injury, such as aerospace, aeronautics, nuclear

power, combustion control, transportation, traffic, safety equipment or medical equipment for

life support.

4. Design your application so that the product is used within the ranges guaranteed by Hitachi

particularly for maximum rating, operating supply voltage range, heat radiation characteristics,

installation conditions and other characteristics. Hitachi bears no responsibility for failure or

damage when used beyond the guaranteed ranges. Even within the guaranteed ranges,

consider normally foreseeable failure rates or failure modes in semiconductor devices and

employ systemic measures such as fail-safes, so that the equipment incorporating Hitachi

product does not cause bodily injury, fire or other consequential damage due to operation of

the Hitachi product.

5. This product is not designed to be radiation resistant.

6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document

without written approval from Hitachi.

7. Contact Hitachi’s sales office for any questions regarding this document or Hitachi

semiconductor products.

Rev. 1.0, 03/03, page ii of vi

General Precautions on Handling of Product

1. Treatment of NC Pins

Note: Do not connect anything to the NC pins.

The NC (not connected) pins are either not connected to any of the internal circuitry or are

used as test pins or to reduce noise. If something is connected to the NC pins, the

operation of the LSI is not guaranteed.

2. Treatment of Unused Input Pins

Note: Fix all unused input pins to high or low level.

Generally, the input pins of CMOS products are high-impedance input pins. If unused pins

are in their open states, intermediate levels are induced by noise in the vicinity, a pass-

through current flows internally, and a malfunction may occur.

3. Processing before Initialization

Note: When power is first supplied, the product’s state is undefined.

The states of internal circuits are undefined until full power is supplied throughout the

chip and a low level is input on the reset pin. During the period where the states are

undefined, the register settings and the output state of each pin are also undefined. Design

your system so that it does not malfunction because of processing while it is in this

undefined state. For those products which have a reset function, reset the LSI immediately

after the power supply has been turned on.

4. Prohibition of Access to Undefined or Reserved Addresses

Note: Access to undefined or reserved addresses is prohibited.

The undefined or reserved addresses may be used to expand functions, or test registers

may have been be allocated to these addresses. Do not access these registers; the system’s

operation is not guaranteed if they are accessed.

Rev. 1.0, 03/03, page iii of vi

Preface

This application note describes how to reprogram the flash memory using user program mode. The

program data can be provided by using the on-chip HCAN (Hitachi Controller Area Network) of

the H8S Series.

For details on the flash memory and HCAN, refer to the following sections in the H8S/2612F

Hardware Manual.

•

ROM

HCAN

Although operations of programs and circuit examples, etc. described in this application note are

confirmed, be sure to confirm them again before actual use. (Note that examples of programs in

this application note are for the on-chip HCAN of the H8S/2612F.)

Rev. 1.0, 03/03, page iv of vi

Contents

Section 1 Overview........................................................................................... 1

1.1 List of F-ZTAT™* Microcomputers (H8S Series) Including HCAN Unit ......................1

1.2 Overview of User Program Mode.....................................................................................2

1.3 Overview of Reprogramming Method in User Program Mode.........................................3

Section 2 Overview of Sample System............................................................. 5

2.1 Hardware List....................................................................................................................5

2.2 Software List.....................................................................................................................6

2.3 Items to be Customized for Sample Program....................................................................6

2.4 Installing Programs to be Used in Application Note.........................................................8

2.5 CAN Bus Interface (Example)..........................................................................................9

Section 3 Procedure for Reprogramming Flash Memory

in User Program Mode...................................................................... 11

3.1 Mapping Flash Memory for Application (Sample) Program ............................................13

3.2 Programming Programs to Target Board and SCI-HCAN Communication

Conversion Board .............................................................................................................13

3.3 CAN Communication Settings in Application Note .........................................................14

3.4 Flash Memory Reprogramming Sequence in User Program Mode ..................................15

Section 4 Reprogramming Flash Memory in User Program Mode .................. 17

4.1 Initial State........................................................................................................................17

4.2 Transferring Program/Erase Control Program ..................................................................18

4.3 Erasing Blocks of Flash Memory......................................................................................19

4.4 Programming New Application Program..........................................................................20

Section 5 Details of Software ........................................................................... 21

5.1 F-ZTAT Microcomputer H-CAN Program.......................................................................21

5.2 SCI-HCAN Communication Conversion Program ...........................................................21

5.3 Application (Sample) Program .........................................................................................22

Section 6 Example of Creating Application (Sample) Program....................... 23

6.1 Functions and Variables....................................................................................................23

6.2 Example of Changing CAN Communication Settings......................................................24

6.3 Example of Changing Receive and Transmit Mailbox Numbers for

CAN Communications......................................................................................................26

6.4 Application (Sample) Program Flowchart ........................................................................30

Rev. 1.0, 03/03, page v of vi

Section 7 Example of Creating Program/Erase Control Program.....................31

7.1 Overview...........................................................................................................................31

7.2 Functions, Variables, and Constants.................................................................................35

7.3 Example of Changing Receive and Transmit Mailbox Numbers for

CAN Communications......................................................................................................38

7.4 Program/Erase Program Flowchart...................................................................................42

Section 8 Functions and Operations of On-Board Programming Tool and

SCI-HCAN Communication Conversion Program ...........................45

8.1 Installing On-Board Programming Tool ...........................................................................45

8.2 First Programming of Application (Sample) Program to Target Board............................50

8.3 Programming SCI-HCAN Communication Conversion Program to SCI-HCAN

Communication Conversion Board...................................................................................56

8.4 Reprogramming Flash Memory in User Program Mode...................................................59

8.5 Error Messages for FlashCAN.exe (Additional Messages for HCAN).............................73

Section 9 Supplementary Description ...............................................................75

9.1 Required Items for Reprogramming Flash Memory in User Program Mode....................75

9.2 Differences between User Program Mode and Boot Mode ..............................................76

9.3 How to Measure Application Time for E and P Bits ........................................................77

Rev. 1.0, 03/03, page vi of vi

Section 1 Overview

This application note describes how to reprogram the H8S/2612F on-chip flash memory using user

program mode. The program data can be provided by using the on-chip HCAN of the H8S/2612F.

As a sample system, this application note describes how to reprogram the flash memory in the

system configuration shown in figure 1.1. Also this application note describes how to customize

the programs shown in the application note according to the operating frequency and the CAN bus

specifications for the user system.

CAN bus

SCI

Target board

SCI-HCAN

Host (PC)

communication

conversion

H8S/2612F

Reprogram data

Reprograms the contents of

the on-chip flash memory

using user program mode.

Figure 1.1 Sample System Configuration

1.1

List of F-ZTAT™* Microcomputers (H8S Series) Including HCAN

Unit

This application note applies to the following devices:

•

H8S/2612F

H8S/2623F

H8S/2626F

H8S/2636F

When using this application note as a reference for using microcomputers other than the

H8S/2612F, note the differences in:

•

Addresses, bit positions, and functionality of the on-chip registers

Control method for erasing and programming the flash memory (such as application time for E

and P bits)

Note: * F-ZTAT is a trademark of Hitachi, Ltd.

Rev. 1.0, 03/03, page 1 of 78

1.2

Overview of User Program Mode

User program mode enables on-board reprogramming of the flash memory. This mode allows the

user to reprogram the contents of the on-chip flash memory with the F-ZTAT microcomputer

mounted on the user’s board.

Two modes are available for on-board reprogramming of the flash memory: boot mode and user

program mode. In boot mode, a boot program included in the F-ZTAT microcomputer is executed

to implement programming to the flash memory. In user program mode, an application program in

the flash memory (on-chip ROM) is executed. For this reason, user program mode requires the

reprogram processing to be installed in the application program in advance.

Reset state

MD1 = 1, MD2 = 1, FWE = 0

MD1 = 1, MD2 = 0, FWE = 1

MD1 = 1, MD2 = 1, FWE = 1

FWE = 1

Boot mode

User program mode

User mode

FWE = 0

On-board program mode

User mode with on-chip ROM enabled

Figure 1.2 Transition of User Program Mode

In boot mode, the on-chip boot program automatically erases the entire flash memory before new

data is programmed. For this reason, a complete reprogramming of the application program is

required even if the user only wants to reprogram it partially.

User program mode allows the user to erase and program any data according to the user system,

allowing a partial reprogram for individual erased blocks.

Note: The word “program” of user program mode means “programming to” the flash memory.

Rev. 1.0, 03/03, page 2 of 78

1.3

Overview of Reprogramming Method in User Program Mode

Since the on-chip ROM is enabled in user program mode, the application program including the

reprogram processing must be programmed to the on-chip flash memory in advance. Use boot

mode or ROM programmer mode to perform this initial programming. If the reprogramming in

user program mode is disabled due to accidental erasure of the application program including the

reprogram processing, the user can forcibly program the data in boot mode.

The on-chip boot program

in the F-ZTAT microcomputer

automatically erases all the data.

Initial programming in boot mode

(Complete erasure)

The reprogram processing must

be included in advance in user

program mode.*

Application

programming

Any block can be erased.

Reprogramming in

user program mode

Application

(Erasing blocks)

Re-updating of

application program

Data can be programmed for the

erased block.

Application

Partial reprogramming

Note: * Contents of the reprogram processing that must be installed into the application

The processing that detects the transition conditions for reprogram processing, and the processing that transfers

the program/erase control program to RAM and then jumps to RAM must be installed into the application in advance.

Figure 1.3 Reprogramming Method in User Program Mode (Overview)

Rev. 1.0, 03/03, page 3 of 78

Rev. 1.0, 03/03, page 4 of 78

Section 2 Overview of Sample System

2.1

Hardware List

The following lists the components which are required for executing the sample program

described in this application note.

Table 2.1 Hardware List

No. Hardware Name Specifications

Remarks

Host (PC)

Executes FlashCAN.exe. Must

have the serial interface.

OS for DOS/V personal computers:

Windows®*¹98(S), Windows® 2000,

Windows® NT4.0, Windows® Me, or

Windows® XP

SCI-CAN

communication

Converts serial communications

from the host to CAN

LIN-CAN Starter Kit (H8S/2612F)

manufactured by Hokuto Denshi co.,

conversion board communications to communicate ltd.

with the target board. It also

converts CAN communications

from the target board to serial

communications.

