SCM simulation and software debugging can be realized in Proteus. Software compiling and debugging environment of the third part is also supported in it,such as Keil C51 uVision2. The design based on 89C51 microcontroller as control unit. The coordinates of point formation LCD are established and matrix point is lighted, to simultaneously display nuclear signal both on the point formation LCD12864 and character LCD1602. A simulation was conducted...