该程序提供基于hd7279的键盘显示c51源代码，在调试过程中首先要检查rc振荡电路是否正常-,-procedures based on the keyboard shows hd7279 decoder source code, Commissioning of the first process to check whether rc oscillator circuit the normal-,

其片内设有时钟振荡器、128K字节EZPROM(电可编程可擦除只读存贮器)、低噪前置放大器、自动增益控制电路、反混叠滤波器、平滑滤波器、模拟转发器、差动功率放大器等高品质语音录放系统所需的全部基本功能电路。-There are chip clock oscillator, 128K bytes EZPROM (electrical erasable programmable read-only memory), low-noise pre-amplifier, AGC circuit, anti