Target board

Contains on-board H8S/2612F

LIN-CAN Starter Kit (H8S/2612F)

that has the on-chip flash memory manufactured by Hokuto Denshi co.,

to which the data will be

programmed.

ltd. requires a switch for the FWE pin

to support user program mode.*²

Serial cable

Connects the 9-pin host to the J3 Attached to the LIN-CAN Starter Kit

connector on the SCI-CAN

(H8S/2612F) manufactured by Hokuto

communication conversion board Denshi co., ltd.*²

CAN bus cable

Connects the J7 connector on the Attached to the LIN-CAN Starter Kit

3-pin SCI-CAN communication

conversion board to the J7

connector on the target board

(H8S/2612F) manufactured by Hokuto

Denshi co., ltd.

Notes: 1. Windows® is a registered trademark of Microsoft Co., in the U.S. and other countries.

2. A transition to user program mode requires turning on and off the FWE pin.

The LIN-CAN Starter Kit (H8S/2612F) manufactured by Hokuto Denshi co., ltd. uses the

slide switch (SW11) on the board to turn on and off the FWE pin.

For actual operations on changing modes for the LIN-CAN Starter Kit (H8S/2612F), see

the attached manual.

Rev. 1.0, 03/03, page 5 of 78

2.2

Software List

Table 2.2 Software List

No. File Name Program Name

Remarks

FlashCAN.exe

F-ZTAT Microcomputer This program runs in the host (PC). It is an

H-CAN Program

evaluation version for this application note.

SCI2612F3.sub

Program control

program (SCI

communications)

Use this program for the initial programming in

boot mode. When executing this program, it

should be sent from FlashCAN.exe to the boot

program in the target board via serial

transmission, and then store it in RAM.

HCAN2612F3.sub*¹Program/erase control Use this program for the reprogramming in user

program (HCAN

communications)

program mode. When executing this program, it

should be sent from FlashCAN.exe to the

processing included in the application on the

target board via serial transmission, and then

store it in RAM.

SCItoCAN.mot

SCI-CAN

communication

conversion program

This program runs in the SCI-CAN

communication conversion board.

Sample1.mot*¹

Application (sample)

program

This program runs in the target board. This

program includes the reprogram processing in

user program mode.

Note:

To use the sample program provided in this application note according to the user

system, you can customize the items listed below. Change the source files, and then

compile and assemble them.

You do not need to customize anything if you use the sample system without any

changes.

2.3

Items to be Customized for Sample Program

No. Items

Defaults

Sections to Change

CAN communication See the next page.

settings

•

Sample1.mot

InitHCAN() function in the HCAN_up.c file

Mailbox numbers for Receive: MB4

•

The following functions in the

Sample1.motHCAN_up.src file:

transmission and

Transmit: MB5

reception used by the

on-chip HCAN

InitHCAN(), PowerON_Reset(),

CAN_MB4_rcv1byte(), and

CAN_MB5_trs1byte()

•

HCAN2612f3.mot

RCV1BYTE() and TRS1BYTE() subroutines

in the HCAN2612f3.src file

Rev. 1.0, 03/03, page 6 of 78

To compile or assemble the program, use the batch file or Hew project of the DOS prompt. The

attached batch file and Hew project found in the samples show an example of using the compiler

package Ver. 5.0.02.

Change the following files according to the version of your compiler package.

•

To change the HCAN2612f3.mot file, use the file HCAN2612f3.bat or Hew2.hws in the

HCAN2612f3 folder.

To change the Sample1.mot file, use the file Sample1.bat or Hew2.hws in the Sample1 folder.

Rev. 1.0, 03/03, page 7 of 78

2.4

Installing Programs to be Used in Application Note

Execute setup.exe to install the programs. The following shows the directory configuration after

installation.

[Directory Configuration after Standard Installation]

[c:\FlashCAN]

FlashCAN.exe

SCI2612F3.sub

SCI2612F3.inf

HCAN2612F3.sub

HCAN2612F3.inf

[HCAN2612F3]

; Program/erase control program

HCAN2612F3.src . . . (*1) Program that can be customized

HCAN2612F3.bat

[Hew2]

[Debug]

Debug.hdp

Hew2.hws

Hew2.tws

Hew2.hbp

[Release]

Release.hdp

[SimDebug_H8S-2600A]

Hew2.hwp

HCAN2612f3.abs

HCAN2612f3.h8a

HCAN2612f3.hlk

HCAN2612f3.obj

Hew2.map

Hew2.pgs

Hew2.tps

DefaultSession.hsf

SimSessionH8S-2600A.hsf

[Sample1]

; Application (sample) program

Sample1.mot . . . (*1) Program that can be customized

HCAN_up.c

Sample1.c

io_2612.h

Sample1.bat

[Hew2]

[Debug]

Debug.hdp

Hew2.hws

Hew2.tws

Hew2.hbp

Data_00.mot

Data_FF.mot

[Release]

Release.hdp

Sample1.abs

HCAN_up.h8c

Sample1.h8c

Sample1.hlk

HCAN_up.obj

Sample1.obj

Hew2.map

[SimDebug_H8S-2600A]

Hew2.hwp

Hew2.pgs

Hew2.tps

DefaultSession.hsf

SimSessionH8S-2600A.hsf

[SCItoCAN]

; SCI-CAN communication conversion program

SCItoCAN.mot

You can start up the program tool (FlashCAN.exe) from the Windows® Start menu as follows:

From the Start menu, select Programs, FlashCAN, and then FlashCAN.

Rev. 1.0, 03/03, page 8 of 78

2.5

CAN Bus Interface (Example)

A bus transceiver IC is necessary to connect this chip to a CAN bus. A Philips PCA82C250

transceiver IC is recommended. Any other product must be compatible with the PCA82C250.

Figure 2.1 shows a sample connection diagram.

124

This LSI

Vcc

PCA82C250

RS Vcc

CAN bus

HRxD

HTxD

RxD CANH

TxD CANL

Vref GND

124

Note: NC: No Connection

Figure 2.1 High-Speed Interface Using PCA82C250

Table 2.3 LED Pin Assignment

Microcomputer Pin

LED

PD0

PD1

PD2

PD3

PD4

PD5

PD6

PD7

The LED port is turned on by the bit of 0.

Rev. 1.0, 03/03, page 9 of 78

Rev. 1.0, 03/03, page 10 of 78

Section 3 Procedure for Reprogramming Flash Memory

in User Program Mode

This application note uses the following procedure for reprogramming the flash memory:

1. Use the reception of a command via HCAN communication as a trigger to start the

reprogramming of the flash memory.

2. Transfer the program/erase control program from outside to RAM via HCAN communication.

3. Switch the FWE pin on the target board (set FWE = 1 to enter user program mode).

4. Transfer the program data from outside via HCAN communication.

The hosts used in steps 1, 2, and 4 above are the host (PC) and SCI-HCAN communication

conversion board.

Rev. 1.0, 03/03, page 11 of 78

Target-board side

Processing on host (PC) and SCI-HCAN

communication conversion board

Restart in user mode

Initialize on-chip HCAN

Execute application

(sample controls lighting of LEDs)

[1]

Issue command (0x48) via HCAN

communication

Is command (0x48) received?

Yes

[2]

Transfer program/erase control

program via HCAN communication

Transfer program/erase control

program to RAM

Branch to program/erase control

program on RAM

User program mode

(execute program on RAM)

[3]

[4]

→

FWE pin

Execute program/erase control

program on RAM

Provide erase blocks and program

data via HCAN communication

(reprogramming flash memory)

[3]

→

FWE pin

End

Note: The shaded section in the flowchart indicates the processing that must be installed into the application in advance.

Rev. 1.0, 03/03, page 12 of 78

3.1

Mapping Flash Memory for Application (Sample) Program

H'000000

EB0 (1 kbyte)

Vector table

H'0003FF

H'000400

EB1 (1 kbyte)

Unused

H'0007FF

H'000800

EB2 (1 kbyte)

Main part of application

H'000BFF

H'000C00

Main part of program: Sample1.mot

(programmed in boot mode)

EB3 (1 kbyte)

Sample program

H'000BFF

H'001000

EB4 (28 kbytes)

Parameter data

Parameter data: Data_FF.mot and Data_00.mot

(for reprogramming in user program mode)

This application note covers the reprogramming

of these blocks.

H'007FFF

H'008000

EB5

Unused

EB9

H'01FFFF

Note: Download Sample1.mot into the flash memory on the target board in boot mode beforehand.

This application note describes the reprogramming of Data_FF.mot or Data_00.mot into the flash memory

in user program mode. Since the application turns on or blinks the LEDs according to this data, you can

visually check that the data has been reprogrammed.

3.2

Programming Programs to Target Board and SCI-HCAN

Communication Conversion Board

Before reprogramming the flash memory in user program mode, you need to program the

programs in boot mode. Use ‘Standard Mode’ of FlashCAN.exe for programming in boot mode.

Program the following programs in boot mode:

•

Program Sample1.mot into the target board.

Program SCItoCAN.mot into the SCI-HCAN communication conversion board.

For details on how to use FlashCAN.exe, see section 8.

Rev. 1.0, 03/03, page 13 of 78

3.3

CAN Communication Settings in Application Note

The application note requires the following settings for CAN communication:

CAN baud rate: 1000 kbps

(CPU operating frequency = 20 MHz and BCR setting = H′0034.)

