problem with stspin32g4 debugging

[Tomuello]

Hello, I need help with stspin32g4 

I'm programming it with nucleo-64 SWD

I wrote a program with blinking led, then trying to start debbugging, i got 

"Break at address "0x1fff4b14" with no debug information available, or outside of program code."

despite this downloading goes on,

but led doesn't blinking, it starts when i turn off and turn on power supply of stspin32g4, so it looks like it is on breakpoint

 

[waclawek.jan]

0x1fff4b14 means, the program runs in the built-in bootloader (System area).

How is PB8 connected, and how are the Option bytes set?

JW

[Tomuello]

PB8 isn't connected 

I didn't set any option bytes

[waclawek.jan]

> PB8 isn't connected

To prevent bootloader entry, you may want to pull it down; or you may want to set nSWBOOT0=0 together with nBOOT0=1.

JW