Arm Development Studio forum Debugging Cortex M3 from external Flash

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Debugging Cortex M3 from external Flash

Note: This was originally posted on 12th January 2010 at http://forums.arm.com

Hello,

I am using the STM32F103 controller from ST having the cortex M3 core. My firmware mechanism demands some portion of code to be executed from external Flash memory.

While executing the firmware from external memory I could not put the hard breakpoints.

1. Is this a limitation of Cortex - M3 core or the controller?
2. Can this be overcome by using any other tool then J-Link?
3. If this is a limitation of core the please let me know if you have any suggestions or workarounds.

Thanks,
Prasad