The General Step-motor Controller Based On The MSP430F149
Abstract
This article mainly introduced realizes based on the MSP430F149 single chip step-motor general controller. This controller may at the same time control the multi- tablecloths to enter the electrical machinery according to the curve way movement, including adds and subtracts fast and the commutation function and so on. Selects this model single chip goal is applies its rich connection resources and the formidable timer function.
step-motor in the numerical control system to be possible to receive the numerical control signal directly which the microcomputer sends, but does not need to enter the number of lines/The mold transforms, therefore brings for the control application system design is very greatly convenient. step-motor to have two remarkable characteristics as the functional element: (1) is the fast start ability, (2) is the precision is high.
If shoulders oversized or because disturbs, step-motor to be able to fall out of step. In order to cause the control precision to be more superior, this design uses the photo electricity type sensor to step-motor to carry on the examination. The sensor step-motor rotational speed to transform for the pulse signal gives the single chip, the single chip on the pulse signal judgment which sends to the sensor the step-motor speed, then the adjustment electrical machinery rotational speed in that leg function movement, at the same time examines the rotational speed whether surpasses the security rotational speed, if surpasses on sends out the pulse signal to the alarm apparatus to report to the police.
Keywords: MSP430F149， single chip ，step-motor，general controller
