chen ada / MOTOR

a dc_motor drive lib use two PWM IO to drive the dc_motor

Dependents:   Nucleo_F411RE_OS_Robot_Tank

Diff: motodriver.cpp

Revision:
1:d31307e787fd
Parent:
0:cd71771d494f
--- a/motodriver.cpp	Tue Jun 19 08:50:21 2018 +0000
+++ b/motodriver.cpp	Tue Jun 19 12:24:42 2018 +0000
@@ -9,11 +9,11 @@
 void Motor::init()
 {
     // Set initial condition of PWM
-    _pwm1.period(0.001);
+    _pwm1.period(0.001);  //初始化PWM的周期,参数的单位是s,0.001s=1ms,所以PWM周期是1KHz
     _pwm1 = 0;
     
     // Set initial condition of PWM
-    _pwm2.period(0.001);
+    _pwm2.period(0.001);  //初始化PWM的周期,参数的单位是s,0.001s=1ms,所以PWM周期是1KHz
     _pwm2 = 0;
 }