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STM32F051 debugger and pin remapping

Question asked by lauret.benjamin on Mar 5, 2014
Latest reply on Mar 6, 2014 by lauret.benjamin
Hi All,

I am facing the weird problem. I use STM32F0 discovery kit. I have my setup fully working with debugger integrated in eclipse. 

At some point, I decided to remap PA11 to AF_1 so that I can use the UART1 with flow control. When the pin is remapped, I cannot connect the STLINK to the MCU anymore. 

I did some Logic analyzer traces of the SWD interface. I am not yet able to decode successfully the frame when it works and when it does not, but they are not the same at all. 

I had a thorough look at the debug documentation in the RM0091 and I do not see any debug features link to PA11.

Did I miss something obvious. I have to tell that outside the debugger, my firmware is running fine, with or without the pin remap. 

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