Just use the L298 driver chip, the master microcontroller 51, in keil debugging measured before, specifically to drive stepper motor! Not a DC motor.

L298驱动\zhongjie
........\zhongjie.c
........\zhongjie.hex
........\zhongjie.LST
........\zhongjie.M51
........\zhongjie.OBJ
........\zhongjie.Opt
........\zhongjie.plg
........\zhongjie.Uv2
........\zhongjie_Opt.Bak
........\zhongjie_Uv2.Bak
L298驱动

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