I modified _write function. When I use, printf("Hello \n"); in debug mode SWV Console, I get random 1 character like @.
I tried combinations of SWV frequency in debug configuration section.
I modified _write function. When I use, printf("Hello \n"); in debug mode SWV Console, I get random 1 character like @.
I tried combinations of SWV frequency in debug configuration section.
select HSI in PLL Source MUX. it worked for me.