将AD7708配置成10个伪差分通道，用前3个通道，测量三路电压，并在LED上顺序显示，然后显示三通道的和。增加

零位校准功能，在程序中给定零点值，DS7DS6显示调0标志。增加看门狗和I2C程序。测到的值乘2-AD7708 configured to 10 pseudo-differential channels, with the former three-channel, measuring three-way voltage and LED display on the order and then display the three-channel and. Increase the zero-calibration function, in the proceedings against a given value, DS7DS6 showed signs tune 0. Increase the watchdog and I2C procedures. Measured value by 2