GU180X32D-K610A4 [ETC]

Dot Graphic VFD Module; 点阵图形VFD模块


型号：	GU180X32D-K610A4
厂家：	ETC
描述：	Dot Graphic VFD Module 点阵图形VFD模块
文件：	总7页 (文件大小：219K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Dot Graphic VFD Module

GU180x32D-K610A4

microcontroller, character generation, interface logic and patented

transformerless DC/DC converter. The interface type is selected by

a pushbutton on the back of the module. Auto key scanning and

general I/O is available on port PA0 – PA7. RS232/RS485 options.

ꢀ

180 x 32 High Brightness Dot Graphic Display

Single 5V DC Supply

The module includes the VFD glass, VF drivers and

3 ASCII Fonts ( 5 x 5, 5 x 7, 10 x 14)

Asynchronous, SPI & Parallel interfaces

Wide Temperature –40 to +85°C

2.5

24.0 31.0

13.95

6.58

CON4 CON3

CON2

1.6

6.4

CON1 3.5

3.5

19.7

18.25

79.05

117.0

124.0

Dimensions in mm & subject to tolerances.

Mounting holes 3.5mm dia.

CON3 & CON4 are not to be used in this

implementation.

CHARACTER SETS

ELECTRICAL SPECIFICATION

MINI FONT (PROPORTIONAL SPACING)

5x7 & 10x14 FONTS (FIXED SPACING)

Parameter

Sym

Vcc

Icc

Min

4.5

Typ

Max

Unit Condition

Supply Voltage

Supply Current

Logic High Input

Logic Low Input

Logic High Output

Logic Low Output

5.0

5.25

VSS=0V

350

Vcc=5V All dots

VCC=5V

VIH

3.0

-0.5

4.2

Vcc

1.5

VIL

VCC=5V

VOH

VOL

IOH = -3mA Vcc=5V

IOL = 20mA

0.6

ENVIRONMENTAL and OPTICAL SPECIFICATION

Parameter

Value

Display Area (XxY mm)

Dot Size/Pitch (XxY mm)

Luminance

79.05 x 13.95

0.29 x 0.29/0.44 x 0.44

1000 cd/m²Typ

Colour of Illumination

Operating Temperature

Storage Temperature

Operating Humidity (non condensing)

Blue-Green (Filter for colours)

-40LC to +85LC

10 to 90% @ 25°C

SOFTWARE COMMANDS

Hex

Command

Run Macro

Backspace

Horizontal Tab

Line Feed

Hex

Command

01-07

Reset

1A + data

Write Mode - direction

1B + macro+len+data Set Macro

1B + 4D

1B + 4C/55

1B + 43

Erase All Macros

Home

Lock/Unlock EEPROM

Request Checksum

Power On/Off

Vertical Tab

Carriage Return

Clear End of Line

Test

CON1

CON2

1B + 50/46

1B + 48/42

1B + 49 + data

1B + 44 + data

1B + 4F + data

1B + 52

Pin Async SPI

Signal

Enable/Disable Hex Write

Set Comms

SCK

ENABLE

PA0

10 + x + y

11 +xl+yt+xr+yb

12 +xl+yt+xr+yb

13 +xl+yt+xr+yb

14 +xl+yt+xr+yb

15 +xl+yt+xr+yb

Cursor Position

Set Area

Enable I/O Port

Set Port Lines

RXD /SS

SIN

PA1

Clear Area

Invert Area

Set Outline

Clear Outline

Set Pixel

Read Port

PA2

1B + 4B

1B + F8-FF

1C / 1D / 1E

Enable key scanning

Brightness

SOUT

/IRQ

PA3

TXD

PA4

Select Font

/RES /RES

PA5

1F +xl+yl+xr+yb+data Graphic Area Write

PA6

Clear Pixel

Graphic Write

20 - FF

Character Write

10 HB

PA7

^*1Applies to version 3 software only.

