Unable to program custom PCB based on STM32F412RG via SWD

[Vignesh M S]

Hi

I have a STM32F412RG based custom PCB and want to program via SWD, hence pulled down the BOOT0 pin with a 10k resistor. But, unable to connect to the target using ST Link -V2 and ST-Link Utility tools. Have tried connecting under reset by pulling down the NRST pin, clicking on erase and pulling up NRST again, but did not work. Any suggestion in this regard would be really helpful