Ammeter used to do a 51MCU products. The source code. Current accuracy level 1mA...

KeilC开发,51通过8255对外部4*4键盘进行控制.按键分别为0-9以及上下左右,加上确认取消.-KeilC development through 8255 to 51 4* 4 external keyboard control. Keys were 0-9 and above and below, coupled with canceled.

两个7段共阳LCD显示器，可以调整倒计时时间-A total of two 7-yang LCD display, you can adjust the countdown time

我在使用的一个1335SED液晶屏程序.-I use an LCD screen 1335SED procedures.

1602 driver example

一个任务显示LED，一个扫描键盘，一个任务将键值转化为显示格式（无时间要求） 键盘模块完全参照巨人老师例程； 显示很简单：1、判是否到2ms 2、送显示 键值处理：1、有无有效信息 2、弹出有效信息处理队列 3、将信息处理；键值处理不随1ms动作-a task LED, a scanning keyboard, a pair of tasks into a display format (no time requirements) keyboard module is taking giant teachers routines; Show is very simple : one, whether sentenced to two 2ms sent show keys : 1, the effective availability of information 2 , pop effective information processing cohort 3, information processing; the pair handle moves with 1ms

用于C51上的modbus协议，经测试可运行，但还不完善-C51 for the Modbus protocol, the tests will be run, but still not perfect

介绍一种高分辨率的双路A/D转换器AD7711，能满足双路A/D采样要求。内容包括AD7711的特点， 内部寄存器结构和外部接口，并详细阐述了数据采集系统中AD7711与单片机AT89S8252的接口技术，包 括硬件接口电路和软件程序设计及其注意事项。 -Introduce a two-way high-resolution A/D converter AD7711, can satisfy the dual A/D sampling requirements. Include the characteristics of AD7711, the internal register structure and the external interface, and detailed data acquisition system with the AD7711 single-chip AT89S8252 interface technologies, including hardware interface circuit and software design and its attention to matters of procedure.

LCD液晶屏显示程序，如何简单有效的将LCD液晶屏驱动显示我们所需要的字符。-LCD liquid crystal screen display program, how simple and effective LCD LCD screen will show that we needed to drive the characters.

单片机课程设计类 单片机课程设计类-SCM SCM curriculum design, curriculum design class curriculum design class Class SCM

keeloq算法基础知识 主要是关于其芯片HCS300的介绍-KEELOQ algorithm is mainly based on knowledge of its chips on the HCS300 Introduction