此程序可以实现AD7606采集卡数据采集并记录到sd卡里面的sd.txt内，二进制形式存入打开显示的是数值对应的ascll码，然后将数据读出传送给串口。-This program can achieve AD7606 acquisition card data acquisition and record into the sd.txt card inside the SD, binary form into the open display is the value of the corres