Diff: pwmsample.cpp

Revision:

0:49d1f99282d0

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/pwmsample.cpp	Thu Jul 02 09:30:43 2020 +0000
@@ -0,0 +1,63 @@
+#include "mbed.h"
+#define T 50 //周期(us)(period_usを使った場合)
+//#define H_MIN 1000 
+//#define H_MAX 2500 
+#define HIGH 1
+#define LOW 0
+
+PwmOut     pin0(D2);
+DigitalOut pin1(D3);
+PwmOut     pin2(D9);
+DigitalOut pin3(D8);
+//AnalogIn analog_value(A1);
+
+DigitalOut myled(LED1);
+
+int main() {
+    //float anlgIn;
+    int pwmWidth = 45;//PWMのパルスにおけるオン時間(us)(pulsewidth_usを使った場合)
+    pin0.period_us(T);//周波数の設定 ex)period_usの場合、T=100(us)→周波数f=1/T=10(kHz))
+    pin0.pulsewidth_us(0);
+    pin2.period_us(T);//周波数の設定
+    pin2.pulsewidth_us(0);
+  
+    while(1) {
+        //for (int i=0;i<=20;i++){
+            //anlgIn = 0.3;
+            //pwmWidth = (H_MAX-H_MIN)*anlgIn + H_MIN;
+            //前転
+            pin0.pulsewidth_us(pwmWidth);// pwmWidth/T*100(%)のデューティ比でPWMパルスを指定ピンから出力
+            pin1 = HIGH;
+            pin2 = LOW;
+            pin3 = LOW;
+            
+            wait_ms(1500);
+            
+            
+            
+            //後転
+            pin0 = LOW;
+            pin1 = LOW;
+            pin2.pulsewidth_us(pwmWidth);
+            pin3 = HIGH;
+            //printf("スイッチング周波数(kHz): %d\n",1000/T);
+            //printf("デューティ比: %d\n",pwmWidth/T*100);
+            //myled = !myled;   //change the mode of LED1 ここにピンのオンオフやらを入れればいいはず(digitalWrite)
+            
+            wait_ms(1500);
+            
+            
+            
+            /*
+            pin0 = LOW;
+            pin1 = HIGH;
+            pin2 = LOW;
+            pin3 = HIGH;
+            
+            wait_ms(1500);
+            */
+            
+            
+        //}
+    }
+}
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