DA14531 prod_test otp_write function issue

ID: LPCBARESDK-678

Status: Open

First reported: 6.0.14.1114

Fixed in: TBD

Description

Different pre-compiled binary files of the prod_test firmware are provided in the SDK: \DA145xx_SDK\6.0.14.1114\binaries\da145xx\prod_test.

Together with the prod_test.exe command line tool the user can write values into the OTP of the IC (DA145xx_SDK\6.0.14.1114\binaries\host\windows\prod_test_cmds).

For instance:

> prodtest -p 3 otp_write 7DA8 1234A5A5 A5A51234

This command is supposed to write 2 words into OTP header location 0x7DA8 but the user will notice only the first word is written and the second is not.

Workaround

Write only one word at the time.