SWD Debug / Jlink MIMXRT1172

[TM_MI]

Hello,

On our customized board based on EVK RT1176_AA. We run into an unusual behavior for SWD debugging.

Our processor is RT1172_8A. We don’t use QSPI flash. Debugger is Segger Jlink Pluse. Speed is auto or 4000kHz.

I used Jlink commander and I found out that on the first connection I cant HALT the CPU but if I reconnect during the same session then try to HALT everything seems ok. This could be the reason for the error when I debug from MCUxpresso.

Any idea on what can be the cause for such behavior?

second try

Thanks,

TM

[jay_heng]

It is caused by Debug Mailbox, when soft reset is issued under Non-XIP boot mode, PC will always be stuck in 0x223104

https://www.cnblogs.com/henjay724/p/15725966.html

[TM_MI]

Hello @jay_heng ,

It is nice to see you answering some of my questions. I read some of your articles before. Great work.

It is strange that I am able to debug using JTAG (SWD didn't work) from mcuxpresso despite this issue, however the program doesn't seem to be executing (no blinking or change).

Going back to the problem, I read the article about this issue, I think the issue as you mentioned. PC is halted at 0x00223104 (both SWD Jtag) .

I don't know why I can load a nonXIP file using JTAG but no blinking after execution.

I attached the complete SWD and JTAG steps below. How to solve this issue since I don't have a QSPI flash on my board ?

Jtag:

SWD:

Thanks,

Tarek

[CarlosGarabito]

Hi @TM_MI 

I suggest this excellent blog, where you can see a part of your issue

https://www.cnblogs.com/henjay724/p/15725966.html

Have a good day

[TM_MI]

Hello @CarlosGarabito ,

I read the blog as it explains the issue but not solution.

I am trying to reconfigure the application to be able to debug using Jlink since I don't have a QSPI NOR memory.

I have a SEMC NAND which I was able to use with MCUBootUtility.

I would like to be able to debug using MCUxpressue and Jtage so I am looking for a way to reconfigure the application to have a nonxip with the NAND memory as the default flash ?

Thanks,

Tarek

[CarlosGarabito]

You can check this thread https://community.nxp.com/t5/i-MX-Processors/MIMXRT-1176-SEMC-NAND-Config/m-p/1518034#M194829

[TM_MI]

Hello @CarlosGarabito 

This thread was created by me. I was able to verify the board with the Blinky example 0x00002000.src from Mcubootutility apps file.

Now I a trying to generate my .s19 file from mcuxpresso. I followed this link to modify the code to work with SEMC NAND

https://www.cnblogs.com/henjay724/p/12591382.html

As you can see from picture I still get an error even after changing the vector table starting address.

If I choose to link the program to RAM from properties I get a different error.

when linked to RAM

Thank you,

TM