Memory edit leads to debug break at 0xdeadbeee

petrama — Tue, 26 Jul 2022 10:23:35 GMT

Using MCUXpresso memory map editor editing memory map for "Hello World" from EVK RT1024-SDK results in this message when executing Debug:

"Break at address "0xdeadbeee" with no debug information available, or outside of program code."

The memory change is size of SRAM_OC changed from 0x20000 to 0x10000 and SRAM_ITC size changed from 0x10000 to 0x20000. So 0x10000KB is moved from SRAM_OC to SRAM_ITC.

(Later note:I think an error here is that BOARD_SDRAM and NCACHE:REGION should be placed last, so that SRAM_DTC is the first RAM block.)

What am I missing - is there someting else I need to do? (all breakpoints have been removed)

In the editor all that is required is to change the memory block sizes by portions of 32KB - no other fields?

What purpose does the checkbox "Preserve memory configuration" have?

Re: Memory edit leads to debug break at 0xdeadbeee

kerryzhou — Tue, 26 Jul 2022 08:48:18 GMT

Hi @petrama ,

Please check this application note at first:

https://www.nxp.com.cn/docs/en/application-note/AN12077.pdf

You can see, the FlexRAM default OCRAM is 128KB, DTCM is 64 KB , ITCM is 64KB.

So, if you want to use larger ITCM to 128KB, OCRAM to 64KB, you need to do the flexRAM reconfiguration.

Otherwise, it will have issues.

https://community.nxp.com/t5/i-MX-RT-Knowledge-Base/Reallocating-the-FlexRAM/ta-p/1117649

The above post for flexRAM reallocate also useful to you.

Best Regards,

Kerry

i.MX ProcessorsのトピックMemory edit leads to debug break at 0xdeadbeee

Memory edit leads to debug break at 0xdeadbeee

Re: Memory edit leads to debug break at 0xdeadbeee