FREESCALE 16位单片机片MC9S12DG128的串口驱动程序,环行缓冲区大小可设置,支持半双工RS485通信,可调用用户事件-SCM MC9S12DG128 Serial Driver, Ring buffer size can be set up to support half-duplex RS485 communications, users can call the incident

这是我写的MSP430F149程序，里面包含定时器，看门狗，PWM和RS485串口通信的源程序-This is my written the MSP430F149 program, which contains a timer, watchdog, PWM, RS485 serial communication source

基于STM32F1xx系列微处理器、RS485通信协议，Kill ARM开发环境下，可通过串口收发任意长度字符串的完整程序。下载至开发板后通过串口助手反复测试无误，代码清晰简洁，关键处有详细注释。-Based STM32F1xx series of microprocessors, RS485 communication protocol under Kill ARM development environment, complete program to send and receive se