•

BRP setting: 0 (1 time quantum/ 2 system clocks)

TSEG1 setting: 4 (5 time quanta)

TSEG2 setting: 3 (4 time quanta)

This results in: 1 Mbps = 20 MHz/{2 × ( 0 + 1) × (3 + 4 + 3 )}

↑

BRP

↑

TSEG1 TSEG2

Data frame ID (standard format: 11 bits)

•

Receive data ID on the communication conversion board: H′03F9 (11-bit display:

01111111001)

Receive data ID on the target board: H′0602 (11-bit display: 11000000010)

Rev. 1.0, 03/03, page 14 of 78

3.4

Flash Memory Reprogramming Sequence in User Program Mode

Host (PC)

SCI-CAN

Target board

communication

conversion board

Set CAN

communication

Initialize SCI

Initialize CAN

communication

Check boot button

Press start button

Blink all LEDs

H command (0x48),

transmit ID, receive ID,

SJW, BRP, TMSEG2, and TMSEG1

Initialize CAN

communication

H command (0x48)

(start reprogram processing)

Enter flash memory

reprogram processing

ACK

Program/erase control program

Echoback

Program/erase control program

Echoback

Store program in RAM

and jump to RAM

Target board's clock

Wait loop calculation

ACK

The shaded section indicates the operation by the user.

Note: * The program/erase control program uses the software loop count to control the application time, etc. for bits E and P.

Increment or decrement the loop count according to the operating frequency of the F-ZTAT microcomputer.

Rev. 1.0, 03/03, page 15 of 78

Host (PC)

SCI-CAN

Target board

communication

conversion board

Set FWE pin to 1

Check write button

Press start button

W command (0x57),

erase count, and erase address

W command (0x57),

erase count, and erase address

Erase flash block

Erase response

Program data

Flash program

Program response

Program is completed

Clear FWE pin to 0

Reset

Blink LEDs

Note: * Before pressing the start button for programming, set the FWE pin to 1 to enter user program mode.

Remarks:

The settings of SCI communication between the host (PC) and SCI-CAN communication

conversion board should be as follows:

•

Mode: Asynchronous communication method

Data format: 8-bit data, without parity, one stop bit

Bit rate: 57.600 bit/sec

Rev. 1.0, 03/03, page 16 of 78

Section 4 Reprogramming Flash Memory in

User Program Mode

4.1

Initial State

(Host)

Program/erase control program

Parameter data Data_00.mot (new data)

H8S/2612F (MDO = 1, MD1 = 1, MD2 = 1, FWE = 0)

CAN

(Flash memory)

(RAM)

Application program

Sample1.mot

Parameter data: Erased

(All data is set to H'FF)

Description:

1. Restart the H8S/2612F in user mode (MD0 = 1, MD1 = 1, MD2 = 1, and FWE = 0).

2. The application program initializes the HCAN unit to accept the conditions for entering the

program processing.

3. Since the parameter data area has been erased in boot mode, the data is set to H′FF. The

application program lights all the LEDs.

Note: For details on how the application program operates the LEDs, see section 5.3,

Application (Sample) Program.

Rev. 1.0, 03/03, page 17 of 78

4.2

Transferring Program/Erase Control Program

(Host)

Program/erase control program

Parameter data Data_00.mot (new data)

Start request for program processing

Transfer of program/erase control program

H8S/2612F (MDO = 1, MD1 = 1, MD2 = 1, FWE = 0 → 1)

CAN

(Flash memory)

(RAM)

Program/erase control program

Application program

Sample1.mot

Parameter data: Erased

(All data is set to H'FF)

Description:

1. The host uses HCAN communication to issue a request to start the reprogram processing.

2. The application program accepts this request, and then enters the transfer processing of the

program/erase control program.

3. The host transfers the program/erase control program.

4. The application program stores the program/erase control program to be transferred in RAM.

After completion of the transfer, the application program jumps to the program/erase control

program in RAM.

5. The user uses the switch on the target board to set the FWE pin to on (1). Setting FWE = 1

clears the hardware protect to enable erasing and programming of the flash memory.

Rev. 1.0, 03/03, page 18 of 78

4.3

Erasing Blocks of Flash Memory

(Host)

Program/erase control program

Parameter data Data_00.mot (new data)

Erase request

H8S/2612F (MDO = 1, MD1 = 1, MD2 = 1, FWE = 1)

CAN

(Flash memory)

Application program

(RAM)

Program/erase control program

Sample1.mot

Erasing blocks

Description:

1. The host uses HCAN communication to issue a request for erasing blocks in the area in which

the new data is to be programmed.

2. The program/erase control program in RAM erases the requested blocks. However, the

program in the initial state only executes erase-verify without executing erase because all

blocks have been erased.

Rev. 1.0, 03/03, page 19 of 78

4.4

Programming New Application Program

(Host)

Program/erase control program

Parameter data Data_00.mot (new data)

Parameter data Data_00.mot

(new data)

H8S/2612F (MDO = 1, MD1 = 1, MD2 = 1, FWE = 1 → 0)

CAN

(Flash memory)

(RAM)

Program/erase control program

Application program

Sample1.mot

Parameter data Data_00.mot

(new data)

Description:

1. The host provides the program data (Data_00.mot) via HCAN communication.

2. The program/erase control program in RAM receives the program data and then programs it

to the flash memory.

3. After the data has been programmed, set the FWE pin to off (0).

4. Restart the application program. Then, the application program refers to the parameter data

(new data) and blinks the LEDs.

Note: For details on how the application program operates the LEDs, see section 5.3,

Application (Sample) Program.

Rev. 1.0, 03/03, page 20 of 78

Section 5 Details of Software

5.1

F-ZTAT Microcomputer H-CAN Program

The F-ZTAT Microcomputer H-CAN Program (FlashCAN.exe) runs in the host (PC).

No. File Name

Description

FlashCAN.exe

Main section of the F-ZTAT Microcomputer H-CAN Program

SCI2612F3.inf

Information file (for SCI communication) for the H8S/2612F

microcomputer

SCI2612F3.sub

HCAN2612F3.inf

Load module of the program control program

Information file (for H-CAN communication) for the H8S/2612F

microcomputer

HCAN2612F3.sub

HCAN2612F3.src

HCAN2612F3.bat

Load module of the program/erase control program

Source file of the program/erase control program

DOS prompt batch file that assembles and links the program/erase

control program

Hew2.hws

Hew project file that assembles and links the program/erase control

program

Example of the FlashCAN.exe window (Main window)

(Window for setting the CAN communication specifications)

5.2

SCI-HCAN Communication Conversion Program

The SCI-HCAN communication conversion program (SCItoCAN.mot) runs in the SCI-HCAN

communication conversion board.

No. File Name

SCItoCAN.mot

Description

On-chip load module for the H8S/2612F on the SCI-HCAN

communication conversion board. This module converts the interface

between the SCI and HCAN. It uses the on-chip SCI and HCAN for the

H8S/2612F on the SCI-HCAN communication conversion board.

Note: Download the SCI-HCAN communication conversion program to the SCI-HCAN

communication conversion board in boot mode in advance.

Rev. 1.0, 03/03, page 21 of 78

5.3

Application (Sample) Program

The application (sample) program (Sample1.mot) runs on the target board.

No. File Name

Description

Sample1.mot

On-chip load module for the H8S/2612F on the target board. This

module includes the flash-memory reprogram processing in user

program mode. It provides the sample function that lights and

blinks the LEDs to let you visually check the operation of the

application.

Data_FF.motData_00.mot Parameter data of the pattern by which the Sample1.mot lights

and blinks the LEDs.

H′FF (erased): Lights all the LEDs.

H′00: Blinks the LEDs at one-second intervals.

HCAN_up.c

Sample1.c

io_2612.h

Sample1.mot source file that includes the flash-memory

reprogram processing

Sample1.mot source file that includes the function for lighting and

blinking the LEDs

Include file that defines the on-chip I/O register. This file has been

included from HCAN_up.c and Sample.c.

Sample1.bat

Hew2.hws

DOS prompt batch file that compiles and links the program.

Hew project file that compiles and links the program.

Rev. 1.0, 03/03, page 22 of 78

Section 6 Example of Creating Application (Sample)

Program

6.1

Functions and Variables

1. List of Functions

Source name: HCAN_up.c

Abbreviation

Module Name

Power-on reset processing Performs initialization.

This function checks whether the H

Description

PowerON_Reset

command (0x48) is received, and then

switches the user program processing and

sample program.

UserProgramMode_Main User program processing Transfers the program/erase control

program.

InitHCAN

HCAN initialization

Initializes HCAN communication.

CAN_MB5_trs1byte

CAN_MB4_rcv1byte

Transmitting CAN one-byte Transmits data (HCAN communication).

Receiving CAN one-byte

Receives data (HCAN communication).

Source name: Sample1.c

Abbreviation

Module Name

Description

UserApli

LED display switching

Checks the parameters and controls the

LEDs (lights or blinks all LEDs).

2. Variables

All the variables in use are internal variables.

Rev. 1.0, 03/03, page 23 of 78

6.2

Example of Changing CAN Communication Settings

1. Change the bit rate from 1000 kbit/s to 500 kbit/s.

In (1) HCAN.BCR.WORD = 0x0034;, change 0x0034 to 0x0134;.

The baud rate prescaler is set to 4 system clocks, and the bit rate is set to 500 kbit/s.

See the register description for BCR in the hardware manual.

2. Change the data length from 1 byte to 8 bytes.

In (2) HCAN.MC[4][1-1] = 0x01;, change 0x01; to 0x08;.

The receive data length is set to 8 bytes.

In (5) HCAN.MC[5][1-1] = 0x01;, change 0x01; to 0x08;.

The transmit data length is set to 8 bytes.

See the register description for MC0 to MC15 in the hardware manual.

3. Change the receive mailbox ID from 0x0602 to 0x0005.

In (3) HCAN.MC[4][5-1] = 0x20;, change 0x20; to 0xA0;.

In (4) HCAN.MC[4][6-1] = 0x7F;, change 0x7F; to 0x00;.

The receive mailbox ID (ID28 to ID18) is set to 0x0005.

In (6) HCAN.MC[5][5-1] = 0x40;, change 0x40; to 0x80;.

In (7) HCAN.MC[5][6-1] = 0xC0;, change 0xC0; to 0x00;.

The transmit mailbox ID (ID28 to ID18) is set to 0x0004.

See the register description for MC0 to MC15 in the hardware manual.

