这是一个测试MP3的程序，通过USB口来测试此款MP3是否出现了功能故障,或者此MP3是否是出厂状态，实现了从PC上层直接控制下层硬件的范例.-This is a test MP3 procedure for the adoption of USB MP3 Photo Player to test whether there is a functional fault, or whether this is manufactured MP3 state, from the PC to achie

该CAN通讯模块接收发送功能正常，分享给需要的朋友。使用C语言编写，通俗易懂。还有一些故障诊断代码。-This CAN receive send function normal communication module, share to need friends. It was written in C language, easy to understand. And some fault diagnosis code.