Description: Content: Three-phase stepper motor driver Description: Step pulse input from the p3.2 pin (active low), direction of rotation controlled by the p3.7 pin, working operation mode: three-phase six-run mode, namely the A-AB-B-BC-C-CA-A output: A, B, C three-phase output corresponding to the P1.7, P1.6, P1.5 (each phase output is low) films: STC89C52 clock: 11.0592 MHZ
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