Nc = Do Not Connect

18 + len + data

CONTACT

The module defaults to a 4 line of 30 character display using the 5x7 font with single pixel

spacing. The cursor position auto increments after each character write. The bottom left of a

character is placed at the cursor x,y. The M(odule) Busy line indicates the module is busy

when high. Connect the H(ost) Busy input to the MBusy to disable handshaking. Use the

button to select the configuration which is then stored in EEPROM. To send commands as

hexadecimal, prefix the 2 bytes using character 60H. Example: `10`3F`01 = Position dot x=64

y=1. To send character 60H to the display, send 60H twice.

Detailed

specification,

Noritake Sales Office Tel Nos

Nagoya Japan: +81 (0)52-561-9867

Canada: +1-416-291-2946

software commands

and interface timing

are available on

request.

Chicago USA: +1-847-439-9020

Munchen (D): +49 (0)89-3214-290

Itron UK: +44 (0)1493 601144

Rest Europe: +49 (0)61-0520-9220

www.noritake-itron.com

Subject to change without notice. Doc Ref: 03872 Iss7 10 July 03

NORITAKE ITRON VFD MODULES

GU180x32D-K610A4

Dot Graphic VFD Module

GU180x32D-K610A4

SOFTWARE COMMANDS

Instruction

Data Format

Description

Macro Start

01H - 07H

Start user defined macro 1-7.

(BUSY time depends on contents)

Backspace

08H

09H

0AH

0BH

0CH

Non destructive backspace. Cursor is moved left by the width of the currently select font. If the cursor is at the

left end of the display, no cursor movement is made.

(50ꢀs)

Horizontal Tab

Cursor is moved right by the width of the currently select font. If the cursor is at the end of the display, no

cursor movement is made.

(50ꢀs)

Line Feed

Moves the cursor down by the height of the currently selected font. If the cursor is at the bottom of the display,

no cursor movement is made.

(50us)

Home

Moves the cursor horizontal position to 00H, the vertical positioning is dependent on the currently selected

font, allowing for immediate character writing in the top-left corner of the display.

Moves the cursor up one character row. If the cursor is at the top of the top end of the display, no cursor

movement is made.

(50us)

Vertical Tab

(50us)

Carriage Return

0DH

0EH

0FH

Moves the cursor horizontal position to 00H. The vertical position is unchanged.

(50us)

Clear EOL

Clear all characters from the current cursor position to the end of the display.

(2.5ms)

Test

Place module into self-test mode. The module will repetitively show a few test screens. The test mode will

(50ꢀs)

stop on the next received byte.

Set the cursor position.

Cursor Position

10H + xpos + ypos

(50us)

Set Area

11H + xleft + ytop + xright + ybot Fill specified area. All dots within the specified area are illuminated. Please note that the cursor position is

(50us + 1ms [last byte])

affected with this command.

Clear Area

12H + xleft + ytop + xright + ybot Clear specified area. All dots within the specified area are cleared. Please note that the cursor position is

(50us + 1ms [last byte])

affected with this command.

Invert Area

13H + xleft + ytop + xright + ybot Invert specified area. All dots within the specified area are inverted. Please note that the cursor position is

(50us + 1ms [last byte])

affected with this command.

Set Outline

14H + xleft + ytop + xright + ybot Draw box outline. All dots within the specified outline are unchanged. Please note that the cursor position is

affected with this command.

(50us + 1ms [last byte])

Clear Outline

15H + xleft + ytop + xright + ybot Clear box outline. All dots within the specified outline are unchanged. Please note that the cursor position is

affected with this command.

(50us + 1ms [last byte])

Set Pixel

16H

Illuminate a single pixel at the current cursor position.

(50us)

Clear Pixel

17H

Clear a single pixel at the current cursor position.

(50us)

Graphic Write

18H + len + data

Write graphical data, length len, direct to display. See write mode command (1AH) for graphic orientation and

cursor movements.

(50us + 250us [each data byte])

Reset

19H

Resets display to power-on defaults: - Display is cleared. 5x7 font selected. Write Mode = 00H

Brightness Level = 7. VFD Power = On.

