Firt of all you need follow a USB -> TTL Converter
You can buy one FTDI UART R232
Or instead if you have a ARDUINO you can convert it as a USB to TTL converter How to use an Arduino as a USB to TTL converter
You need a Windows instance in order to execute the STM32applications to burn the firmware into the Blue Pill if you are using Linux user or MacOSX you can use VirtualBox using the following image Window 7 STM32.
Then once you have the Virtual Box image imported, you can startup Windows 7 and connect your USB -> TTL Adapter to the Virtual Machine.
Make sure your Blue bill jumper is switched to enable the flashing.
Connect the USB -> TLL through your virtual machine
Now you can open Flash Loader Demonstrator to flash the first version of the firmware.
Ensure your blue pill has the bott switchet to be flashed and connect the follow pins
| FTDI | STM32 |
|---|---|
| TX | A10 |
| RX | A9 |
| VCC | 5V/3V3 (Voltage Switch) |
| GND | G |
Then the programm can read the memory and the specs of your Blue pill.
The firmware is stored in the desktop folder with the name stlink.hex, click download to device and select the firmware file.
Now you can test your STLINK V2 Clone connecting the Blue pill through USB, You should see a new USB device. Connect that device through your virtual machine.
Open ST-Util in order to update the current firmware
Now you can connect your Blue pill(STLNK V2 Clone) to another Blue pill. (don’t miss that short connection between PB12 and PB14!!!)
Click connect and you should see something like this
