Bluepill bootloading

STM32 Bluepill - Flashing bootloader to enable USB interfacing

Download stm32flash source from https://github.com/stm32duino/stm32flash
Extract the file, navigate into the extracted folder and build it using the command sudo make install
Also download the binary file https://github.com/rogerclarkmelbourne/STM32duino-bootloader/raw/master/binaries/generic_boot20_pc13.bin , which is to be flashed

Make the boot0 jumper HIGH and boot1 jumper LOW
Connect USB-Serial converter RX - PA9 || TX - PA10 and power pins
Connect the serial converter to your computer and run the command stm32flash /dev/ttyUSB0 to check if the STM is detected, if not reset the STM and try again
Once STM is initialized, navigate to the folder conatining the binary file and run stm32flash -v -w ./generic_boot20_pc13.bin /dev/ttyUSB0
Change the boot pins to default configuartion