YX ZHANG
stepper motor
Diff: main.cpp
- Revision:
- 0:19f886d481f3
- Child:
- 1:6d4a62f98351
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Wed Oct 11 03:38:41 2017 +0000
@@ -0,0 +1,30 @@
+#include "mbed.h"
+
+Ticker ticker_step;
+DigitalOut step(PB_0), dir(PB_1), en(PA_7);
+volatile int remain;
+
+void toggle_step() { //产生STEP脉冲信号
+ if(remain == 0)
+ return;
+ if(step){
+ step = 0; //STEP 1->0
+ remain--;
+ }else{
+ step = 1; //STEP 0->1
+ }
+}
+
+int main() {
+ ticker_step.attach(&toggle_step, 0.001);
+ en = 0; //Enable stepper driver
+
+ while (true) {
+ dir = 0;
+ remain = 100;
+ wait(1);
+ dir = 1;
+ remain = 100;
+ wait(1);
+ }
+}