In order to be convenient for industrial application

the stepping motor controller with human-computer interaction was designed. The controller has its special instruction set. User could accomplish the design of application program

selection of self-defined images and the setting of registers by using the program compiling software running on PC. With the serial bus

aforesaid information was sent to stepping motor controller by program compiling software and stored in nonvolatile memory. The application program was read

interpreted and executed by stepping motor controller. The LCD of the system displayed operating information in real time. Also

keyboard was included in the system

so the user could modify the program or register parameter in the field. The Cortex-M3 based ARM controller

which had rich on-chip peripherals

was the core of the system. The design of system instruction set

human-computer interaction keyboard

nonvolatile memory and the LCD were analyzed in detail. At last

the system displaying result was given. The test result shows that LCD displaying information is synchronous to user command

and data storing of the nonvolatile memory is reliable. This system runs well in the application.