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17 miscellaneous – Matrix Orbital GLK24064-25 User Manual

Page 58

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Command Summary

53

6.17 Miscellaneous

17.1 Write
Customer Data

Dec
Hex
ASCII

254 52

FE 34

■ 4

Data
Data
Data

v8.0

Saves a user defined block of data to non-volatile memory. Useful for storing display information for later use.

Data

Byte [16]

User defined data.


17.2 Read
Customer Data

Dec
Hex
ASCII

254 53

FE 35

■ 5

v8.0

Reads data previously written to non-volatile memory. Data is only changed when written, surviving power cycles.

Response

Byte [16]

Previously saved user defined data.


17.3 Write to
Scratchpad

Dec
Hex
ASCII

254 204

FE CC

■ ╠

Address Length Data
Address Length Data
Address Length Data

v8.3

Write information to a 256 byte volatile memory bank for later use.

Address

Short

Address where data is to be saved in volatile memory. Value between 0 and 256.

Length

Short

Length of data to be saved, in bytes. Value between 0 and 256, address limited.

Data

Byte(s)

Data to be saved in volatile memory.


17.4 Read from
Scratchpad

Dec
Hex
ASCII

254 205

FE CD

■ ═

Address Length
Address Length
Address Length

v8.3

Read information previously saved in 256 byte volatile memory bank.

Address

Short

Address where data is saved in volatile memory. Value between 0 and 256.

Length

Short

Length of data to be read, in bytes. Value between 0 and 256, address limited.

Response

Byte(s)

Data saved at the specified location in volatile memory.


17.5 Read Version
Number

Dec
Hex
ASCII

254 54

FE 36

■ 6

v8.0

Causes display to respond with its firmware version number. Test.

Response

Byte

Convert to hexadecimal to view major and minor revision numbers.



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