使用AT89S52单片机，在keil c51环境下，实现控制中青世纪PM50S50语音芯片发声的工程源代码。此工程以模拟总线方式操作PM50系列语音芯片，经实际应用证明，简单有效，占用单片机的管脚资源达到了最低。-Use AT89S52 microcontroller, keil c51 in the circumstances, to achieve control of Zhongqing PM50S50 century audible voice chip project source code. This project to simulate the bus operated PM50 series of voice chips, by the practical application of proven, simple and effective occupation pin MCU resources to meet the minimum.