stlinkv2.png Option 1: Command-Line (Windows/Mac/Linux) https://github.com/texane/stlink/releases/tag/1.3.0 USB Drivers: (Windows) https://zadig.akeo.ie st-flash.exe write stm32_loader.bin 0x08000000 --reset or st-flash.exe write stm32_loader.hex --reset Note: BIN require to specify address, HEX do...

Added to ESP8266 firmware, this way you can flash your newly soldered board with blank STM32.

Well this maybe a challenge, but looks promising. const int swd_clock_pin = 4; const int swd_data_pin = 5; Olimex ESP8266 has free GPIOs: GPIO4 -> Clock - Pin4 (SWD) GPIO5 -> Data In/Out - Pin2 (SWD) UPDATE: Success !!! I can connect (send magic sequence to change JTAG to SWD) and do basic commands ...

This is an interesting proof-of-concept https://github.com/scanlime/esp8266-arm-swd

Potentially can flash bootloader using ESP8266 web interface without external debugger.

Test#2

looking into it ...

Testing new forum.