| 摘要 |
PROBLEM TO BE SOLVED: To alleviate a load to a CPU with regard to a stepping motor controller, a stepping motor control method and a stepping motor control system. SOLUTION: An acceleration control starting section 11 receives a control starting signal, and outputs an start angle address from an angle address register 12. A duty calculating section 19 selects a duty corresponding to an angle address loaded from a pointer register 16 from a duty storage section 18 for previously storing the angle address and the duty corresponding to the angle address, and outputs the duties to pulse generating sections 22, 23. The pulse generating sections 22, 23 output pulse signals corresponding to the duties to a stepping motor. An angle address calculating section 15 updates the pointer register 16 with the angle address loaded from the pointer register 16 and adding the inputted angle quantity. A rotation sensing section 17 senses one rotation of the stepping motor based on the angle address drawn out of the pointer register 16 and the angle address of an end angle. An acceleration constant calculating section 14 outputs the increased or decreased angle quantity from a sensed result. COPYRIGHT: (C)2008,JPO&INPIT |
