用89C2051单片机模拟

51单片机开发的等精度数字频率计，实现计数0--51 Single-chip, such as the development of precision digital frequency meter, realize counts 0--

这是我用汇编语言编写的计时器程序，通过计算机发命令开始倒计时，其中也有其他功能，但主要是倒计时，比较好用，这是个小程序，穿上来了表心意-This is the language I used compilation prepared by the timer procedures, through the computer started the countdown orders, which also has other functions, but the countdown is more convenient, it is a small program to put on the table liking

stm32f103 cortex_m3 sd卡操作例程-stm32f103 cortex_m3sd card routine operation

凌阳单片机的语音程序2，供学习凌阳单片机的学习者参考-Sunplus SCM voice two procedures for learning Sunplus SCM reference learners

HT44780 液晶显示驱动 里面有简单 程序和说明-HT44780 driver inside the liquid crystal display has a simple procedure and description

HID USB键盘单片机固件程序，能实现键盘输入的功能-HID USB keyboard firmware single-chip, to achieve the functions of keyboard input

在AVR单片机下通过USART实现串口通讯，里面包含有其配置及源码。-In the AVR microcontroller achieved through USART serial communication, which contains its configuration and source code.

LED显示练习，在CodeWarrior IDE进行初步的编程练习的程序-LED display to practice in the CodeWarrior IDE to conduct a preliminary programming practice procedure

一个汉字全自动检索软件，包含源代码以及字库-a Chinese automatic retrieval software, including source code and font

课程设计做的基本程序，可实现串口通信，定时，键盘扫描等功能！-Curriculum design to do the basic procedures can realize serial communication, timing, keyboard scanning and other functions!