Chip download program for the first time, in the debug - & gt; In the setting of displays SWD/JTAG Communication failure solution:
(1) to connect BOOT0 high level;
(2) supply power to the board and press the reset button to download the program;
(3) will pick back up BOOT0 low level;
(4) to download the program,
(program successfully download and run)

CodePudding user response:

Should be a reset signal