STM32F0 flash programming

[kanno]

Posted on October 15, 2012 at 12:50

Dear friends.

I'm making a program for STM32F051R8 (STM320518-EVAL). And I was using ST-Link.But, When I was write program that use USART2 (PA14/15), I can not connect to the target by ST-Link.I have tried FlashLoaderDemo V2.5, but it did not work for F0.I want to write a new program to the target.Please tell me another way.Thank you.T.Kanno #stm32f0-st-link-flash-program

[sgrunza]

Posted on October 15, 2012 at 14:39

If you could distill your program down to something small that has the same failure symptoms and then post the program, I (and probably others) could try to reproduce the problem and perhaps come up with a solution.  I have the STM32F0Discovery board so my results may not be helpful for you.  I'm using OpenOCD 0.6 and the CodeSourcery Lite tools (on both WinXP and Fedora16).

[Tesla DeLorean]

Posted on October 15, 2012 at 15:21

If you could distill your program down to something small that has the same failure symptoms and then post the program, I (and probably others) could try to reproduce the problem and perhaps come up with a solution.

The problem as expressed by the OP is that PA15 USART2_TX conflicts with the SWD's SWCLK pin, and thus kills the debug options. PA2, PA3 may be a better pin choice for USART2 operation.