TIDA-010231: Simulation, hardware & system design tools forum

Hello,
Thanks for reaching out. 
The original TIDA-010231 does not use SCI, so I assume you added code utilizing SCI correct?

Can you check if the SCI code is working alone with flash configuration, by commenting out some of the parts of the code?

Best regards,
Andreas

I tested the sci sample project alone. And I'm testing the test project by mixing the two projects properly.
I'm going to send the project I was testing, so what should I do

Hi,

Just for my understanding:
Is the SCI project alone in flash working or not?

I am asking, because if it is working alone in flash, then the mixing can be the problem, if not then there is a problem in the SCI code itself.

Best regards,
Andreas

SCI project alone in flash working well...  

I also think it's a problem mixing it up, but it works fine after the first program.

I'd like to give you a test program...What should I do?

I don't know if this will deliver, but this is the project I'm testing now.

new_test_project.zip

Yes this works. I can have a look.

I think the problem is that variables in Flash cannot be written to via a CPU write.
See: https://e2e.ti.com/support/microcontrollers/c2000-microcontrollers-group/c2000/f/c2000-microcontrollers-forum/517072/uart-is-not-working-in-flash-mode

You need to modify your linker command file accordingly.

Best regards,

Andreas

Thank you for your quick reply.
I checked the link you sent me and it seems to be the same situation as me.
But there is no conclusion. I think the reason is to refer to the latest flash linker command file and use it...The file I used is probably the latest flash linker command file using the latest sdk example.
Can't you give me more details?
The sci sample example I use now works well on flash...I don't understand that it doesn't work in flash because it's mixed with TIDA-010231 project.
Can't you tell me a flash link command for reference?

Hi,

Glad to hear you solved the issue.

Best regards,
Andreas