Maxim Integrated MAXQ20-Based Microcontroller Bootloader Command Reference - Manual (Page 10)

MAXQ20-Based Microcontroller Bootloader Command Reference
10
Family 4 Commands—Verify Variable Length
Command 40h—Verify Code Variable Length
Byte1 Byte2 Byte3 Byte4
(Length)
Bytes
Byte
Length+5
Byte
Length+6
Input 40h Length AddrL AddrH Data to verify 00h 00h
Output 03Eh
This command operates in the same manner as the “Load Code Variable Length” command, except that instead
of programming the input data into flash memory, it verifies that the input data matches the data already in code
space. If the data does not match, the status code is set to reflect this failure.
The Get Status command must be executed after any verify command to determine if the verify was successful.
Command 41h—Verify Data Variable Length
Byte1 Byte2 Byte3 Byte4
(Length)
Bytes
Byte
Length+5
Byte
Length+6
Input 41h Length AddrL AddrH Data to verify 00h 00h
Output 03Eh
This command operates in the same manner as the “Load Data Variable Length” command, except that instead
of writing the input data into data SRAM, it verifies that the input data matches the data already in data space. If
the data does not match, the status code is set to reflect this failure.
The Get Status command must be executed after any verify command to determine if the verify was successful.