OM13098 Demo board will not run application unless in debugger (using Keil)

[Ken_V]

I created an application using the MCAN interrupt demo code as reference using Keil tools.

I can run it with the debugger, but I notice it stops at a memory location in the disassembly window that lists a breakpoint. I run from there and my application works just fine.

If I try to just flash the application and run it without the debugger, it does nothing...thinking it's stuck at that breakpoint.

The .map file says it is part of sys_command.o??? I searched the project for this and came up with nothing. 

Anybody have any ideas on how to fix this?

Thanks,

Ken

[Alice_Yang]

Hello converse,

Thanks for your sharing,

Regards,

Alice

[Ken_V]

Thanks for finding that for me!

Looks like I have the semihosting issue.

[Ken_V]

No, I am not doing any kind of C I/O.

[converse · Accepted solution]

Suggest you read this

https://www.keil.com/support/docs/3614.htm

[converse]

Are you doing anything like printf or any other sort of C I/o? You must have a debugger attached if you are.