(500us)

Write Mode

1AH + data

Bit 7 = graphic data orientation - 0 = horizontal, 1 = vertical (default = horizontal)

Bit 6 = cursor movement - 0 = horizontal, 1 = vertical (default = horizontal)

Bit 5 = cursor direction - 0 = forward, 1 = backwards (default = forwards)

Bit 4 = underscore cursor - 0 = off, 1 = on (default = off)

(50us)

Bit 3 = underscore cursor - 0 = static, 1 = flash (default = static)

Bit 1/0 = pen type - 00 = overwrite, 01 = AND, 02 = OR, 03 = XOR (default = overwrite)

Send macro data to EEPROM. macro = 00H - 07H. Macro0 is executed at power-up only. A maximum of 480

bytes is allowed for macro data. The display may flicker whilst writing macro data.

Set the display brightness. level = F8H - FFH. F8H = display off. F9H = minimum, FFH = maximum (default).

Set Macro

1BH + macro + len + data

(50us)

Brightness

1BH + level

(50us)

Erase Macros

1BH + 4DH

Clear all downloaded macros in EEPROM. Screen may blank momentarily while macro data is being erased.

(80ms)

Lock/Unlock EEPROM

1BH + 4CH / 55H

All data contained within the non-volatile EEPROM is locked (4CH), and no changes are possible until the

unlock command 55H is executed.

(50us + 10ms [last byte])

Checksum

1BH + 43H

All data received is added to the checksum. This command will read the lower 8-bits of that checksum, before

being cleared. Please note that the checksum is cleared when executing the test mode.

50H = Turn on VFD power supply (default).

(50us)

Power On/Off

1BH + 50H / 46H

1BH + 48H / 42H

1BH + 49H + data

(50us)

46H = Turn off VFD power supply, display’s contents will be preserved.

48H = Enable hex receive mode, character 60H is interpreted as a hexadecimal prefix.

42H = Disable hex receive mode. Hex mode is enabled at power up.

Set asynchronous communication baud rate and parity. Takes effect at power-up or hardware reset.

Bit 7 = Automatic I/O send (0=off, 1=on). Bits 1&0 = baud rate (00=4800, 01=9600, 02=19200, 03=38400).

Bit 2 = Parity (1=even, 0=none) (factory default = 19200 with no parity, automatic I/O send is off)

Set I/O port direction. A ‘1’ indicates an input, a ‘0’ an output. All output lines are immediately set low. All input

lines have their pull-ups enabled. This value is stored in EEPROM and will automatically be set at power up.

Set Output lines on I/O port, a ‘1’ will set 5V on the output ports, or enable the pull-ups on the inputs.

Hex/Binary Mode

(50us)

Set ASYNC comms

(50us + 10ms[last byte])

Enable I/O Port

1BH + 44H + data

(50us + 20ms[last byte])

Set Port Lines

1BH + 4FH + data

1BH + 52H

(50us)

Read Port

Read current I/O port status. A single byte is transmitted showing the current state of the I/O lines.

(50us)

Enable Key Scanning

1BH + 4BH

Set I/O port to key scanning. The I/O ports are continuously scanned for any key press. This mode is stored in

EEPROM and will automatically be selected at power up.

Select font. 1CH = proportional mini font. 1DH= fixed spaced 5x7 font. 1E = fixed spaced 10x14 font.

(50us + 10ms[last byte])

Select Font

1CH / 1DH / 1EH

(50us)

Graphic Area Write

1FH + xl + yt + xr + yb + data

Write graphic data within defined area. See write mode command (1AH) for graphic orientation and cursor

movements. Note: This command is available on software version 3 only. Press setup button to view.

Write to the display module using a 2-byte hexadecimal number. dhH = high nibble, dlH = low nibble. E.g.

Sending `19 will reset the display.

(50us + 250us [each data byte])

Hex Prefix

60H + dhH + dlH

20H - FFH

(50ꢀs + 50us command BUSY)

Character Write

Display character from selected font.

