2SD1898T100Q--Datasheet/数据表在线中文翻译

Application Notes

M16C/26A Group

Sample Program (Remote Control Transmission/Reception)

1. Summary

This sample program performs remote control transmission/reception by using the Renesas Starter Kit for M16C/26A

(R0K33026AS000BE).

Receiver

Received data

Transmitter

Transmitted data

The extension board used here is a product

from PI System Co., Ltd.

2. Introduction

The example described in this document applies to the microcomputers listed below:

Microcomputers: M16C26A

This sample program runs on the Renesas Starter Kit for M16C/26A (R0K33026AS000BE).

Prepare an extension board available for the Renesas Starter Kit or create a circuit similar to the one shown in the circuit diagram on page

15 and then connect it to the Starter Kit.

This program uses RSK_LIB. For details about RSK_LIB, see the RSK_LIB reference manual. (RSK_LIB is the library software provided

for use with the Renesas Starter Kit for M16C/26A.)

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3. Port Arrangement

The key matrix, infrared-ray transmitter/receiver and the buzzer are the facilities mounted on an extension board for the Renesas Starter

Kit. To use these facilities, connect an extension board to the Starter Kit.

LCD

LCD E

P74

P75

P76

P77

P91

P90

P63

keymatrix

LCD R

LCD D7

LCD D6

LCD D5

LCD D4

I R - T R A N S

R C V -

P62

P61

P60

-

P104

P105

P80/TA4OUT

P82/INT0

P106

P107

Xin

10MHz

M30260F8AGP

4. Remote Control Specification

4.1 Remote Control Format

10ms

Data section

Leader section

100ms

D0 D1 D2 D3 D4 D5 D6 D7 D0 D1 D2 D3 D4 D5 D6 D7

Inverted remote control data

Remote control data

Data section

Data “0”

Data “1”

1ms

3ms

Per-bit waveform

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4.2 Determination of the Leader and Data Sections

When the received waveform falls within one of the ranges shown below, it is determined to be a leader or a data section.

Leader section

Leader low-level

duration (10 ms)

8ms - 12ms

Leader pulse width (20 ms)

18ms - 22ms

Data section

Data “0”

(2ms)

Data “1”

(4ms)

3.0ms - 5.0ms

1.0ms - 3.0ms

4.3 Carrier Frequency

38.46kHz

13us 13us

26us

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5. Operational Outline

Each time a switch is depressed, the buzzer is sounded and remote control code is transmitted from the infrared LED.

The transmitted code is received in the remote control photodetector, and the received data is shown on liquid crystal display.

Liquid crystal display (LCD)

I R - T R A N

R C V - - - -

I R - T R A N

R C V - - 03

Remote control

photodetector

Infrared LED

M16C26A

Code: 00H

Remote control transmission

Remote control reception

The operation described above is accomplished using the following microcomputer facilities:

• Timer A0 (timer mode, main 2 ms cycle)

This timer counts 2 milliseconds using the main clock of the microcomputer as the count source.

It is used as the basic timer of RSK_LIB.

Time management, key scan and LCD display management are performed using this timer.

• Timer A4 (timer mode, carrier output)

This timer counts 26 microseconds using the main clock of the microcomputer as the count source.

It generates a carrier (frequency 38.46 kHz) that is output during transmission.

• Timer B0 (timer mode, remote control transmission “500 µs”)

This timer counts 500 microseconds using the main clock of the microcomputer as the count source.

It turns carrier output on and off in a 500 microsecond cycle to generate a remote control transmission waveform.

• Timer B2 (timer mode, remote control reception “250 µs”)

This timer counts 250 microseconds using the main clock of the microcomputer as the count source.

It generates remote control receive data from the port input level in a 250 microsecond cycle.

• Timer A1 (pulse modulation mode, buzzer output)

This timer outputs a waveform with different high and low pulse widths using the main clock of the microcomputer as the count source.

It is used to sound a buzzer each time a key is touched.

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6. Operational Specification

When a switch is depressed, the remote control code (hex code) corresponding to the switch and the inverted data (hex code) of the remote

control code are transmitted. While a switch is held down, data is transmitted successively at 100 millisecond intervals.

Note: In this program, pressing two or more switches at the same time has no effect (i.e., ignored).

(1) Immediately after the reset switch is depressed, the LCD

shows “-----.”

(1) Reset switch depressed

(2) While remote control code is being received, the LCD shows

the received code.

I R - T R A N S

* If the length of reception period is less than or equal to 500 ms,

the received code is displayed for 500 ms.

R C V

-

(2) Reception underway

(e.g., SW3 held down)

I R - T R A N S

R C V

0 1- F E

(3) 500 ms after reception

I R - T R A N S

R C V -

-

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Sample Program (Remote Control Transmission/Reception)

7. Definition of the RSK Functionality and the RSK_LIB APIs and Common Functions Used by

Remote Control Transmission/Reception

7.1 Definition of the RSK Functionality

RSKdefine.h file

In this application, the following functionalities (those shown in red) are set.

