说明：  熟悉D/A转换芯片的使用 把待转换的数据送D/A芯片TLC5615，开启D/A转换 用万用表或者示波器观察输出口（CON36）的电压 硬件要求：拨码开关S8全部置ON 其他拨码开关全部置O
(Familiar with the D/A converter chips used to convert the data to be sent to D/A chip TLC5615, open D/A converter using a multimeter or oscilloscope to observe the output (CON36) voltage hardware requirements: DIP switch S8 all other home ON DIP switch all home O)