(400us)

Notes: -

Busy times are not inclusive of a 100us scan period, this must be taken into consideration. If the cursor is enabled, busy times will increase by a further 50us.

All coordinates are absolute. The origin (00H, 00H) is the top left of the display. All data shown is in hexadecimal format.

NORITAKE ITRON VFD MODULES

GU180x32D-K610A4

Dot Graphic VFD Module

GU180x32D-K610A4

GU180x32D-K610A4 SETUP

The VFD module features two serial ports (synchronous & asynchronous) and a parallel port, all interfaces are TTL compatible. Interface

selection/set-up can be made using the single push button switch on the back of the module. Pressing the switch for the first time will display the

initial configuration menu. On each subsequent switch press the menu pointer will advance. The current menu item will be selected if the switch is

not pressed within 2 seconds.

To select the required interface, press the switch until the ‘COMMS’ item has been selected.

Wait 2 seconds for the communication menu to be displayed. Press the switch until the required

interface is selected. The factory default interface is SPI.

Wait another 2 seconds to display the related communication settings. The current configuration is

displayed first.

Interface selection example.

SYNCHRONOUS SERIAL COMMUNICATION

With synchronous communications enabled, data can be clocked into the VFD module using the rising or falling edge of SCK. This is selectable by

the push switch on the rear of the module, which also sets the data order. By default, data is clocked in on the rising edge with the most significant

bit sent first. The host must provide adequate delays for the module to process the data, these busy times are specified in the software command

section. Alternatively the host can monitor the MB (Module Busy) line.

>125ns

tBUSY + 10us

SIN

SOUT

SCK

/SS

/RES

I/O

/SS

>65ns

>125ns

HOST

GU180x32D-K610A4

VDD GND

SCK (RISING)

SYSTEM

SCK (FALLING)

GND VDD

SIN (D7-D0)

SIN (D0-D7)

<10us

The /SS pin can be used as an enable pin if other devices are

connected to the serial line, and also allows byte synchronisation.

TTL Synchronous serial communication.

The use of the /SS line is optional, and can be permanently pulled

low if required.

ASYNCHRONOUS SERIAL COMMUNICATION

The asynchronous communication speed and parity can be set with the push switch on the rear of the module, or with the ‘UART SETUP’

command. The default settings are 19200 baud with no parity. Again the host most provide adequate delays for the module to process the

command and data. The module busy line (MB) will go high when data is currently being processed.

<10us

tBUSY

START

PARITY

STOP

RXD

TXD

RXD

I/O

RXD

TXD

/RES

HOST

GU180x32D-K610A4

VDD GND

SYSTEM

TTL Asynchronous serial communication from host system to VFD module.

>2us

GND VDD

START

PARITY

STOP

TXD

The host busy line (HB) stops the module from sending data to

the host until the line falls. The use of the HB and MB lines are

optional, and can be connected together if not required.

TTL Asynchronous serial communication from VFD module to host system.

PARALLEL COMMUNICATION

The 8 I/O lines can be configured as a slow parallel interface. Data on PA0-7 is clocked into the module with the Enable line, this can be set to

either a rising or falling edge trigger by the push switch on the back of the module. The host must keep the data stable for the time period indicated

in the timing diagram. The module busy line (MB) can be used in parallel communication mode.

>125ns

ENABLE (RISING)

I/O

PA0-7

HOST

GU180x32D-K610A4

VDD GND

ENABLE (FALLING)

D0 - D7

SYSTEM

I/O

ENABLE

>125ns

>250ns

DATA

<10us

GND VDD

tBUSY

Parallel Communication.

NORITAKE ITRON VFD MODULES

GU180x32D-K610A4

Dot Graphic VFD Module

GU180x32D-K610A4

RESET TIMING

>50ns

/RES

The module is reset when a low-level signal is applied to the /RES line. This will cause the

module to clear the display, initialise the communication settings and set all power-up

defaults. During this initialisation period, the user must delay any transmission to the module.

