针对STM32F103系列用keil编写的历程，包括LED,LCD,串口，CAN总线等，下载后用keil运行工程文件，然后仿真即可-STM32F103 series written for the course with keil, including LED, LCD, serial port, CAN bus, and so on, download the file using keil run the project, and then simulation can be