Matrix-orbital GTT70A Manual de usuario descargar pdf (Pagina 13)

9 Command Summary

1.6 Read

ScratchPad

Dec

Hex

ASCII

254 205

FE CD

þ Í

Index Length

2.0

Read data previously stored in a specific section of volatile memory.

Index

Short

Starting index of the data to be read.

Length

Short

Length of the data requested.

Return Message

252 205 Length

Length Result

Length

Short

Length of the data to be transferred, in bytes.

Result

Byte(s)

Data read from specified location in volatile memory.

2.2 Communication

2.1 Enter Mass

Storage Mode

Dec

Hex

ASCII

254 4

FE 04

þ [EOT]

2.0

Force the display to enter mass storage mode. Useful for programmatically initiating a file transfer.

2.2 Set

Communication

Channel

Dec

Hex

ASCII

254 5

FE 05

þ [ENQ]

Channel

2.0

Set the default communication channel to be used for event driven data transmission; keypad or touch messages,

for example. The GTT will always answer user driven requests on the same channel they were transmitted.

Channel

Byte

Communication channel type, as per eChannel values.

Table 11: eChannel values

Value

Description

None

Serial

I2C

USB

CAN

SPI

255

Current

2.3 Set Baud

Rate

Dec

Hex

ASCII

254 57

FE 39

þ 9

BaudRate

2.0

Change the serial data rate used by the module. The change is implemented immediately after the last parameter

byte has been received. Baud rate will reset to 115,200 on power up unless otherwise defined in the autoexec file.

Serial command only.

BaudRate

Integer

The desired baud rate value.

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 52 53

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Matrix-orbital GTT70A Manual de usuario Pagina 13

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