有关8255的编程工作，关于交通灯的，下载可以看看，希望能够对你有所帮助-Programming of the 8255 work on the traffic lights, download can take a look at, I hope you can help

有关8255的编程工作，关于交通灯的，下载可以看看，希望能够对你有所帮助-8255 on the programming work, on the traffic lights, the download can see, hope to be able to help you