30ms

DATA

I/O level change interrupt.

KEYBOARD CONTROL

All 8 I/O lines can be configured to scan a key matrix with up to 16 keys. The 1BH + 4BH command will configure the I/O lines to key scan

mode. The I/O port status will indicate the row/column position of the pressed key. The ENABLE line acts as hardware scan enable input, and

should be tied to ground.

The following example enables the key-scanning mode and the automatic I/O send when

using asynchronous communications.

PA0

PA1

PA2

PA3

ENABLE KEY SCANNNG

AUTOMATIC I/O SEND

1BH 4BH

1BH 49H 82H

S10

S14

S11

S15

S12

S16

GU180x32D

-K610A4

On each key press, the I/O port status will be sent out of the asynchronous

communication port. e.g. pressing key switch 1, the module will send 03H to the host

system.

When using synchronous serial communication, the /IRQ line will indicate when a key

has been pressed, the host should then issue a ‘Read Port’ command to determine the

I/O port status.

S13

PA4

PA5

PA6

PA7

ENABLE

I/O CONTROL

The module contains simple Input and Output functions for the 8 I/O lines (PA0-PA7). All inputs include an

optional pull-up resistor, 30K-120K in value. The outputs can source ~5mA and sink ~30mA.

The following example sets up the I/O lines to control the 2 LED’s and provide a pull-up resistor for the

switch.

VDD

ENABLE I/O MODE

P0/1 = OUT, P7 = IN

SET I/O LINES

ENABLE P7 PULL-UP, TURN ON LED1&2

GU180x32D-

K610A4

LED1

LED2

1BH 44H 80H

1BH 4FH 80H

PA0

PA1

With asynchronous communications enabled, the status of PA0-PA7 can be transmitted when a change in

level is detected on any pin. This automatic response mode can be enabled by using the ‘UART SETUP’

command. When this mode is enabled, the VFD module can reliably check port changes every 15ms. With

auto send disabled (default) a manual read command is required to determine the port status.

PA7

GND

SW1

READ PORT

SW1 CLOSED

SW1 OPEN

RESPONSE

1BH 52H

00H

80H

< 15ms

> 1us

/IRQ

When using synchronous serial communications, the host can detect

a level change with the /IRQ line on CON1. This allows the host to

poll the port status only when needed.

PA0 - PA7

I/O level change interrupt.

I/O WRITE

I/O READ

~400ns

When I/O control is used, the Enable line can be used as an active low

read or write strobe. With the I/O read command, the enable line will

clock before the module reads the I/O port status. With the I/O write

command, the enable line will clock after the I/O lines have been set.

ENABLE

<250ns

PA0 - PA7

I/O Write & Read.

NORITAKE ITRON VFD MODULES

GU180x32D-K610A4

Dot Graphic VFD Module

GU180x32D-K610A4

DISPLAYING TEXT

0,0

The module contains 3 font sizes, a proportional mini-font, 5x7 pixel, and a 10x14 pixel font.

Characters of any size can be written to any part of the display. All data sent to the module from

20H to FFH is treated as character data. Characters are positioned above the current cursor

position, see Fig1. Each character written will include a one pixel space on the right side of the

character. After each character is written to the display, the cursor position is automatically

advanced. If the cursor position reaches the end of the display, the host must reposition to the

next line.

0,7

6,7

The following example displays two text messages in the center of the display.

Cursor Positioning, example of writing 2 characters

from cursor position 0,7.

5x7 FONT

SET CURSOR

DISPLAY TEXT

SET CURSOR

DISPLAY TEXT

1DH 10H 30H 0FH ‘NORITAKE ITRON’

10H 39H 17H ‘VFD MODULES’

The next example displays one line of text using the 10x14 font.

Displaying text in the small 5x7 font.

10x14 FONT

SET CURSOR

DISPLAY TEXT

1EH 10H 39H 17H ‘180x32’

The module can display a cursor to aid character positioning and text input. The

size of the cursor depends upon the currently selected font, and can be set to flash

or remain static.

