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akenvi · 2024-10-18

Dear all,I'm unable to connect via SWD to my STM32F103C8T6. What ever I try I get no target found with STM32CubeProgrammer or ST-LINK Utility (I have tried all combinations at slow and high speeds). - device is virgin- BOOT0 is low- NRST unconnected ...

akenvi · 2024-10-22

Thank you, apparently it was the VDDA pin that was not powered properly. With the pin powered the MCU boots and connection via STM32CubeProgrammer was possible in a first try. I think that solved the riddle.

akenvi · 2024-10-22

Thanks all for your further answers! It appears though as the problem is somewhere on the HW config side. We now tested several boards with the "real" ST-LINK V2 and NRST connected to no avail. When checking the levels of the signals close to the MCU...

akenvi · 2024-10-19

Hi, so this is what I get. There is one peculiar thing: When I switched on the power with the previous MCU (before desoldering it) the LEDs D3 and D5 lit up very dimly, leading me to believe the chip was faulty, the new chip also did it shortly but s...

akenvi · 2024-10-18

@Peter BENSCH Hi Peter, thank you for your answer!I realized my mistake with the LED after I created it and changed the LED to a 0 Ohm resistor - I verified the BOOT0 is low. Thanks on the ST-LINK Utility info, I was not aware and that it would be th...

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No SWD target connection with STM32F103 on custom PCB

Re: No SWD target connection with STM32F103 on custom PCB

Re: No SWD target connection with STM32F103 on custom PCB

Re: No SWD target connection with STM32F103 on custom PCB

Re: No SWD target connection with STM32F103 on custom PCB