train-board

代码说明：

  基于LM3S2948芯片的一个火车运行沙盘的控制程序，程序经过严格验证过应用在一个发布会上。速度用PWM控制，红外IO采集到站状态，自己写的一个验证的滤波程序。(Based on a train running sand table LM3S2948 chip control program, application procedures rigorously validated in a release. Speed with PWM control, infrared IO collection station status, himself wrote a validation of the filtering process.)