在MCS51上分别利用C和汇编编写了AD-DA转换程序、利用自带温度传感器检测环境温度、驱动步进马达程序、驱动自带RTC实时时钟。经验证，能成功运行-In which use the MCS51 C assembly write AD-DA conversion program, use own temperature sensor test environment temperature, drive stepping motor driver program, bring their own