Matrix Orbital GTT70A - Manual (Page 13)

9 Command Summary
1.6 Read
ScratchPad Dec
Hex
ASCII 254 205
FE CD
ю Н
Index Length
Index Length
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
Channel
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
0 None
1 Serial
2 I2C
3 USB
4 CAN
5 SPI
255 Current
2.3 Set Baud
Rate Dec
Hex
ASCII 254 57
FE 39
þ 9
BaudRate
BaudRate
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.