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

The boot information on CPU is defined

Usually, this mode is used

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

#define _CPU_M16C26A_NORMAL_MOD

/* Use in low power mode can be performed. */

//#define _CPU_M16C26A_32KHZ_MOD

/* Use of access of a flash can be performed. */

//#define _CPU_M16C26A_DATAFLASF_USE

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

The hardware function which RSK supports is chosen

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

#define _USE_KEY

#define _USE_BUZZER

//#define _OPTION_USE_AD

//#define _OPTION_USE_COM_RX

//#define _OPTION_USE_COM_TX

#define _OPTION_USE_INFRAEDRX

#define _OPTION_USE_INFRAEDTX

//#define _OPTION_USE_SW

//#define _OPTION_USE_LED

//#define _OPTION_USE_IO

Individual definition of each selected functionality

#if defined _USE_KEY

/* A key matrix continues pushing and existence is defined.*/

/*When not using

-USE_KEY_CONTINU is made a comment. */

#define _USE_KEY_CONTINU

#if defined _USE_KEY_CONTINU

Continuous key depressions are accepted.

#define _CONTINU_SW1 _KEY_CONTEINU_ON

#define _CONTINU_SW2 _KEY_CONTEINU_ON

#define _CONTINU_SW3 _KEY_CONTEINU_ON

#define _CONTINU_SW4 _KEY_CONTEINU_ON

#define _CONTINU_SW5 _KEY_CONTEINU_ON

#define _CONTINU_SW6 _KEY_CONTEINU_ON

#define _CONTINU_SW7 _KEY_CONTEINU_ON

#define _CONTINU_SW8 _KEY_CONTEINU_ON

#define _CONTINU_SW9 _KEY_CONTEINU_ON

#define _CONTINU_SW10 _KEY_CONTEINU_ON

#define _CONTINU_SW11 _KEY_CONTEINU_ON

#define _CONTINU_SW12 _KEY_CONTEINU_ON

#define _CONTINU_SW13 _KEY_CONTEINU_ON

#define _CONTINU_SW14 _KEY_CONTEINU_ON

#define _CONTINU_SW15 _KEY_CONTEINU_ON

#define _CONTINU_SW16 _KEY_CONTEINU_ON

#else

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7.2 APIs and Common Functions Used

ApiStatusType RL_SetTimerReq( unsigned int TimerValue, char TimerMode, int *TimerNo, int *ERcode );

ApiStatusType RL_StartTimer( int TimerNo, int *ERcode );

ApiStatusType RL_CheckTimer( int TimerNo, int *ERcode );

ApiStatusType RL_Get_Key( int *Inkey, int *ERcode );

ApiStatusType RL_Getc_Ir( int *IrCode, int *ERcode );

ApiStatusType RL_Putc_Ir( int IrCode, int *ERcode );

ApiStatusType RL_Start_Buzzer( char freqNo, int *ERcode );

ApiStatusType RL_Stop_Buzzer( int *ERcode );

ApiStatusType RL_Putc_Lcd( char Ylocation, char outc, int *ERcode );

ApiStatusType RL_Puts_LcdLoc( char Xlocation, char Ylocation, char RvTime, const char far* outc, int

*ERcode );

ApiStatusType RL_Putc_LcdLoc( char Xlocation, char Ylocation, char RvTime, char outc, int *ERcode );

void RL_ErrorHook( int FuncNo, int ErrorNo );

For details about the APIs and common functions used by the sample program (remote control transmission/reception), see the

Renesas Starter Kit Library V.1.00 Reference Manual.

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8. Flowchart

Remote control

transmission/recept

Clear display on LCD

Show the initial screen

Request timer setup

Start timers

Input keys

Process buzzer

NO

Keys input?

YES

Transmit key code

Check reception

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9. Tutorial

1

Launch the HEW by double-clicking its icon.

2

Change the session name from “default Session” to “SessionM16C_E8_System.”

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3

Select “M30260F8A” for Device.

Select “Download emulator firmware” for Mode.

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Check the box labeled “Power supply is carried out. (MAX 300mA)” and then select “5.0V.”

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4

In the program and the work RAM text boxes of Firmware Location Address, enter “FA0” and “0B8” respectively.

Leave the box labeled “Debug a program using the WDT” unchecked.

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5

Choose Download from the Debug tab and download a module.

The upper-side choices for Download show the location from which a project was downloaded.

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6

Click “Start after Reset” to start program execution.

7

Please do "Cancellation" when "The file is opened" window opens.

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10. Circuit Diagram

11. Part List

Part name

Part No.

U1

Q’ty

1

Manufacturer

SHARP

Type number

Value

Remark

38kHz

Remote control

photodetector

Infrared LED

Transistor

GP1UM281YK

LED1

Q1

1

Panasonic

ROHM

LNA2801L

1

2SD1898T100Q

B3FS-1000P

1A/0.5W

Tact switch

SW1 -

SW16

D2～D5

C1

16

OMRON

Switching diode

Electrolytic capacitor

Chip resistor

4

1

ROHM

1SS355TE-17

Panasonic

ROHM

ECE-V1HS010SR

MCR10EZHF470

MCR10EZHF561

ERJ-1TRQJ6R8U

1uF/50V

47

R1

1/8W, 1%(5% also acceptable)

1W,5%

Chip resistor

R2

ROHM

560

Chip resistor

R5

Panasonic

6.8

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12.

Web Sitet

Renesas Technology Web site

http://www.renesas.com/

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Revision History

Content of revision

Points

Rev.

Date of issue

Page

1.00

1.10

2006.06.30

2007.12.03

-

First revision issued

RSK_LIB APIs supported

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