这是个串口液的驱动。希望给有用的朋友以帮助。128*64点阵

In-system Programming with C51 MCU and External Flash

使用IAR编写的DS1302时钟芯片驱动和4*4矩阵按键的扫描函数，可以使用按键设置时间，采用msp430f149单片机-IAR prepared using DS1302 clock chip driver and 4* 4 matrix keypad scanning function, you can use the keys setup time, using MSP430F149 single-chip microcomputer

cxa3050芯片控制程序，本人用的是Ｃ语言编写，芯片用的是ＡＴ８９Ｃ５１-cxa3050 chip control procedures, I used the C language, the chip is AT89C51

msp430f149的A/D转换。单通道单次转换和时钟模块操作的程序-msp430f149 A/D converter. Single-channel switch and clock module operating procedures

主要是实现I2C协议的一种方法，主要运行环境是ADS1.2-I2C protocol is mainly to achieve a method, the main operating environment is ADS1.2

用于数控摇杆控制手持式控制器，用89C52单片机作接口

十分详尽的串口调试程序，未经测试，不过已通过仿真-Very detailed serial debugger, without testing, but had passed through Simulation

单片机AT90S系列 制作简易USB接口（软件模拟,无usb硬件）。- Monolithic integrated circuit AT90S series manufacture simple USB connection (software simulation, non- usb hardware).

8位定时器H1(PWM 输出) -8-bit timer H1 (PWM output)

一些常用的c51源码，编程时可以参考。-some frequently used source decoder, the reference can be programmed.