Simple DC motor control commands for driving DC motor conroller with PWM and up to 2 direction signals (complementary). Takes float value from -1.0 to 1.0.
Dependents: Teensy_Mot_QEI_Ser_20180111 Axis Axis_20181108 Axis_version2
Fork of MotCon by
Overloaded class that takes a pwm motor control pin and one or two direction pins for driving DC motors with a variety of motor control IC's. Tested examples include the LM298, TD340, MC33926, A3949.
Diff: MotCon.cpp
- Revision:
- 0:3ba12980833b
- Child:
- 1:69e79f1db999
diff -r 000000000000 -r 3ba12980833b MotCon.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/MotCon.cpp Mon Aug 31 17:13:55 2015 +0000 @@ -0,0 +1,29 @@ +#include "MotCon.h" + +//Constructor +MotCon::MotCon(PinName pwm, PinName dir) : _pwm(pwm), _dir(dir) { + _pwm.period_us(50); + _pwm = 0.0; + _dir = 0; +} + +// dc is signed duty cycle (+/-1.0) +void MotCon::mot_control(float dc){ + if(dc>1.0) + dc=1.0; + if(dc<-1.0) + dc=-1.0; + + if(dc > 0.001){ + _dir = 0; + _pwm = dc; + } + else if(dc < -0.001){ + _dir = 1; + _pwm = abs(dc); + } + else{ + _dir = 0; + _pwm = 0.0; + } +}