Rev. 1.0, 03/03, page 24 of 78

Program lists (1) to (3)

Source name: HCAN_up.c

Module name: InitHCAN

/*****************************************************************************************/

/* HCAN initialization

/* • Baud rate 1000kbps, TSEG1=4,TSEG2=3,BRP=0,SJW=0

/* • MB4: Receiving “flash-memory reprogram request” [ID(11bit):03F9]

/* • MB5: Transmitting “flash-memory reprogram response” [ID(11bit):0602]

/* Remarks: Since communication will take place during operation in RAM, set program to */

/* prohibit any interrupt. */

/*****************************************************************************************/

void InitHCAN( void )

{

int i, j;

/* Loop counter */

/* Clear HCAN module stop bit (MSTPCRC) */

System.MSTPCRC.BIT.HCANCKSTP = 0;

(1) HCAN.BCR.WORD = 0x0034; →0x0134; /* 1000-kbps (at 20 MHz) baud rate setting

HCAN.MBCR.WORD

MB4=Rcv */

= 0x1100;

/* Transmission and reception setting for mailboxes

/* Clear MC [4-5] [0-7] and MD [4-5] [0-7] to all 0 */

for ( j = 4; j <= 5; j++ ) {

for ( i = 0; i < 8; i++ ) {

HCAN.MC[j][i] = 0x00;

HCAN.MD[j][i] = 0x00;

/* MC[4][0] to MC[5][7] */

/* MD[4][0] to MD[5][7] */

}

HCAN.MCR.BYTE = 0x04;

/* Transmission method: Order of mailboxes */

/* While not in HCAN normal mode */

/* Enter HCAN normal mode */

while ( HCAN.GSR.BIT.GSR3 == 1 );

/* Settings for mailbox 4 (receive: flash-memory reprogram request) */

(2) HCAN.MC[4][1-1] = 0x01; →0x08;

HCAN.MC[4][5-1] = 0x00;

/* MB4 data length = 1 byte

Data frame, standard format

(3) HCAN.MC[4][5-1] = 0x20; →0xA0;

(4) HCAN.MC[4][6-1] = 0x7F; →0x00;

/* ID: x xxxx xxx0 01-- ---- ---- ---- ----

/* ID: 0 1111 111x xx-- ---- ---- ---- ----

/* Settings for mailbox 5 (transmit: flash-memory reprogram response) */

(5) HCAN.MC[5][1-1] = 0x01; →0x08;

HCAN.MC[5][5-1] = 0x00;

/* MB5 data length = 1 byte

Data frame, standard format

(6) HCAN.MC[5][5-1] = 0x40; →0x80;

(7) HCAN.MC[5][6-1] = 0xC0; →0x00;

}

/* ID: x xxxx xxx0 10-- ---- ---- ---- ----

/* ID: 1 1000 000x xx-- ---- ---- ---- ----

Rev. 1.0, 03/03, page 25 of 78

6.3

Example of Changing Receive and Transmit Mailbox Numbers for

CAN Communications

Change the receive and transmit mailbox numbers (change [4] to [14] for the receive mailbox, and

[5] to [15] for the transmit mailbox).

1. Change the transmit/receive direction of the mailbox.

In (1) HCAN.MBCR.WORD = 0x1100; change 0x1100; to 0x0140;.

Only MBCR14 is set to 1, and only mailbox 14 is set for reception.

See the register description for MBCR in the hardware manual.

2. Change the initialization for the mailbox.

In (2), change for(j=4;j<=5;j++) to for(j=14;j<=15;j++){.

Only mailboxes 14 and 15 will be initialized.

See the register description for MC0 to MC15 and MD0 to MD15 in the hardware manual.

3. Change the settings for the mailbox.

In (3) to (6), change HCAN.MC[4] to HCAN.MC[14].

In (7) to (10), change HCAN.MC[5] to HCAN.MC[15].

The receive mailbox [14] and transmit mailbox [15] are set.

See the register description for MC0 to MC15 in the hardware manual.

4. Change the trigger receive processing.

In (11), change if(HCAN.RXPR.BIT.RXPR4==1){ to if(HCAN.RXPR.BIT.RXPR14==1){.

See the register description for RXPR in the hardware manual.

5. Change the receive processing.

In (12), change while(HCAN.RXPR.BIT.RXPR4==0); to

while(HCAN.RXPR.BIT.RXPR14==0);.

In (13) HCAN.RXPR.WORD=0x1000;, change 0x1000; to 0x0040;.

In (14), change return HCAN.MD[4][0] to return HCAN.MD[14][0];.

See the register description for RXPR and MD0 to MD15 in the hardware manual.

6. Change the transmit processing.

In (15), change HCAN.MD[5][0] to HCAN.MD[15][0].

In (16), change HCAN.TXPR.BIT.TXPR5 to HCAN.TXPR.BIT.TXPR15.

In (17), change while(HCAN.TXPR.BIT.TXPR5==0); to

while(HCAN.TXPR.BIT.TXPR15==0);.

In (18) HCAN.TXACK.WORD=0x2000;, change 0x2000; to 0x0080;.

See the register description for MD0 to MD15, TXPR, and TXACK in the hardware manual.

Rev. 1.0, 03/03, page 26 of 78

Program lists (1) to (3)

Source name: HCAN_up.c

Module name: InitHCAN

/*****************************************************************************************/

/* HCAN initialization

/* • Baud rate: 1000kbps, TSEG1=4,TSEG2=3,BRP=0,SJW=0

/* • MB4: Receiving “flash-memory reprogram request” [ID(11bit):03F9]

/* • MB5: Transmitting “flash-memory reprogram response“ [ID(11bit):0602]

/* Remarks: Since communication will take place during operation in RAM, set program to */

/* prohibit any interrupt. */

/*****************************************************************************************/

void InitHCAN( void )

{

int i, j;

/* Loop counter */

/* Clear HCAN module stop bit (MSTPCRC)*/

System.MSTPCRC.BIT.HCANCKSTP = 0;

HCAN.BCR.WORD

= 0x0034;

/* 1000-kbps (at 20 MHz) baud rate setting */

(1) HCAN.MBCR.WORD = 0x1100; →0x0140; /* Transmission and reception setting for mailboxes

MB4=Rcv */

/* Clear MC [4-5] [0-7] and MD [4-5] [0-7] to all 0 */

(2) for ( j = 4; j <= 5; j++ ) { →for ( j = 14; j <= 15; j++ )

for ( i = 0; i < 8; i++ ) {

HCAN.MC[j][i] = 0x00;

HCAN.MD[j][i] = 0x00;

/* MC[4][0] to MC[5][7] */

/* MD[4][0] to MD[5][7] */

}

HCAN.MCR.BYTE = 0x04;

/* Transmission method: Order of mailboxes */

/* While not in HCAN normal mode */

/* Enter HCAN normal mode */

while ( HCAN.GSR.BIT.GSR3 == 1 );

/* Settings for mailbox 4 (receive: flash-memory reprogram request) */

(3) HCAN.MC[4] → [14] [1-1] = 0x01;

(4) HCAN.MC[4] → [14] [5-1] = 0x00;

(5) HCAN.MC[4] → [14] [5-1] = 0x20;

(6) HCAN.MC[4] → [14] [6-1] = 0x7F;

/* MB4 data length = 1 byte

Data frame, standard format

/* ID: x xxxx xxx0 01-- ---- ---- ---- ----

/* ID: 0 1111 111x xx-- ---- ---- ---- ----

/* Settings for mailbox 5 (transmit: flash-memory reprogram response) */

(7) HCAN.MC[5] → [15] [1-1] = 0x01;

(8) HCAN.MC[5] → [15] [5-1] = 0x00;

(9) HCAN.MC[5] → [15] [5-1] = 0x40;

(10)HCAN.MC[5] → [15] [6-1] = 0xC0;

}

/* MB5 data length = 1 byte

Data frame, standard format

/* ID: x xxxx xxx0 10-- ---- ---- ---- ----

/* ID: 1 1000 000x xx-- ---- ---- ---- ----

Rev. 1.0, 03/03, page 27 of 78

Program list (4)

Source name: HCAN_up.c

Module name: PowerOn_Reset

/*****************************************************************************************/

/* Power-on reset processing

Waiting for trigger for entering user program mode (receiving H command)

Switching between sample program and user program mode

/*****************************************************************************************/

#pragma section _BOOT

/* Section name "P_BOOT" */

void PowerON_Reset(void){

volatile unsigned char LatchMDCR;

unsigned char Data;

/* Power-on reset (vector number 0) handler */

LatchMDCR = System.MDCR.BYTE;

/* Prohibit interrupt */

set_imask_ccr(1);

/* Latch MD2 to MD0 */

set_imask_exr(7);

HCAN.IRR.WORD

InitHCAN();

= 0x0100;

/* Write 1 to IRR0 and clear to 0 */

/* User program */

Data = 0x00;

PORT.PDDDR.BYTE = 0xFF;

PORT.PDDR.BYTE = 0xFF;

while(Data != 'H'){

/* Initialize LEDs */

/* H command? */

(11) if(HCAN.RXPR.BIT.RXPR4 →RXPR14 == 1){ /* Has any data been received? */

Data = CAN_MB4_rcv1byte();

}else{

UserApli();

/* Sample program */

}

PORT.PDDR.BYTE = 0xFF;

UserProgramMode_Main();

sleep();

/* Turn off LEDs */

/* (Do not come here) */

}

Rev. 1.0, 03/03, page 28 of 78

Program list (5)

Source name: HCAN_up.c

Module name: CAN_MB4_rcv1byte

/*****************************************************************************************/

/* Receive CAN one-byte

/*****************************************************************************************/

unsigned char CAN_MB4_rcv1byte( void ){

(12) while( HCAN.RXPR.BIT.RXPR4 →RXPR14 == 0 ); /* Wait for MB4 to complete receiving */

if( (HCAN.IRR.WORD & 0x1802) != 0 ){

while(1);

/* Infinite loop */

}

(13) HCAN.RXPR.WORD = 0x1000; →0x0040;

/* Clear receive flag */

(14) return HCAN.MD[4] → [14] [0];

/* Receive one byte from MD4 */

}

Program list (6)

Source name: HCAN_up.c

Module name: CAN_MB5_trs1byte

/*****************************************************************************************/

/* Receive CAN one-byte */

/*****************************************************************************************/

void CAN_MB5_trs1byte( unsigned char TrsData ){

(15) HCAN.MD[5] → [15] [0] = TrsData;

(16) HCAN.TXPR.BIT.TXPR5 →TXPR15 |= 1;

/* Set one byte of transmit data to MD5 */

/* Start transmission */

(17) while( HCAN.TXPR.BIT.TXPR5 →TXPR15 == 0 );/* Wait for completion of transmission */

if( (HCAN.IRR.WORD & 0x1802) != 0 ){

while(1);

/* Infinite loop */

}

(18) HCAN.TXACK.WORD = 0x2000; →0x0080;

/* Transmission completed */

}

Rev. 1.0, 03/03, page 29 of 78

6.4

Application (Sample) Program Flowchart

Restart

Mode latch processing

Prohibit interrupts

Initialize H-CAN

communication settings

Initialize LEDs

Yes

Is receive data

H command?

Has data been

received?

Data receive

processing

Yes

Is receiving

completed?

Sample program

Does IRR error

occur?

User program

processing

Yes

Is parameter 0x00?

Infinite loop

ACK transmission

Receive upper one

byte of program size

Turn on all LEDs

Turn off all LEDs

Wait processing

Turn on all LEDs

Echoback processing

Receive lower one

byte of program size

Echoback processing

Is transfer of program

size completed?

Yes

Receive program

RAM transfer

processing

Echoback processing

Jump to RAM

Rev. 1.0, 03/03, page 23 of 78

Section 7 Example of Creating Program/Erase

Control Program

7.1

Overview

The following describes the calculation of the application time for the erase (E) and program (P)

bits, and the wait time for the SWE bit. The parenthesized value indicates the unit.

Calculation methods

1. Time required for one cycle = 1 (sec) ÷ target clock (MHz)

2. Time required for one loop = Time required for one cycle (µs) × number of cycles

required for one loop

3. Wait time = Target clock (MHz) × stipulated wait time (µs)

4. Wait loop count = Wait time ÷ time required for one loop

5. Wait time other than after setting of the P or E bit = Wait loop count + 1

(Since this wait time must be equal to or greater than the stipulated wait time, add 1 to the

wait loop count obtained by the calculation.)

6. Wait time after setting of the P or E bit = Wait loop count

(Since this wait time must be equal to or smaller than the stipulated wait time, use the wait

loop count obtained by the calculation.)

Expressions

The following shows examples of calculating the wait time:

Prerequisites:

Target clock = 20 (MHz)

Number of cycles required for one loop = 4 (cycles)

Example 1: Obtain the wait time after the clearing of the SWE bit (100 µs or longer).

1. 20 (MHz) × 1000* = 20000 (kHz)

2. 20000 (kHz) × 100 (µs) = 2000000

3. 2000000 ÷ 4 (cycles) × 1000* = 500 (times)

4. 500 (times) + 1 (time) = 501 (times)

5. WLOOP100 = 501

6. Time required for one cycle: 1 (sec) ÷ 20 (MHz) = 0.05 (µs)

7. Time required for one loop: 0.05 (µs) × 4 (cycles) = 0.2 (µs)

8. Wait loop time: 0.2 (µs) × 501 (times) = 100.2 (µs)

Example 2: Obtain the wait time after the setting of the E bit (within 10 ms).

1. 20 (MHz) × 1000* = 20000 (kHz)

2. 10000 (µs) ÷ 1000* = 10 (ms)

Rev. 1.0, 03/03, page 31 of 78

3. 20000 (kHz) × 10 (ms) = 200000

4. 200000 ÷ 4 (cycles) = 50000 (times)

5. WTIME10000 = 50000

6. Time required for one cycle: 1 (sec) ÷ 20 (MHz) = 0.05 (µs)

7. Time required for one loop: 0.05 (µs) × 4 (cycles) = 0.2 (µs)

8. Wait loop time: 0.2 (µs) × 50000 (times) = 10000 (µs) = 10 (ms)

Note: * To minimize error, the above examples convert the unit of frequency from MHz to kHz

to use the thousandfold values in calculation. Then, the results are divided by 1000 to

obtain the correct count.

1. Erasing Flash Memory

(1) Erase

Erase functionality erases the flash memory block by block. To use erase, set 1 to the SWE

bit in the flash memory control register (FLMCR), and then use the erase block register

(EBR) to set one bit of the area in the flash memory to be erased. Then, set the ESU bit in

FLMCR to prepare for erase mode (erase mode setup), and set the E bit in FLMCR to shift

the operating mode to erase mode. The period of time during which the E bit is set is the

erase time. After the erase time has elapsed, clear the E, ESU, and SWE bits in FLMCR to

cancel erase mode.

(2) Erase-Verify

Erase-verify functionality verifies whether the flash memory has been erased successfully.

To use erase-verify, set the SWE bit and then the EV bit in FLMCR to shift the operating

mode to erase-verify mode. Before the flash memory is read in erase-verify mode, a

dummy writing of data (H′FF) is performed on the address to be read. When the flash

memory is subsequently read (the verify data is read in 16-bit units), the data at the latched

address is read. If the read data has been erased (that is, all data is 1), a dummy writing of

the next data is performed. Then erase-verify is performed for the next data. Upon

completion of the verify operation, clear the EV and SWE bits in FLMCR to cancel erase-

verify mode.

The following shows the wait time for each bit in FLMCR for erasing the flash memory.

Rev. 1.0, 03/03, page 32 of 78

Table 7.1 FLMCR Bits and Wait Time for Erasing Flash Memory

Set or Clear Each Bit

SWE set

Wait Time (Standard Value) Wait Time at 20 MHz

1 µs or greater

100 µs or greater

Up to 10 ms

1.2 µs

ESU set

100.2 µs

10.0 ms

10.2 µs

20.2 µs

2.2 µs

E set

E cleared

10 µs or greater

20 µs or greater

2 µs or greater

4 µs or greater

100 µs or greater

100 times

ESU cleared

EV set

Dummy write

EV cleared

SWE cleared

Maximum count

4.2 µs

100.2 µs

100 times

2. Programming Flash Memory

(1) Program

Program functionality programs data to the flash memory. One program is performed in

128-byte units. To use program, set 1 to the SWE bit in the flash memory control register

(FLMCR). Then, the system stores the 128-byte program data in the program data area and

reprogram data area, and then sequentially programs 128 bytes of data from the program

data area in RAM to the target address (that is, byte-by-byte data transfer is sequentially

performed 128 times). Note that the lower eight bits of the target start address must be H′00

or H′80. The program address and program data are latched in the flash memory.

A program of data of less than 128 bytes also requires a transfer of 128-byte data, for

which data H′FF must be programmed to unnecessary address. Then, set the PSU bit in

FLMCR to prepare for program mode (program mode setup), and set the P bit in FLMCR

to shift the operating mode to program mode.

The period of time during which the P bit is set is the program time for the flash memory.

After the program time has elapsed, clear the P, PSU, and SWE bits in FLMCR to cancel

program mode. (Note that an additional program is performed for the programmed bits for

up to the sixth initial program.)

(2) Program-Verify

Program-verify functionality verifies whether the flash memory has been programmed

successfully. Set the SWE bit and then the PV bit in FLMCR to shift the operating mode to

program-verify mode.

Rev. 1.0, 03/03, page 33 of 78

Before the flash memory is read in program-verify mode, a dummy writing of data (H′FF)

is performed on the address to be read. When the flash memory is subsequently read (the

verify data is read in 16-bit units), the data at the latched address is read. Then, the system

compares the programmed data with the verify data, calculates the reprogram data, and

then transfers the reprogram data to the reprogram data area. Upon completion of the

verification of the data of 128 bytes, clear the PV and SWE bits in FLMCR to cancel

program-verify mode.

The following shows the wait time for each bit in FLMCR for programming the flash memory.

(Note that additional program data is calculated and transferred to the additional program data area

for up to the sixth initial program.)

Table 7.2 FLMCR Bits and Wait Time for Programming Flash Memory

Set or Clear Each Bit

SWE set

Wait Time (Standard Value) Wait Time at 20 MHz

1 µs or greater

1.2 µs

PSU set

500 µs or greater

50.2 µs

P set (1st to 6th)

(1st to 6th) additional

(7th to 1000th)

Up to 30 µs

Up to 10 µs

Up to 200 µs

30.0 µs

10.0 µs

200.0 µs

P cleared

5 µs or greater

20 µs or greater

2 µs or greater

100 µs or greater

1000 times

5.2 µs

PSU cleared

PV set

5.2 µs

20.2 µs

2.2 µs

Dummy write

PV cleared

SWE cleared

Maximum count

2.2 µs

100.2 µs

1000 times

Rev. 1.0, 03/03, page 34 of 78

7.2

Functions, Variables, and Constants

1. Functions

Source name: HCAN2612f3.src

Abbreviation

Module Name

Description

MAIN

Main processing

Receives the initialization target clock for the stack,

receives a check command, and performs check.

(W and C commands)

WLOOP_INI

Wait loop initialization

processing

Initializes the wait loop.

WAITLOOP_CAL Wait loop calculation main Calculates and sets the wait loop.

processing

WLOOP_CAL

Wait loop calculation

processing

Calculates the wait loop.

WCMD

W command processing Performs erase processing, program processing,

and checksum processing

GET_EADR

BLK_CHECK

GET_WADR

GET_BUFFER

Erase address receive

processing

Receives the start address of the erase block.

Specified block check

processing

Checks the specified block.

Program address receive Receives the program address (four bytes).

processing

Program data receive

processing

Receives the program data (128 bytes).

RCVNBYTE

RCV1BYTE

N-byte receive processing Receives N bytes of data.

One-byte receive

processing

Receives one byte of data.

TRS1BYTE

One-byte transmit

processing

Transmits one byte of data.

XON_CHECK

FWRITE128

XON check processing

Checks a response during program processing.

Flash memory 128-byte

program processing

Performs:

Initial program and verify (for the first to the sixth

program).

Initial program, and program-verify (before the

program).

Additional program (for the first to the sixth

program).

Reprogram and program-verify (for the 7th to the

1000th program).

