what i s just what we very much need ,jus t give it to you

The 8051 programming in C.

用L298作为驱动器，控制两相混合式步进电机。 按键从上至下分别为减速，加速，正转，反转，停止。 具体参数还没有设定过。速度有些慢，加速按2下有效，然后就不能再快了。 转速输出是按照最小系统版的数码管写的。电路图里太麻烦就没画了。-Using L298 as the drive to control two-phase hybrid stepping motor. Buttons from top to bottom respectively, deceleration, acceleration, are being transferred, reverse, stop. Specific parameters have not yet been set. Some of the slow speed, speed up by 2, effectively, and then can not be faster. Speed output is in accordance with the minimum system version of the digital tube wrote. Circuit where not too much trouble drew.

51单片机及其C语言程序开发实例第7章节-51 SCM and its C language program to develop examples of section 7 of chapter

是单片机与PC机RS232串口通信的调试好帮手,当你苦于串口通信的调试,试试如何-is SCM and PC RS232 serial communication debugging good helper, when you suffer from serial communications debugging, how to try

对I2C总线的EEPROM芯片AT24C08进行读和写的操作，并判断读写是否一致。-EEPROM on the I2C bus to read and write AT24C08 chip operation, and determine whether to read and write.

51做的门禁系统代码，有4×4键盘扫描，9346的存储功能，掉电不丢失密码，3重密码防忘记功能-51 of the Access Control System code, a 4 4 keyboard scanning, the 9346 storage functionality, nonvolatile not lost password, three heavy-forget the password function

12864液晶显示程序 带中文字库 可以画图 写汉字 -12864 LCD process

关于sd卡２．２的协议，是sandisk的牌子-2.2 on the sd card agreement is sandisk brand

430例程调试程序 |――5-1 框架程序 |――6-1 异步串行通信程序（点对点通信） |――6-2 异步串行通信程序（地址位模式多机通信） |――6-3 异步串行通信程序（空闲模式多机通信） |――7-1 定时中断程序 |――7-2 PWM输出程序 |――7-3 捕获脉冲信号周期程序 |――7-4 软件模拟异步串行通信程序 |――7-5 基本定时器程序 |――8-1 FLASH擦写程序 |――8-2 非行列式键盘程序 |――8-3 行列式键盘程序 |――9-1 DMA数据传输程序 |――9-2 软件模拟IIC总线读写24C02程序 |――10-1 FLL+锁频环程序 |――10-2 LCD模块程序 |――11-1 ADC12单通道和序列通道单次转换程序 |――11-2 ADC12单通道和序列通道多次转换程序 |――11-3 DAC12数模转换程序 |――12-1 使用比较器A进行斜边AD转换程序 |――12-2 比较器A电阻值测量程序 |――13-1 中断嵌套程序 |――13-2 异常处理程序-err

工业开关量检测模块的原代码,带断线检测功能-Industrial switch module testing the original code, with disconnection detection