Displaying text in the large 10x14 font.

5x7 FONT

SET CURSOR

DISPLAY TEXT

ENABLE FLASHING CURSOR

1DH 10H 0DH 0EH ‘ENTER NAME: ’ 1AH 18H

Using the cursor to aid user input.

DISPLAYING GRAPHICS

Graphical images can be displayed on the VFD module in either a horizontal or vertical byte orientation. After each graphical data write, the cursor

is automatically advanced, depending upon the direction selected in the ‘Write Mode’ command. The most significant bit is positioned to the top

(vertical data) or to the left (horizontal data).

MSB

1CH

5CH

48H

3EH

1DH

14H

36H

The following example displays a simple graphical image using horizontal graphic data. The write mode

is first set to horizontal data format, with a vertical cursor movement. The cursor is positioned before

sending the 8 byte of graphical data using the graphics command.

SET HORIZONTAL WRITE MODE

Graphic Image using horizontal data

SET CURSOR

GRAPHIC WRITE

LENGTH

GRAPHIC DATA

MSB

1AH 40H 10H 3AH 0CH 18H 08H

1CH 5CH 48H 3EH 1DH 1DH 14H 36H

The next example displays a simple graphical image using vertical graphical data. The write mode is

first set to vertical data format, with a horizontal cursor movement. The cursor is positioned, then the

top 20 bytes are sent using the graphic write command. The cursor is then repositioned to send the

bottom 20 graphical bytes.

SET VERTICAL WRITE MODE

SET CURSOR

GRAPHIC WRITE

LENGTH

GRAPHIC DATA

Graphic Image using vertical data

1AH 80H 10H 62H 08H 18H 14H 00H 00H 00H 00H 07H 04H C7H FEH 72H 73H

32H 3EH 3FH 1DH 00H 00H 00H 00H 00H 00H

10H 62H 10H 18H 14H 00H 3CH 42H 81H B9H C1H 42H 7CH 20H D8H

FCH 3CH FCH CAH 49H B1H 89H 42H 3CH 00H

The graphic area write command 1FH uses top-left and bottom-right XY co-ordinates to define an

area to which graphical data bytes will be written. The orientation is set-up using the write mode

command 1AH. Unused bits are masked where the screen area is not a byte multiple.

Displaying graphic images in vertical and horizontal format.

NORITAKE ITRON VFD MODULES

GU180x32D-K610A4

Dot Graphic VFD Module

GU180x32D-K610A4

AREA COMMANDS

The VFD module contains commands to fill, clear and invert defined areas of the display. Also an outline command is available to draw rectangles

around objects.

The following example displays three options for the user to select, each option is contained within a box with a shadow effect. Drawing horizontal

and vertical line using the fill area command creates the shadow effect.

SET CURSOR

DISPLAY OPTIONS

10H 21H 13H ‘SETUP’

10H 4AH 13H ‘PRINT’

10H 79H 13H ‘RUN’

Display options with simple text write.

BOX OUTLINE

TOP LEFT

BOTTOM RIGHT

14H 1BH 0AH 41H 14H

14H 45H 0AH 6BH 14H

14H 6FH 0AH 95H 14H

Boxes created using the ‘Set Outline’ command.

SET AREA

HORIZONTAL LINE

FILL AREA

VERTICAL LINE

11H 1CH 15H 42H 15H

11H 46H 15H 6CH 15H

11H 70H 15H 96H 15H

11H 42H 0BH 42H 15H

11H 6CH 0BH 6CH 15H

11H 96H 0BH 96H 15H

Drop Shadows created with the ‘Set Area’ command.

The next example uses the invert area command to select one of the options.

INVERT AREA

TOP LEFT

BOTTOM RIGHT

13H 70H 0BH 94H 13H

Option ‘Run’ selected with the ‘Invert Area’ command.

