Software and Drivers
Development environment: Platformio plugin for Visual Studio Code
Connect Driver: STSW-LINK009
Environment configuration & test items
We open platformio and create a new project (as for downloading vscode and installing the platformio plug-in, please go to Bilibili to search for it, there are very detailed tutorials and free installation packages)
This "BluePill" is the minimum system development board. Note that there is also a board option "STM32F103C8" in the options, which is not suitable for our board
After the project is built, we will see the project directory. What we mainly need to edit is the main.cpp file in the "src" folder and the platformio.ini file.
STSW-LINK009
Download the installation package from the official website or click the link I provided (downloading from the official website may require registration and login, etc., so it is more convenient here)
Then connect the STM32 development board and ST-LINK as follows
board -- linker
3V3 ---- 3V3
GND ---- GND
SWO ---- SWDIO
SWCLK -- SWCLKBe careful not to try to connect from the other end of the development board (UART), which is only responsible for power supply, not serial communication function
Then open the device manager of the computer and click the "Universal Serial Bus Device" option. If there is an "ST ST-LINK" device in it, congratulations, your development board can be burned.
platformio.ini
My development board configuration is like this
[env:bluepill_f103c8]
platform = ststm32
board = bluepill_f103c8
framework = arduino
upload_protocol = stlink
debug_tool = stlink
upload_flags =
-c set CPUTAPID 0x2ba01477The last item was because such an error occurred at that time
Warn : UNEXPECTED idcode: 0x2ba01477
Error: expected 1 of 1: 0x1ba01477This error means that the chip ID read by OpenOCD (0x2ba01477) does not match the ID it expects (0x1ba01477).
main.cpp
After the above configuration, we have preliminarily completed the configuration of the environment. Now let's design a small program to test it.
#include <Arduino.h>
#define LED_PIN PC13
void setup() {
// initialize the LED pin as an output
pinMode(LED_PIN, OUTPUT);
// initialize serial communication at 9600 bps
Serial.begin(9600);
Serial.println("STM32F103C8T6 LED测试");
}
void loop() {
// Turn on the LED (LED is on when PC13 is LOW)
digitalWrite(LED_PIN, LOW);
Serial.println("LED 开");
delay(500); // delay 500ms
// Turn off the LED (LED is off when PC13 is HIGH)
digitalWrite(LED_PIN, HIGH);
Serial.println("LED 关");
delay(500); // delay 500ms
}We tested this using the onboard LED controlled by PC13, the code is as above.
Tuntun Yuchiha