topic Re: EEPROM data question in S12 / MagniV Microcontrollers

EEPROM data question

gumu — Fri, 16 Jun 2023 08:31:11 GMT

Hi NXP team,

I have a question about EEPROM data.

the platform is mm9z1-638.

I have wrote a data (0xaabbccdd) into address (0x10000) of EEPROM and try to check the value with CodeWarrior MEMORY tool, the values are 0. like below screenshot:

Confusingly, It's successful to read data at address(0x100000) after that.please refer to the below screenshot:

I'd like to know where the problem is.

Thanks!

Re: EEPROM data question

stanish — Tue, 20 Jun 2023 10:58:53 GMT

Hello,

In some cases, the debugger's memory view might not automatically refresh or update the displayed content.

Could you try to perform manual refresh/ of memory view before read instruction is executed?

seem the original EEPROM area content is no updated.

Re: EEPROM data question

lama — Wed, 21 Jun 2023 09:07:20 GMT

Hi,

probably....

https://community.nxp.com/t5/S12-MagniV-Microcontrollers/Debugger-EEPROM-Read-S12ZVML128/m-p/1007936

Best regards,

Ladislav