实用的PIC单片机的单相双向电能芯片5460校准程序。

3*4键盘扫描程序 已加消抖功能 可以扩展为4*4~~~ 只用8个I/O口就能实现-3* 4 keypad scanner Buffeting extinction have been added functions can be extended to 4* 4 ~ ~ ~ only eight I/O port will be able to realize

zlg sd card for ucos

单芯片点对点串行通信（max232）单芯片点对点串行通信（max232）单芯片点对点串行通信（max232）

环境：keil c51 i2c调度工具-environment : Keil decoder i2c scheduling tools

液晶显示的完整程序，是你能很好的借鉴lcd的编程思想。-LCD complete procedures, is that you can draw very good lcd programming ideas.

DTMF双向收／发集成电路MT8880专门为双音频信号的收、发而设计，它既能产生发送双音频信号，又能对双音频信号进行接收译码，还能判断各种信号音(拨号音、回铃音、忙音)。以上就是它的应用电路和程序-Two-way DTMF collection/fat MT8880 IC specifically for the dual audio signals received, the design, it could have sent dual audio signal, while the dual audio signal decoding receiver, but also to judge the sound signal (dial tone , ring back tone, busy tone). Above is its application circuit and procedures

使用89S52芯片来驱动1602液晶显示,用KEILC51编译,可靠,并实践过.-err

单片机音乐 音乐编程 通过蜂鸣器发出讯响 只要通过修改 后面的音乐程序里面的码 表就可以自己谱曲唱歌！ 前一个参数为按照编码表给定，第二个参数为节拍数 -MCS Music music programming through the buzzer sounded after hearing sound of music as long as the procedure by modifying the code inside the table you can compose their own singing! Before a parameter is given in accordance with code table, and the second parameter is the number of beats

这是一个播放音乐的程序，at51 的mcu，已经调试通过，-This is a music program, at51 the mcu, has been commissioning adopted

CF8051F040开发板的SRAM_rw_test 程序-CF8051F040 development board