About SA.3

SA.3 · 2021-11-15

Hi, We are using STM32F407VG MCU for one of the project and for programming we are using ST link V2. The MCU has SWD pinout, when we try to connect the MCU using STM32cube programmer we are getting the below errors,ST-LINK error (DEV_USB_COMM_ERR)Err...

SA.3 · 2021-11-15

MCU NRESET is connected to debugger. BOOT0 is pulldown using 510 ohm resistor and Boot1 is pull up using 10K resistor.

SA.3 · 2021-11-15

We tried flashing another MCU (Different board/MCU) with JTAG interface and is working fine. We are having trouble flashing MCU in SWD mode. Before posting in community we tried to flash using another PC, still we got the same error.

SA.3 · 2021-11-15

Yes, all the 4 boards are same.I forgot to mention one more point. I was able to flash one board for once, after that when I tried to re-flash the board I am getting the same error. I have checked for bad solder bridges, bad connection etc..

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STM32 programming using ST link V2.

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Re: STM32 programming using ST link V2.

Re: STM32 programming using ST link V2.