Rev. 1.0, 03/03, page 35 of 78

Abbreviation

Module Name

Description

FWRITEVF

Program-verify

processing

Performs program-verify, creates reprogram data,

and creates additional program data.

FWRITE

Flash memory program

processing

Programs data to the flash memory.

BLK1_ERASE

One-block erase

processing

Checks the specified block.

Performs initial erase-verify (before the erasing).

Erases data, and performs erase-verify (for the first

to the 100th erase).

FERASEVF

FERASE

Erase-verify processing

Performs erase-verify.

Flash memory erase

processing

Erases the flash memory.

CHECKSUM

Checksum processing

Calculates and transmits the checksum value (four

bytes).

2. Variables

Abbreviation

Variable Name

Program address

Program buffer

Buffer

Description

Size

W_ADR

W_BUF

BUFF

Stores the program address.

Stores the program data.

Stores the reprogram data.

4 bytes

128 bytes

2 bytes

OWBUFF

COUNT

Additional program buffer Stores the additional program data.

Counter

Counter for the number of times the

erase count is programmed to the

counter

EVF_ST

EVF_ED

BLK_NO

Erase start address

Erase end address

Stores the start address of the erase

block.

4 bytes

1 byte

Stores the end address of the erase

block.

Erase specification block Stores the erase specification block

No.

number.

VF_RET

Verification result flag

Program data size

Erase block address

Result of erase-verify and program-verify 1 byte

RESTSIZE

E_ADR

Stores the program data size.

Stores the erase block address.

Pointer to the erase block address.

4 bytes

64 bytes

4 bytes

E_ADR_PTR

Erase block address

pointer

WORKCLK

ERASEBLOCK

WLOOP1

Clock

Stores the target clock.

4 bytes

1 byte

Erase block count

Wait 1 µ

Stores the number of erase blocks.

Stores the loop count for the 1 µs wait.

Stores the loop count for the 2 µs wait.

2 bytes

WLOOP2

Wait 2 µ

Rev. 1.0, 03/03, page 36 of 78

Abbreviation

WLOOP4

Variable Name

Wait 4 µ

Description

Size

Stores the loop count for the 4 µs wait.

Stores the loop count for the 5 µs wait.

2 bytes

WLOOP5

Wait 5 µ

WLOOP10

WLOOP20

WLOOP50

WLOOP100

WTIME10

Wait 10 µ

Stores the loop count for the 10 µs wait. 2 bytes

Stores the loop count for the 20 µs wait. 2 bytes

Stores the loop count for the 50 µs wait. 2 bytes

Stores the loop count for the 100 µs wait. 2 bytes

Wait 20 µ

Wait 50 µ

Wait 100 µ

Program wait 10 µ

Stores the loop count for the 10 µs wait

4 bytes

during an additional program.

WTIME30

Program wait 30 µ

Program wait 200 µ

Erase wait loop 10 m

Stores the loop count for the 30 µs wait

4 bytes

during an initial program.

WTIME200

WTIME1000

Stores the loop count for the 200 µs wait 4 bytes

during a reprogram.

Stores the loop count for the 10 ms wait 4 bytes

during erasing.

Rev. 1.0, 03/03, page 37 of 78

7.3

Example of Changing Receive and Transmit Mailbox Numbers for

CAN Communications

Change the receive and transmit mailbox numbers (change [4] to [14] for the receive mailbox, and

[5] to [15] for the transmit mailbox).

1. Change the registers and bits.

Add the following definitions for the registers and bits in (1) to (9):

(1) RXPR14_MOV

(2) RXPR_L

.EQU

H′0040

H′FFF80F

(3) RXPR14

(4) MD14_0

H′FFF920

H′FFF928

H′FFF807

(5) MD15_0

(6) TXPR_L

(7) TXPR15

(8) TXACK15

(9) TXACK15_MOV

H′0080

See the register description for RXPR, TXPR, TXACK, and MD0 to MD15 in the hardware

manual.

2. Change the settings of receive processing.

In (10) and (11), change RXPR4 to RXPR14.

In (10), change RXPR to RXPR_L.

In (12), change MD4_0 to MD14_0.

In (13), change RXPR4_MOV to RXPR14_MOV.

See the register description for RXPR and MD0 to MD15 in the hardware manual.

3. Change the settings of transmit processing.

In (14), change MD5_0 to MD15_0.

In (15) and (17), change TXPR to TXPR_L.

In (16), (18), and (19), change TXPR5 to TXPR15.

In (20), change TXACK5_MOV to TXACK15_MOV.

See the register description for TXPR, TXACK, and MD0 to MD15 in the hardware manual.

Rev. 1.0, 03/03, page 38 of 78

Program list (1)

Source name: HCAN2612f3.src

Module name: Data

; HCAN

RXPR

RXPR4:

.EQU

H'FFF80E

; Receive complete register (16 bits)

RXPR4_MOV:

(1) RXPR14_MOV

(2) RXPR_L

(3) RXPR14

MD4_0

H'1000

H’0040

H’FFF80F

; Receive complete register (lower 8 bits)

H'FFF8D0

H'FFF8D8

H’FFF920

H’FFF928

H'FFF806

MD5_0

(4) MD14_0

(5) MD15_0

TXPR

TXPR5:

(6) TXPR_L

(7) TXPR15

TXACK

H’FFF807

; Transmit wait register (lower 8 bits)

; Transmit acknowledge register

H'FFF80A

TXACK5:

TXACK5_MOV:

(8) TXACK15

H'2000

(9) TXACK15_MOV .EQU

H’0080

H'FFF812

H'1802

IRR

IRR_ERR:

.EQU

Rev. 1.0, 03/03, page 39 of 78

Program list (2)

Source name: HCAN2612f3.src

Module name: RCV1BYTE

;*****************************************************************************************

; * TITLE

/ H-CAN 1 BYTE DATA RECEPTION

; * FUNCTION / RECEIVE 1 BYTE DATA

; * INPUT

/ -

; * OUTPUT

/ R2L = RECEIVED DATA

;*****************************************************************************************

RCV1BYTE

.EQU

SUB.W

BLD.B

BST.B

MOV.W

BEQ

R0,R0

(10)

(11)

#RXPR4,@RXPR →#RXPR14,@RXPR_L

#RXPR4 →#RXPR14,R0L

R0,R0

RCV1BYTE

;

MOV.W

AND.W

BNE

@IRR,R0

; ERROR CHECK

#IRR_ERR,R0

RCV_ERR

;

(12)

;

MOV.B

@MD4_0 →@MD14_0,R2L

; RECEIVE DATA TO R0H

; RXPR4 CLEAR

(13)

MOV.W

RTS

#RXPR4_MOV →#RXPR14_MOV,R0

R0,@RXPR

;

RCV_ERR

;

BRA

RCV_ERR

; INFINITE LOOP

Rev. 1.0, 03/03, page 40 of 78

Program list (3)

Source name: HCAN2612f3.src

Module name: TRS1BYTE

;*****************************************************************************************

; * TITLE

/ H-CAN 1 BYTE DATA TRANSMISSION

; * FUNCTION / SEND 1 BYTE DATA

; * INPUT

/ R2L = SEND DATA

/ -

; * OUTPUT

;*****************************************************************************************

TRS1BYTE.

(14)

;

EQU

MOV.B

R2L,@MD5_0 →@MD15_0

; TRANSMIT R2L DATA TO MD5_0

(15)

(16)

(17)

;

MOV.W

BSET.B

MOV.W

@TXPR →@TXPR_L,R0

#TXPR5 →#TXPR15,R0H

R0,@TXPR →@TXPR_L

; SET TXPR5

TRS_WAIT

(18)

(19)

SUB.W

BLD.B

BST.B

MOV.W

BNE

R0,R0

#TXPR5, →#TXPR15 @TXPR

#TXPR5, →#TXPR15 R0H

R0,R0

TRS_WAIT

;

MOV.W

AND.W

BNE

@IRR,R0

; ERROR CHECK

#IRR_ERR,R0

TRS_ERR

;

(20)

MOV.W

RTS

#TXACK5_MOV →#TXACK15_MOV,R0

R0,@TXACK ; CLEAR TXACK5

;

TRS_ERR

;

BRA TRS_ERR

; INFINITE LOOP

Rev. 1.0, 03/03, page 41 of 78

7.4

Program/Erase Program Flowchart

Restart

Set stack

(4 bytes)

Yes

Receive target clock

Is clock smaller than

minimum?

Yes

Is clock smaller than

maximum?

(1 byte)

BELL transmission

Infinite loop

(1 byte)

Receive command

Is received data W command?

Yes

See the

next page.

W command processing

Is received data C command?

Checksum calculation

Has calculation

been done for

all blocks?

Yes

(4 bytes)

Checksum transmission

Rev. 1.0, 03/03, page 42 of 78

W command

processing

Receive number of

erase blocks

(1 byte)

Flash memory erase

processing

Is number of erase

blocks 0?

Receive erase

block address

Yes

(4 bytes × erase block count)

Check blocks

Yes

Does block check

error occur?

Erase one block

Yes

Does erase error occur?

Is processing

completed for number

of erase blocks?

Flash memory

program processing

(1 byte)

Transmit ACK

Receive

program address

and program size

(Program address: 4 bytes)

(Program size: 4 bytes)

Yes

Is address or size

error found?

(1 byte)

BELL transmission

One-block program

processing

Infinite loop

See the next page.

Rev. 1.0, 03/03, page 43 of 78

One-block program

processing

(1 byte)

XON transmission

Data reception

Yes

Is received data ACK?

Is received data XON?

Yes

Receive program data

(128 bytes)

Program 128 kbytes

Yes

Does program error

occur?

Yes

Is processing completed

for program size?

(1 byte)

XON transmission

Data reception

Yes

Is received data ACK?

Is received data XON?

Yes

(1 byte)

Checksum reception

(one block)

(1 byte)

BELL transmission

Infinite loop

Sumcheck processing

Yes

Does sumcheck error

occur?

Return

Rev. 1.0, 03/03, page 44 of 78

Section 8 Functions and Operations of

On-Board Programming Tool

and SCI-HCAN Communication Conversion Program

For details on the on-board programming tool, see the F-ZTAT Microcomputer On-Board Writing

Program Manual.

