Finish the segregation of the circuit,SPI interface communication of adopting software simulation for the quantity of reducing the photosensitive resister through the digital photosensitive resister.

• 通过数字光耦完成电路的隔离,为减少光耦的数量采用了软件模拟的SPI接口通讯。设计的脑电图机可以在恶劣的电磁环境下完成常规脑电图的检查。