LayerscapeのトピックRe: Failed to write memory

Failed to write memory

bladerunner1010 — Wed, 27 Apr 2022 09:40:19 GMT

I'm getting error via Codewarrior when trying to connect with flash programmer or when I run the initialization script.

Jtag connection seems OK and I am able to read the RCW.

Error is:

Failed to write memory at address 0x2016002c on core CortexA53#0.

Chip is LS1023A.

Thanks for your help

@yi

Re: Failed to write memory

shu-zyc1 — Thu, 05 May 2022 18:18:39 GMT

l meet the same question ,how do you solve it

thanks you

Re: Failed to write memory

richardadams — Tue, 07 Jun 2022 00:25:20 GMT

I have the same error with a LA1043A board. Did anyone ever identify the cause of this error and how to work around it?

Re: Failed to write memory

bladerunner1010 — Tue, 07 Jun 2022 03:23:09 GMT

please attach your initialization script and will try to help

Re: Failed to write memory

richardadams — Tue, 07 Jun 2022 05:07:29 GMT

I'm using the initialization script for the LS1043ARDB (LS1043A_RDB._init.py) with the following changes to support Hardcoding the RCW since my board has a Blank NOR Flash which will be my boot device when I can program it

USE_SAFE_RCW = True

BOOT_CHIP_SELECT = 2

The error is generated from Init_BRR when the line " DCSR_BE_M(0x16002C, 0x0000000E)" is executed

回复： Failed to write memory

weid — Wed, 06 Nov 2024 10:17:38 GMT

l meet the same question ,how do you solve it ?

Re: Failed to write memory

bladerunner1010 — Fri, 08 Nov 2024 09:32:41 GMT

I personally did not, I moved to other projects since then.
The HW team cont. working on this and then discovered HW issues with the chip's power sequence.
You need to check that you are not writing to on chip memory so it will falsely show as a write success.
Also Try to check SPI flash transactions during writes.
Did you initialize DDR memory properly?
I think get the power sequence sorted out first, you can use an eval board for reference, I think it is done there using CPLD.