8.1

Installing On-Board Programming Tool

1. Start Setup.exe.

2. Select the language you want to use and click the OK button.

(Click the Cancel button to cancel the installation of the tool.)

Rev. 1.0, 03/03, page 45 of 78

3. Click the Next button to continue the installation of the tool.

(Click the Cancel button to display the Confirm dialog box to cancel the installation of the

tool.)

4. Select the destination folder where you want to install the tool.

(To change the destination folder, click the Browse button to select another folder.)

Rev. 1.0, 03/03, page 46 of 78

5. Click the Next button.

(Click the Back button to return to step 3.)

(Click the Cancel button to display the Confirm dialog box to cancel the installation of the

tool.)

6. Select a program folder and click the Next button.

(Click the Back button to return to step 3.)

(Click the Cancel button to display the Confirm dialog box to cancel the installation of the

tool.)

Rev. 1.0, 03/03, page 47 of 78

7. The setup status of the tool appears.

(Click the Cancel button to display the Confirm dialog box to cancel the installation of the

tool.)

8. The wizard appears to indicate the completion of the installation. Click the Finish button.

Now, the on-board programming tool is installed completely.

Rev. 1.0, 03/03, page 48 of 78

Select the Start, Programs, and FlashCAN menu, and then the FlashCAN shortcut menu to start

the on-board programming tool.

•

Confirm dialog box to cancel the installation of the tool

Click the Yes button to cancel the installation of the tool.

Click the No button to continue the installation.

•

Confirm dialog box to uninstall the tool

Start Setup.exe to uninstall the installed tool.

Click the OK button and follow the wizard to uninstall the tool.

Click the Cancel button to cancel the uninstallation of the tool.

Rev. 1.0, 03/03, page 49 of 78

8.2

First Programming of Application (Sample) Program to Target

Board

1. Use the serial cable to connect the personal computer to the target board.

(In this application note, the serial cable is connected to COM1.)

2. Turn the target board on.

3. Place the target board in boot mode.

4. Start FlashCAN.exe.

The version information (for a working sample) appears.

5. Click the OK button to display the main window.

6. Click the Select button to select a microcomputer in the Select File dialog box.

Rev. 1.0, 03/03, page 50 of 78

7. Select the SCI2612f3.inf file.

8. Click the Open button to return to the main window.

(Click the Cancel button to return to the main window without selecting a file.)

Rev. 1.0, 03/03, page 51 of 78

9. Click the Change/Set button for the clock and bit rate to make settings.

10. Set the input clock to 20.0000 MHz.

The input clock can be set between 4 MHz and 20 MHz as specified in the SCI2612F3.inf file.

11. Select 1 for the clock ratio.

The clock ratio can be selected from among 1, 2, and 4 as specified in the SCI2612F3.inf file.

12. Select 57600 bit/s (bit rate) for the serial communication.

The bit rate can be selected from among 2400, 4800, 9600, 19200, 38400, 57600, 115200, and

None.

13. Select COM1 for the serial port.

Either COM1 or COM2 can be selected.

Alternatively, you can directly enter any serial port name.

14. Set the timeout value to 5.

The timeout value can be set between 1 and 300.

Rev. 1.0, 03/03, page 52 of 78

15. Click the OK button to return to the main window.

(Click the Cancel button to return to the main window without changing the settings.)

16. Click the Change/Set button for Erase before write to make settings.

Rev. 1.0, 03/03, page 53 of 78

17. Select the write data file Sample1.mot.

Click the Search button to select a file in the Select File dialog box.

18. Select 0x00000000 for the start address.

The start address can be selected from among 000000, 000400, 000800, 000C00, 001000,

008000, 00C000, 00E000, 010000, and 018000 as specified in the SCI2612F3.inf file.

Alternatively, you can directly enter the start address between 000000 and 01FFFE.

19. Select 0x0001FFFF for the end address.

The end address can be selected from among 0003FF, 0007FF, 000BFF, 000FFF, 007FFF,

00BFFF, 00DFFF, 00FFFF, 017FFF, and 018FFF as specified in the SCI2612F3.inf file.

Alternatively, you can directly enter the end address between 000001 and 01FFFF.

20. Set the offset to 0x00000000.

The offset can be set between 000000 and 01FFFF as specified in the SCI2612F3.inf file.

21. Click the OK button to return to the main window.

(Click the Cancel button to return to the main window without changing the settings.)

22. Now, all the settings are made completely. Click the Start button.

Rev. 1.0, 03/03, page 54 of 78

23. The Start dialog box appears.

Restart the target board.

24. Click the OK button to start processing.

(Click the Cancel button to return to the main window.)

25. The status of the boot processing appears.

(Click the Stop button to stop the boot processing and return to the main window.)

26. The status of the write processing appears.

(Click the Stop button to stop the write processing and return to the main window.)

27. The processing completes and the checksum appears.

Rev. 1.0, 03/03, page 55 of 78

28. Confirm the checksum and click the OK button to return to the main window.

Now, the application (sample) program is completely programmed into the target board for the

first time.

Restarting the target board initiates the application (sample) program.

Since the parameter is set to 0xFF, all the LEDs light up.

8.3

Programming SCI-HCAN Communication Conversion Program to

SCI-HCAN Communication Conversion Board

1. Use the serial cable to connect the personal computer to the SCI-HCAN communication

conversion board.

(In this application note, the serial cable is connected to COM1.)

2. Turn the SCI-HCAN communication conversion board on.

3. Place the SCI-HCAN communication conversion board in boot mode.

4. Follow steps 4 to 16 in section 8.2, First Programming of Application (Sample) Program to

Target Board.

5. Select the write data file SCItoCAN.mot in step 17 in section 8.2.

Rev. 1.0, 03/03, page 56 of 78

6. Follow steps 18 to 21 in section 8.2.

7. Now, all the settings are made completely. Click the Start button.

8. The Start dialog box appears.

Restart the SCI-HCAN communication conversion board.

Rev. 1.0, 03/03, page 57 of 78

9. Click the OK button to start processing.

(Click the Cancel button to return to the main window.)

10. The status of the boot processing appears.

(Click the Stop button to stop the boot processing and return to the main window.)

11. The status of the write processing appears.

(Click the Stop button to stop the write processing and return to the main window.)

12. The processing completes and the checksum appears.

13. Confirm the checksum and click the OK button to return to the main window.

Now, the SCI-HCAN communication conversion program is completely programmed into the

SCI-HCAN communication conversion board.

Restarting the SCI-HCAN communication conversion board initiates the SCI-HCAN

communication conversion program.

Rev. 1.0, 03/03, page 58 of 78

8.4

Reprogramming Flash Memory in User Program Mode

1. Use the serial cable to connect the personal computer to the SCI-HCAN communication

conversion board.

(In this application note, the serial cable is connected to COM1.)

2. Use the CAN cable to connect the target board to the SCI-HCAN communication conversion

board.

3. Turn the SCI-HCAN communication conversion board on.

4. Turn the target board on.

5. Place the SCI-HCAN communication conversion board in user mode.

6. Place the target board in user mode (by resetting the target board).

7. Start FlashCAN.exe.

The version information (for a working sample) appears.

8. Click the OK button to display the main window.

The preset contents appear in the main window.

Rev. 1.0, 03/03, page 59 of 78

9. Click the Select button to select a microcomputer in the Select File dialog box.

10. Select the HCAN2612f3.inf file.

11. Click the Open button to return to the main window.

(Click the Cancel button to return to the main window without selecting a file.)

12. Click the Change/Set button for the clock and bit rate to make settings.

Rev. 1.0, 03/03, page 60 of 78

13. Set the input clock of the target board to 20.0000 MHz.

The input clock can be set between 4 MHz and 20 MHz as specified in the HCAN2612F3.inf

file.

14. Set the transmit mailbox ID to 0x03F9.

The transmit mailbox ID can be set between 0000 and 07EF.

Rev. 1.0, 03/03, page 61 of 78

15. Set the receive mailbox ID to 0x0602.

The receive mailbox ID can be set between 0000 and 07EF.

16. Select COM1 for the serial port.

Either COM1 or COM2 can be selected.

Alternatively, you can directly enter any serial port name.

Rev. 1.0, 03/03, page 62 of 78

17. Set the timeout value to 5.

The timeout value can be set between 1 and 300.

18. Select 2 (system clock) for the baud rate prescalor.

The value can be set between 2 and 128.

Rev. 1.0, 03/03, page 63 of 78

19. Select 1 (time quanta) for the synchronization segment.

Only 1 can be selected for this value.

20. Select 5 (time quanta) for time segment 1.

The value can be set between 4 and 16.

Rev. 1.0, 03/03, page 64 of 78

21. Select 4 (time quanta) for time segment 2.

The value can be set between 3 and 8.

22. Select 1 (time quanta) for the resynchronization jump width.

The value can be set between 1 and 4.

Rev. 1.0, 03/03, page 65 of 78

23. Click the OK button to return to the main window.

(Click the Cancel button to return to the main window without changing the settings.)

The bit rate for the HCAN communication appears. This value is based on the settings of the

input clock, serial port, timeout, transmit mailbox ID, and receive mailbox ID.

24. Click the Change/Set button for erase before write to make settings.

25. Click the Search button to select a write data file.

Rev. 1.0, 03/03, page 66 of 78

26. Select the write data file Data_00.mot.

27. Click the Open button to return to the Write and Erase Setting dialog box.

(Click the Cancel button to return to the Write and Erase Setting dialog box without selecting a

file.)

Rev. 1.0, 03/03, page 67 of 78

28. Select 0x00001000 for the start address.

The start address can be selected from among 000000, 000400, 000800, 000C00, 001000,

008000, 00C000, 00E000, 010000, and 018000 as specified in the HCAN2612F3.inf file.

Alternatively, you can directly enter the start address between 000000 and 01FFFE.

29. Select 0x00007FFF for the end address.

The end address can be selected from among 0003FF, 0007FF, 000BFF, 000FFF, 007FFF,

00BFFF, 00DFFF, 00FFFF, 017FFF, and 018FFF as specified in the HCAN2612F3.inf file.

