After Reset SRAM Data corruption

Pragadeesh — Thu, 15 Jun 2023 13:11:21 GMT

Hi,

I am Using S32K342, in that I am working on Boot Loader, after Flashing application followed by Flash Boot Loader, in normal case could be able to jump to application, but once I power ON and OFF, SRAM data corruption is happening, in Debugger shows "??????", and SRAM init pattern is not initializing so that, ECU is going to hard fault.

Please provide solution for this issue, like where I have to update the code for this issue and which thing I need to modify.

Thanks & Regards,

Pragadeesh.

Re: After Reset SRAM Data corruption

davidtosenovjan — Fri, 16 Jun 2023 12:37:27 GMT

If you power ON and OFF, data in SRAM dissapeared because it is volatile memory.

Debugger shows "??????" apparently because you have breakpoint at the very beginning, before SRAM is initialized for ECC. (by 64-bit writes to completely define the ECC code for the data unit)

topic After Reset SRAM Data corruption in S32K

After Reset SRAM Data corruption

Re: After Reset SRAM Data corruption