STM32F10x microcontroller debugging problem

Question

I'm a beginner and I'm using STM32F10x family to learn about electronics.I was using STM32F103 blue pill in the past few months and I can debug it and upload code to it while both boot0 and boot1 are equal to 0.
When I switched to STM32F105 which has only boot0 and exposed since I couldn't find boot1 in the pinout in the datasheet.I have to hook boot0 into vcc in order to flash the elf file.now this also happens on the blue pill I can't flash it wihout turning boot0 into 1.
the problem is I can't debug it while boot0 is equal to 1 i'm getting
Target is not responding, retrying...
Target is not responding, retrying...
Error! Failed to read target status
Debugger connection lost.
Shutting down...
I think its because boot0 is equal to 1.
and when I turn back boot0 into zero the debugger can't flash the file and can't debug.
I'm trying to debug it since I have a problem I done a simple code to toggle led after 1 second but the code only execute for 16 seconds and stop executing. and I want to debug it to see why.
on the STM32F103 the this problem don't happen

Jwdsoft · Answer

I have solved the problem.the problem was that I activated SWDIO and SWCLK from Micro pinout.
Now when I chose SWD under System Core -> SYS.
it works fine and i'm able to upload software and debug while BOOT0 is equal to 0.

Chris Stratton · Answer

Your code won't run while the BOOT0 pin is high.
But if your code re-purposes or disables the SWD, or is simply bad in various ways, then you can't reprogram it.
The solution is to:

set BOOT0 high
reset
use the ST/LINK to perform a mass erase
set BOOT0 low
reset
load good code

There are ways to do this with having the ST/LINK manipulate the hardware reset rather than changing the boot pin, but they can be tricky, software configuration needs to be just right, and fake ST/LINK adapters generally aren't able to actually drive their reset output

STM32F10x microcontroller debugging problem

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