Alternatively, you can directly enter the end address between 000001 and 01FFFF.

Rev. 1.0, 03/03, page 68 of 78

30. Set the offset to 0x00000000.

The offset can be set between 000000 and 01FFFF as specified in the HCAN2612F3.inf file.

31. Place a checkmark (on) in the Erase before write checkbox.

Place a checkmark (on) in the checkbox to erase blocks before the write processing.

Uncheck the checkbox (off) not to erase blocks before the write processing.

Rev. 1.0, 03/03, page 69 of 78

32. Click the OK button to select the blocks to be erased in the Erase Block Selection dialog box.

The blocks between the selected start address and the end address are set for erasure.

33. Click the OK button to return to the main window.

(Click the Cancel button to return to the Write and Erase Setting dialog box.)

34. Now, all the settings are made completely. Click the Start button.

Rev. 1.0, 03/03, page 70 of 78

35. The Start dialog box appears.

Restart the SCI-HCAN communication conversion board.

36. Click the OK button to start processing.

(Click the Cancel button to return to the main window.)

37. The status of the boot processing appears.

(Click the Stop button to stop the boot processing and return to the main window.)

38. The boot processing completes and then the completion message appears.

Rev. 1.0, 03/03, page 71 of 78

39. Click the OK button to return to the main window.

40. Uncheck the Boot checkbox (off).

Place a checkmark in the Write checkbox (on).

Place a checkmark in the Sumcheck checkbox (on).

41. Place the target board in user program mode.

42. Now, all the settings are made completely for writing. Click the Start button.

43. The Start dialog box appears.

Rev. 1.0, 03/03, page 72 of 78

44. Click the OK button to start processing.

(Click the Cancel button to return to the main window.)

45. The status of the write processing appears.

(Click the Stop button to stop the write processing and return to the main window.)

46. The processing completes and the checksum appears.

47. Confirm the checksum and click the OK button to return to the main window.

Now, the flash memory is completely reprogrammed in user program mode.

Restarting the target board initiates the application (sample) program.

Since the parameter is set to 0x00, all the LEDs blink.

8.5

Error Messages for FlashCAN.exe (Additional Messages for HCAN)

1. Error dialog box

The Error dialog box appears if an error occurs.

Check an error message, and then click the OK button.

Rev. 1.0, 03/03, page 73 of 78

2. List of error messages

No. 319

Information file: Incorrect specification of H-CAN.

Description

No. 650

An incorrect HCAN is specified in the information (INF) file.

Transmit-ID was illegally specified.

Description

No. 651

An illegal transmit ID (transmit mailbox ID) is specified.

Receive-ID was illegally specified.

Description

No. 652

An illegal receive ID (receive mailbox ID) is specified.

Transmit-ID/Receive-ID was illegally specified.

Description

The transmit ID (transmit mailbox ID) and receive ID (receive mailbox ID) are

identical.

No. 653

TSEG2 was illegally specified.

Description

No. 654

An illegal TSEG2 (time segment 2) is specified.

TSEG1 was illegally specified.

Description

No. 800

An illegal TSEG1 (time segment 1) is specified.

H-CAN Setup error.

Description

An error is detected during communication of the H command.

The host side received NAK (0x07) and this caused the HCAN setup error.

H-CAN Setup error. (confirmation error)

No. 801

Description

An error is detected during communication of the H command.

The host side received a signal other than ACK (0x06) and NAK (0x07) and this

caused the HCAN setup error.

No. 802

H-CAN Setup error. (time out)

Description

An error is detected during communication of the H command.

The host side could not receive any signal and this caused the timeout. The HCAN

setup failed.

No. 803

H-CAN Send clock error.

Description

An error is detected during transmission with the HCAN frequency.

The host side received NAK (0x07) and this caused the transmission error.

H-CAN Send clock error. (confirmation error)

No. 804

Description

An error is detected during transmission with the HCAN frequency.

The host side received a signal other than ACK (0x06) and NAK (0x07) and this

caused the transmission error.

No. 805

H-CAN Send clock error. (time out)

Description

An error is detected during transmission with the HCAN frequency.

The host side could not receive any signal and this caused the timeout. The

transmission failed.

Rev. 1.0, 03/03, page 74 of 78

Section 9 Supplementary Description

9.1

Required Items for Reprogramming Flash Memory in User Program

Mode

To reprogram the flash memory in user program mode, the user must provide the following

methods. The shaded section in the table indicates the method used in this application note.

1. Items required for user board

No. User Must Provide:

Method Examples

Method for programming in boot mode:

This method switches user mode to boot mode, and vice

versa.

Mode switch and SCI_2 connector

It also provides program data from the SCI_2.

Method for switching the FWE pin by hardware:

This method switches user mode to user program mode,

and vice versa.

Mode switch

Note: Do not always apply a high level voltage to the FWE pin. Be sure to switch the FWE pin

when the CPU is not accessing the flash memory.

2. Items that application must include

No. User Must Provide:

Method Examples

Method for transition to the flash-memory reprogram

processing:

This method accepts a trigger for starting the flash-

memory reprogram processing, and then jumps to the

reprogram processing.

FWE pin level sense, external

interrupt, command reception by

SCI, or command reception by

HCAN, etc.

Method for transferring the program/erase control

program to RAM:

A program in RAM must control the programming and

erasing of the flash memory. To satisfy this condition, this

method transfers the program/erase control program to

RAM, and then jumps to the transferred program.

Transfer from ROM to RAM, transfer

from outside using SCI, or transfer

from outside using HCAN, etc.

Rev. 1.0, 03/03, page 75 of 78

3. Items required by host

No. User Must Provide:

Method Examples

Program/erase control program:

This program is a Motorola-type load module.

The program added to FDT.exe,

added to FlashCAN.exe, or created

Use the program/erase algorithm that is recommended byby the user, etc.

the hardware manual. The user must also install the

transfer function that matches the host to receive

instruction or response for erase blocks, or the program

data.

Method for providing the program data (host):

FDT.exe, FlashCAN.exe, or user-

A host that controls the sequences shown in the above created tool, etc.

table and transfers the program data is necessary.

9.2

Differences between User Program Mode and Boot Mode

Two types of modes are available for on-board reprogramming of the flash memory: the user

program mode and boot mode. The following shows the differences between these modes.

Item

User Program Mode

Boot Mode

Execution of

application

program

The application program downloaded in the The application program

flash memory is executed. Reprogramming downloaded in the flash memory

the flash memory in user program mode

requires the reprogram processing to be

included in this application program in

advance.

is not executed. Instead, the on-

chip boot program in the F-ZTAT

microcomputer is executed.

Interface used for The user can select the interface according to Use the SCI. The F-ZTAT

reprogramming of the user system. Examples of available

microcomputer automatically

adjusts the communication rate.

The protocol is fixed.

flash memory

interfaces are the SCI and HCAN.

Transfer

The whole RAM area from H′FFE000 to

H′FFEFBF (4032 bytes) are available.

Transfer the program to RAM

address from H′FFE800 to

H′FFEFBF (1984 bytes).

destination of

program/erase

control program

Erase block

The user can select any block to erase. The The F-ZTAT microcomputer

user must provide the program that controls automatically erases all the

the erasing of the flash memory (erase

control program) and transfer it to RAM.

blocks.

Programming

Reprogramming is possible in units of erase Since all the blocks are erased,

blocks. Data can be programmed only for the the user must program data to the

erased blocks. The user must provide the

entire flash memory. The user

program that controls the programming of the must provide the program that

flash memory (program control program) and controls the programming of the

transfer it to RAM.

flash memory (program control

program) and transfer it to RAM.

Rev. 1.0, 03/03, page 76 of 78

Item

User Program Mode

Boot Mode

Method of mode

transition

Two methods are available:

Reset the system with the settings MD0 = 1, settings MD0 = 1, MD1 = 1, MD2

Reset the system with the

MD1 = 1, MD2 = 1, and FWE = 1;

= 0, and FWE = 1.

During execution with MD0 = 1, MD1 = 1,

MD2 = 1, and FWE = 0 in user mode, switch

the setting to FWE = 1. This method enables

reprogramming the flash memory without

resetting the user system.

9.3

How to Measure Application Time for E and P Bits

Erasing and programming the flash memory is implemented by setting the E and P bits in FLMCR

to apply a voltage. The hardware manual describes the voltage application time.

Setting too short application time for the E or P bit disables the erasing or programming. Setting

too long application time causes excessive erasing or excessive programming, which leads to the

permanent damage on the device. When setting the E and P bits, set up the on-chip watchdog

timer to prevent a program runaway.

The sample program in this application note controls the application time for the E and P bits by

adjusting the software loop count. Therefore, you need to increase or reduce the loop count

according to the operating frequency. You can obtain the time required for the software loop by

using calculation and simulator debugger. However, the application time for the E and P bits is so

important that we recommend you actually measure these bits from outside.

To measure the E and P bits, output high/low voltage for the E and P bits to the on-chip I/O port.

Output a signal to the on-chip I/O port at the same timing as setting the E and P bits to high and

low. Use an oscilloscope or logic analyzer to measure the output signal of the on-chip I/O port

from outside.

Source example: Output on/off of the P bit to the on-chip I/O port P00.

;======= WRITE pulse application =======================

BSET.B #0,@PORT0 ; Set bit 0 in port 0 to measure P bit

BSET.B #P,@ER6

; Set P bit (programming)

FWRT40 DEC.L #1,ER3

; Program time: 10 µS, 30 µS, or 200 µS

BNE

FWRT40:16

;=======================================================

MOV.W

@WLOOP5,E0

#P,@ER6

BCLR.B

; Clear P bit

#0,@PORT0 ; Clear bit 0 in port 0 to measure P bit

Rev. 1.0, 03/03, page 77 of 78

Rev. 1.0, 03/03, page 78 of 78

F-ZTAT Reprogramming by On-Chip CAN

Application Note

Publication Date: 1st Edition, March 2003

Published by:

Business Operation Division

Semiconductor & Integrated Circuits

Hitachi, Ltd.

Edited by:

Technical Documentation Group

Hitachi Kodaira Semiconductor Co., Ltd.

HD64F2636 [ETC]

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