单片机，与PC 串口通讯 程序

利用单片机定时计数器，测量信号频率： 利用单片机定时计数器，测量信号频率-The use of single-chip timer counters, measuring signal frequency: use of single-chip timer counters, measuring signal frequency

a good program for battery charge,only for reference

A/D转换，转换结果用液晶显示出来，液晶是OCMJX12864。显示的结果是数字量。使用的是ADC0809。（有原理图）-A/D conversion, conversion results liquid crystal display, LCD is OCMJX12864. The result is digital displays. Are using the ADC0809. (With schematic diagram)

51开发板调试程序，包括LED驱动接口，串口，AD/DA,EEPROM，蜂鸣器，键盘以及16*2LCD驱动模块，并提供单字节和字符串显示接口-51 development board debugger, including the LED drive interface, serial, AD/DA, EEPROM, buzzer, keypad and 16* 2LCD driven module, and provides single-byte and string display interface

PCB CAD CSIEDA CAD File PCB CAD CSIEDA CAD File-CSIEDA CAD File

MCS51单片机的宏汇编器源程序-MCS51 the macro assembler source

2051 Terminal.ASM 2002.12.26 整理打印 2002.12.27 增加对Reset命令的处理(9A) 2003.01.21 增加灭灯时清除数据-2051terminal

msp430f449的文件， 很有用的-MSP430F449 document very useful

频率计，精度高，可以自动换档，一般单片机可以达到0…500k-Frequency, high precision, can automatic transmission, the general single-chip microcomputer can be 0 ... 500k

完全实用化的020 SMBUS程序（与时钟PCF8563通信-Entirely of 020 SMBUS utility program (with the clock PCF8563 communication