电路图和程序是正确的。如果问题可以去我的博客吨..

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.

通过EC的SMBUS接口读取电池信息，如电流、电压、温度等-read battery information via SMBUS in EC interface

51单片机与PC机的串行通信中的程序原代码。-51 microcontroller and PC serial communication of program source code.

将单片机的IOA0~IOA7分别接按键S1~S8连接到高电平上。此时，如果某个按键被按下，对应的I/O端口就会输入高电平进单片机，即按键S3按下，IOA2会输入高电平进单片机-Will Singlechip IOA0 ~ IOA7 access keys, respectively, S1 ~ S8 is connected to high on. At this point, if a button is pressed, the corresponding I/O port will enter into the high single-chip, that is, S3 button press, IOA2 will enter into single-chip high

单片机驱动硬盘程序，使用过程中要根据个人硬盘情况加以修改-Microprocessor drives, the use of the process to be based on individual hard drives of the modified

protues仿真！单片机仿真的源代码-protues

智能车的PID控制程序，用以调节速度和转角-Intelligent PID control procedures cars to adjust the speed and angle

无线模块TC35I开发必用，详细的AT指令手册-Wireless module TC35I development will use a detailed instruction manual for AT

Keil公司提供的C51例程(部分源码)，相当实用，适合初学者学习借鉴。-Keil" s C51 offers routines (some source code), very useful for beginners to learn from.

1602测试-1602 test