WRITE MODES

By default, display data that is overwritten will be cleared prior to displaying any new data. This display data can be maintained whilst writing by

selecting the ‘OR’ mode with the ‘Write Mode’ command, this will effectively merge the old data with the new. The ‘AND’ write mode will only display

written data if existing data is present on the display. The other ‘Write Mode’ is ‘XOR’ which can be useful for writing text on an inverted display.

The following example uses the XOR mode to write text on a full display.

WRITE MODE

XOR MODE

SET AREA

TOP LEFT

BOTTOM RIGHT

11H 00H 00H B3H 1FH

1AH 03H

10H 33H 13H ‘INVERETED TEXT’

Displaying inverted text using the ‘Write Mode’ command.

This next example uses the XOR mode to display the percentage completed on

a progress bar.

WRITE MODE

XOR MODE

10H 41H 0DH ‘PROGRESS’

14H 00H 12H B3H 1CH

11H 00H 12H 58H 1CH

1AH 03H

10H 54H 1BH ‘50%’

Using inverting text for displaying progress level.

NORITAKE ITRON VFD MODULES

GU180x32D-K610A4

Dot Graphic VFD Module

MACROS

GU180x32D-K610A4

A string of data and commands can be sent to the module and stored in non-volatile EEPROM by using the macro feature. This string of data and

commands can then be executed by using just one command. Up to 8 macros can be used at any one time, one of these is executed at power-up.

This example uses the first macro (Macro 0) to display an initial message at power-up.

WRITE TO MACRO-0

LENGTH

POWER-UP MESSAGE

1BH 00H 24H 10H 39H 0DH ‘PLEASE WAIT’

10H 21H 19H ‘INITIALISING SYSTEM’

Power-Up message using Macro 0.

This next example saves the previous graphic icon into Macro 1, and then is used as a user-defined character.

WRITE TO MACRO-1

LENGTH

GRAPHIC DATA

1BH 01H 0CH

1AH 40H 18H 08H 1CH 5CH

48H 3EH 1DH 1DH 14H 36H

SET CURSOR

DISPLAY ICON

SET CURSOR

DISPLAY ICON

10H 0FH 09H 01H

10H 3EH 12H 01H

10H 9BH 08H 01H

10H 5FH 18H 01H

Using Macros as user-defined characters.

This example creates a display template, which can be helpful if many screens require the same look.

WRITE TO MACRO-2

LENGTH

RESET

AREA COMMANDS

19H 14H 02H 02H B1H 1DH

11H 00H 1BH 04H 1FH

11H AFH 1BH B3H 1FH

11H 00H 00H 04H 04H

11H AFH 00H B3H 04H

1BH 02H 1BH

DISPLAY TEMPLATE

SET CURSOR

DISPLAY MESSAGE

02H 10H 37H 13H ‘SYSTEM READY’

Using Macros as a screen template.

EEPROM PROTECTION

The EEPROM contains information such as macro data, asynchronous communication settings and I/O configuration. So it is important to protect

this information from stray commands due to communication failures. To protect the EEPROM, the module contains a ‘EEPROM Lock’ command

(1BH + 4CH). Once this command is issued, no further EEPROM updates can be made until it is unlocked (1BH + 55H). This feature is also

accessible from the set up menu, using the push button switch on the rear of the module.

USING THE CHECKSUM

All data written to the module is added to an internal checksum. The lower 8-bits of this checksum can be read at any time from the module by the

host system to confirm accurate data transfer. It is up to the user if or when this feature should be used. The checksum is cleared at power-up and

after each checksum read.

Example: Read checksum at power-up, or directly after it has been cleared.

READ CHECKSUM

CHECKSUM

SENT TO HOST

1BH 43H

5EH

Example: Read checksum after data has been written to the display.

WRITE DATA

READ CHECKSUM

CHECKSUM

SENT TO HOST

19H 31H 32H 33H 1BH 43H

0DH

NORITAKE ITRON VFD MODULES

GU180x32D-K610A4

GU180X32D-K610A4 [ETC]

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GU1A

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