No Flash Operation After Power-Up

[Andy_B]

I am using a PEmicro Multilink to develop and flash code into my target board with IAR Embedded Workbench.  This works fine when the debugger is connected, and I get a UART prompt and some flashing LEDs (to let me know the firmware is running).

If I remove the debugger and cycle power the code does not appear to work: no UART prompt and no flashing LEDs.  

When flashing I get the warning below, so I assume that I've got something improperly set in either my linker command file or project settings.  Most of the code I'm using, at least for start-up, is from NXP's RTD (version 4.4.2.0.0) for the processor I'm using.

Any insight into how to resolve this would be appreciated.  Thank you in advance.

[Robin_Shen]

Hi Andy_B,

Looks more related to IAR, please contact IAR's technical support. I'm not familiar with the use of IAR, but maybe you can refer to this: https://www.iar.com/knowledge/support/technical-notes/general/creating-a-bootloader-for-cortex-m/
Also, have you tried the 'Attach to Running Target' feature to see where the program goes wrong?

Best Regards,
Robin
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