2020-01-28 10:03 AM
Hi all,
I have a custom board, with a STM32F303CCT6, but I cant to connect with ST-LINK.
For simplicity, I only soldered the MCU, the 4 capacitor on the power pins and the reset circuit. I tested with BOOT0 to GND and to VCC, but nothing works.
I tested the MCU connecting by serial and I did read/write correctly, but I cant to connect by SWD.
Any advices?
2020-01-28 11:25 AM
Part's not running/functional.
Check level on NRST pin.
Make sure VDDA and VSSA are connected to supplies.
2020-01-28 11:29 AM
External ST-LINK, make sure pin 1 or 2 are connected to supply for board.
2020-01-29 01:06 AM
Thanks!,
All those things are checked!
2020-01-29 01:09 AM
In order to simplify the circuit, will start with this minimum configuration?:
-4 capacitors between VDD/VSS VDDA/VSSA
-NRST to VCC
-Power by ST-LINK
-Connect SWDIO
-Connect SWCLK
2020-01-29 01:57 PM
NRST should not be driven, there should be an internal pull-up, you can either leave unconnected, or connect to SWD/JTAG header.
Check device orientation.