51单片机写得MODBUS协议程序，可以实现寄存器得读写等操作

8051设计延时程序说明。-8051 design description of the procedures.

430单片机的部分源代码，读者可以适当的下载，自己看着办。-430 single-chip part of the source code, readers can download the appropriate,看着办own.

《单片机应用系统开发实例详解》 光盘 程序-err

串口调试程序，接收FLOAT的4BYTE并解析显示，常用于单片机开发-Serial port debugger, receive FLOAT(4BYTE)and parse it to show that commonly used in MCU development

增加ASCII.C的一个ASCI码(7F),用于虚拟按键用 修改UART串口的命令解析程序，修改RTC的pcf8563中断部分。 精简IIC和smart_timer代码,添加define.h的宏定义。 修改system.c里的消息堆栈的宏定义 增加ii.c函数,支持对eeprom的打包 增加由PLD或者GPIO输出的模拟UART，在6个CLOCK下速度为57.6K 增加消息的优先级功能，消息类型的前4位为消息的优先级，后4位为消息的类型 试用于初学单片机并且想更上一层楼的，或者有些基础，想减少工作量的。-an increase ASCII.C the ASCI code (7F) for the virtual keys with serial UART to amend the order analytic procedures, the revised RTC pcf8563 interruption part. IIC and smart_timer streamline code, add the definition of Acer define.h. The revised system.c news stack macros increase II.c function, support for EEPROM packaged increase from the PLD or GPIO output analog UART, in the next six CLOCK speed of 57.6K news of the priority function of the type of information before news of the four priority levels after four types of information on the trial beginner to a higher level and SCM, or some foundation, we want to reduce the workload.

C51入门源码，程序功能使单片机播放音乐，附有详细注释-C51 Introduction to source code, the program allows single-chip music, with detailed notes

麦迪工作室51开发板LCM1602液晶屏驱动代码。可点亮1602液晶屏。-Madison Studio 51 development board LCM1602 LCD driver code. 1602 LCD screen can be lit.

绝对正确的SAA7121寄存器初始化值，包括PAL、NTSC,不能用你找我-SAA7121 absolutely correct register initialization value, including PAL, NTSC, you should not use me

FLASH芯片29C040的C源码-FLASH chip 29C040 C source

4x4矩阵键盘数码管显示键值,按下4*4矩阵键盘，可以看到数码管的最后一位显示了对应按健的健值.-4x4 matrix keypad LED display keys, press 4* 4 matrix keyboard, you can see the last one shows the digital control of the health value of health should be.