通过编写的上位机程序向单片机发送品质因子Q，中心频率F0，单片机通过串行通信接收Q，F0，从而实现89C2051单片机的驱动Max261滤波芯片过程序，单片机使用 X25045芯片作为外部看门狗电路-Sent via the PC program to the microcontroller Q, f0, via the serial communication allows the device receiving Q, f0, achieve 89c2051 microcontroller driver max261 filter chip filtering program, MCU x25045 chip as an external watchdog circuit