Hello.
I have 3 boards, Nucleo 446ze, 303re and a board with stm32f103re.
and I have been using Arduino IDE.
Nucleo 446ze was uploaded by 303re's stlink.
I connected only 3 wires, SWDIO, SWCLK, GND, and external power.
It worked well. I don't need control boot 0 pin.
Next, I tried upload to the board with stm32f103re.
I used 303re's stlink and connect cable same as before.
but stlink unable to connect, although arduino IDE still get board info.
I had uploaded the board with stm32f103re, short boot0 and gnd maybe two month ago.
I want to know the reason so I search and read this article "https://os.mbed.com/questions/5633/How-does-stlink-program-mcu-on-nucleo-bo/".
but I couldn't understand. It caused by differencies between STM32F4 and STM32F1?
I am making board use STM32F4. so I worry about debug problem.
This board will have a switch to select boot 0 to gnd or 3.3V.
Is it enough set? or Could I get better way like nucleo board?
