Developed with 51 single

RS485标准的C51通信程序，只要两个单片机和485芯片就可以实现通信-C51 standard RS485 communication program, as long as the two single-chip and 485 chip communication can be achieved

通过单片机对HT9170进行控制，实现对音频信号的解码。-Through the single-chip microcomputer to control HT9170, realize decoding of audio signals.

51单片机与PC的串口通信方案，内含pretous仿真文件-51 MCU and PC" s serial communication solution that includes pretous simulation file

1总线通信协议应用实例-a bus communication protocol Application

开发环境：IAR Embedded Workbench Version: 3.21A 功能 使用msp430的定时器A产生信号控制led闪烁 做适当改进可用于其他-Development environment: IAR Embedded Workbench Version: 3.21A function using MSP430 timer A control signal led flashes can be used to make appropriate improvements in other

适用于dos环境的串口通信，很好的程序-dos environment applicable to the serial communication, good procedures!

crc校验源码，可供C51程序员参考，我目前测试用的32位CRC程序-crc check source code, programmer"s reference for C51, I am currently testing 32-bit CRC procedures

6502内核指令说明，与士兰单片机内核兼容，有需要的朋友可下载参考。-6502 Kernel command that is compatible with the Kingsland Singlechip kernel, there is a need to refer friends to download.

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

非常经典~~的 一个~~~~ds1302液晶时钟-Very much a classic ~ ~ ~ ~ ~ ~ ds1302 LCD Clock