Eugene_Hecht_optics_ebook_and_solution

实现两个单片机通过SPI同步串行接口通信，一个作为主机负责响应，另一个作为从机负责发送。(Achieve two synchronous serial interface microcontroller via SPI communication, one as the host responds to the other as the slave responsible for sending.)

STM32+ILC9320+W25X16+XPT2046做的一个俄罗斯方块游戏 (STM32+ILC9320+W25X16+XPT2046 do a Tetris game)

通过DS18B20读取温度（范围-55C~125C，精确到小数点后一位），通过4位数码管显示出来。 当温度为正且百位为零时，不显示，当温度为负时百位显负号。当温度百位和十位都为0时0都不显示。(Read through the DS18B20 temperature (range-55C ~ 125C, accurate to one decimal), through four digital tube display. When the temperature is zero and 100, do not show, when the temperature is significantly negative at minus 100. When the temperature is 100 and 10 are not displayed 0:00.)

capacity log added for refernces

File Encriptor,for encrypting and decrypting files, written in c#....public keys, key generator...

51单片机驱动函数打包，已在STC89C52上验证，(51single-chip driver function package, has been in the STC89C52verification)

说明：  在正点原子的阿波罗平台上用stm32h743开发的简易示波器(A simple Oscilloscope built on stm32h743 in Apollo developer board)

利用单片机扩展8155芯片 4*4键盘扫描 (8155 to expand the use of single-chip-chip 4* 4 keyboard scanning)

I2C总线控制协议，基于C51的程序，可以对E2prom读写，keil51调试通过(I2C Protocal)

本例程源自网络，本人已调试可运行,本例程仅供大家学习交流(The routines from the network, I can run debugging for them to learn the routine exchange)