但是在传统的全步或者半步模式下，步进电机的分辨率受到电机结构的很大限制。

However their resolution, when driven in the conventional full or half step modes of operation, is limited by the configuration of the motor.

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介绍了一种基于CPLD实现五相步进电机的驱动器的设计方案，可实现全步、半步控制。

A new design of five phase step motor driver based on CPLD is introduced. The driver can implement the full step and the half step control.

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第二步：明白第二个道理——你不曾、也不会十全十美。

STEP 2: Acknowledge that you have not been - and never will be - perfect.

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