MIC输入接ADC0809通道IN2，DAC0832输出接 扬声器。编程以每秒钟5000次的速率采集IN2输入的语音数据并存入内存，共采集60000个数据（录12秒），然后再以同样的速率将数据送 DAC0832使扬声器放音。-MIC input channel ADC0809 access IN2, DAC0832 output next speaker. Programming to 5000 times per second the rate of acquisition in2 input voice data and deposited in the memory, a total of 60,000 data collection (recorded in 12 seconds) and then the rate of the same data sent to enable the speaker playback DAC0832.