Introduction - If you have any usage issues, please Google them yourself
Source code for can bus loopback test program using stm32f103c8t6 microcontroller. It can interface to access the microcontroller PA11 and PA12 pin serial port 1 (PA2, PA3) to print the received data. Source code using the timer 3 time, once every 5s to send data, can interrupt reception data, while the program will print out the data received.