AT89c2051控制9200b发双音频码用8870解码并将BCD码返回AT89C2051,然后比较的源代码和Hex文件。-AT89c2051 Two-control 9200b audio decoder yards with 8,870 and will return to BCD AT89C2051, then compare the source code and Hex documents.

1.Atmega16单片机定时器2 CTC模式初始化 2.使用队列向定时器2的比较匹配中断传输蜂鸣器响法配置 3.含有单音音频播放函数-1.Atmega16 microcontroller timer 2 CTC mode initialization 2. queue timer compare match interrupt the transmission of two methods to configure the buzzer 3. contain monophonic au