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ST-LINK does not communicate with STM32F407VGT

Question asked by Gregorio Vidal on Jan 23, 2017
Latest reply on Feb 9, 2017 by Gregorio Vidal

Hi everybody,

I have a problem with my project. I designed and produced a PCB with two MCUs, the STMF401RB and the STM32F407VGT. I am using the ST-LINK V2 to program them and SWDIO and SWCLK. The problem that I have is that I can connect to the STMF401 but I can't connect to the STMF407. I checked the VDD and VSS in every pin and they seem to be ok. I think the design is ok but may be i missed something. I have attached the schematic that I used for the STMF407. I would be grateful if you can help me.

 

Thank you very much

 

Regards

 

Gregorio

 

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