S32KのトピックRe: Flash Erase

Flash Erase

ganeshvaka2 — Sat, 20 Mar 2021 07:25:52 GMT

Hi @all experts,

I am working CAN Based Bootloader for S32k142.I am Facing issue for Erase Application memory from 0x5000 to 0x3FFFF.when I was debugging step by step I will be Successfully Erasing memory. When I was Flash and run code it is immediately going to HardFault_Handler.if any having any idea please explore here .

Debugging mode: Successfully Erasing memory

Run Mode: HardFault_Handler

Thank you for your Support
Ganesh Babu Vaka

Re: Flash Erase

davidtosenovjan — Mon, 22 Mar 2021 12:43:24 GMT

Hi, could you defined which our SW product is this question related to?

Re: Flash Erase

ganeshvaka2 — Wed, 24 Mar 2021 04:03:56 GMT

Hello @davidtosenovjan

Thank you for your Valuable response!

As I said earlier I am working on CAN Based Bootloader. If I want flash new software need to erase old Software. When I was Request erase Software am getting Hardfault handler .When i debug step by step I am facing Issue here .

If anyone have Any Idea please help me out
Thanks and Regards
Ganesh Babu.

Re: Flash Erase

davidtosenovjan — Wed, 24 Mar 2021 09:16:40 GMT

OK.

Do you execute this function from RAM?

Re: Flash Erase

ganeshvaka2 — Wed, 24 Mar 2021 09:49:33 GMT

Yes

Re: Flash Erase

nelson_scheja — Wed, 24 Mar 2021 15:30:20 GMT

I had a very similar problem once (crash at flash operation in Run mode, but working fine on debugging). For me, it was solved by putting the function that starts the flash command into RAM and executing it from there.

If you are absolutely sure that your function EraseAndProgram() runs in RAM, I got no more idea about this.

Re: Flash Erase

davidtosenovjan — Thu, 25 Mar 2021 07:14:08 GMT

What is value of 'add' at that moment? Could you check in assembler window if code runs for SRAM to be completely sure?

Re: Flash Erase

pankajprasad100 — Fri, 02 Apr 2021 09:23:03 GMT

Hello @davidtosenovjan

How to call function from RAM?

Thanks & Regards

Pankaj Prasad

Re: Flash Erase

davidtosenovjan — Sun, 04 Apr 2021 12:47:05 GMT

Easiest way it is just execute Debug_RAM target (if S32DS used), if runs the code from SRAM. Or you create new memory segment/section in the linker file and use an attribute before C function declaration to relocated selected function to RAM

__attribute__ ((section(".MyRamCode"))) // place the code below into .MyRamCode section
void EraseAndProgram(void);

Re: Flash Erase

pankajprasad100 — Mon, 05 Apr 2021 05:43:45 GMT

Since we are using IAR compiler, it will generate .icf file , so how can i declare the

__MY_RAM_ADR = ADDR (.MyRamCode);
__MY_RAM_SIZE = SIZEOF (.MyRamCode);
__MY_RAM_ROM_ADR = LOADADDR (.MyRamCode);

if you have any demo .icf file, please share to us.

Thanks & Regards

PANKAJ PRASAD

Re: Flash Erase

davidtosenovjan — Wed, 07 Apr 2021 06:35:21 GMT

You may see example for design studio, where linker command file is modified this way:

https://community.nxp.com/t5/S32K-Knowledge-Base/Example-S32K144-Flash-RW-simple/ta-p/1110000

For IAR, please consult with IAR documentation or support. Thanks

Re: Flash Erase

ganeshvaka2 — Tue, 01 Feb 2022 08:25:11 GMT

Hello @davidtosenovjan

we are facing issue with s32k116 ,while trying to erase memory from RAM using API: EraseAndProgram .

Programming terminated with SIGINT Interrupt

Please find the attached Debugging Console Screenshot

Please find flash.ld file

Thank you