test

CRC16校验计算小程序，有移位、取反等位操作函数可供参考(CRC16 checkout a small program with shift, the allelic operation function is available for reference )

通过MFC实现上位机与下位机的串口通讯，可自配置。(Through MFC to achieve the host computer and the next bit machine serial communication, self configuration.)

SD卡2.0协议的详细资料，可用与SPI使用(The details of the SD card 2.0 protocol can be used with SPI)

DS1302+89c51的例程代码，实测可用(DS1302 STM32)

PIC USB OSCILLOSCOPE PIC scope64.asm

1000以内所有的完数，比较简单，用于学习和交流(1000 all finished within few, relatively simple, for learning and communication)

PS2通信，用stm32单片机模拟键盘鼠标往电脑送数据。(PS2 communication with stm32 SCM simulation to send data to a computer keyboard and mouse.)

说明：  各位C51的爱好者能够看到我的拙作，这离不开龙 啸九天版主的支持，在此，我向他表示感谢，也相信C51BBS会越办越好！(C51 fan you can see my apology, which is inseparable from Long Xiao nine moderator support in this, I thanked him, and believe C51BBS will be better and better!)

说明：  周立功EASYarm板所带出厂程序，包含按键，LED，蜂鸣器，AD转换的代码(ZLG EASYarm board brought the factory process, including buttons, LED, buzzer, AD conversion code)

dual-machine communications