dsaf

Dependents:   Ex_3Dprinter_copy

Fork of a4998 by Keegan Hu

Revision:
1:ab0f997c2d9c
Parent:
0:173936452e07
--- a/a4988.h	Wed May 02 10:48:23 2018 +0000
+++ b/a4988.h	Tue May 08 01:19:00 2018 +0000
@@ -9,7 +9,7 @@
 {
 public:
     Stepper(PinName _en,PinName _stepPin, PinName _direction);
-    void step(int dir, int frequency ,volatile int _remain);
+    void step(int dir, int frequency ,volatile int _remain);            //方向,频率,步数3个参数
     void enable();
     void disable();
 private: