It is applicable in electronic control device of DPF and SCR system

The utility model discloses an it is applicable in electronic control device of DPF and SCR system, comprising an one -chip microcomputer. The AD0 -AD7 port of singlechip passes through analog signal acquisition circuit and connects the analog signal input interface, the IOPWM port of singlechip connects gradually optical coupling isolation circuit, big current output drive circuit and control signal output interface, serial interface is connected to the UART port of singlechip, data storage module is connected to the SPI port of singlechip, real -time clock is connected to the IIC port of singlechip, the programming interface is connected to the BDM port of singlechip, power module is connected to the VDD port of singlechip, bus interface is connected to the MSCAN port of singlechip, the utility model has the advantages of the circuit board interface is abundant, only needs to select the corresponding equipment that interface connection is suitable according to the actual demand to the application layer code of change control program can be realized DPF system or SCR system effective control.