![](/media/cache/group/9e3cc099b3b04bca937a1cca1da81b19.jpg.50x50_q85.jpg)
Motor control
Dependencies: mbed QEI HIDScope biquadFilter MODSERIAL FastPWM
Diff: main.cpp
- Revision:
- 0:e4858e2df9c7
- Child:
- 1:08e8cc33fcae
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Fri Oct 11 09:40:16 2019 +0000 @@ -0,0 +1,78 @@ +#include "mbed.h" +//#include "HIDScope.h" +#include "QEI.h" +#include "MODSERIAL.h" +//#include "BiQuad.h" +#include "FastPWM.h" + +// Button and potmeter control +InterruptIn button1(D11); +InterruptIn button2(D10); +AnalogIn potmeter(A0); + +// Encoder +DigitalIn encA(D13); +DigitalIn encB(D12); +QEI encoder(D13,D12,NC,64,QEI::X4_ENCODING); + +// Motor +DigitalOut motor2Direction(D4); +FastPWM motor2Power(D5); +DigitalOut motor1Direction(D7); +FastPWM motor1Power(D6); + +//Motorcontrol +bool motordir; +double motorpwm; +double u; +double potValue; + +// PC connection +MODSERIAL pc(USBTX, USBRX); + +// Intializing tickers +Ticker motorTicker; +Ticker controlTicker; +Ticker directionTicker; + +const float PWM_period = 1e-6; + +volatile int counts; // Encoder counts +volatile int countsPrev = 0; +volatile int deltaCounts; + +// motor1Direction = 1; +volatile int motor1Toggle = 1; + +float factorin = 6.23185/64; // Convert encoder counts to angle in rad +float gearratio = 131.25; // Gear ratio of gearbox + +void motorControl() +{ + potValue= potmeter.read(); + u= (potValue*2)-1; + motorpwm= abs(u); + if (u<0){ + motordir= 0;} + else { + motordir= 1;} + motor1Power.pulsewidth(motorpwm * PWM_period * motor1Toggle); + motor1Direction= motordir; +} + + +int main() +{ + pc.baud(115200); + pc.printf("\r\nStarting...\r\n\r\n"); + + motor1Power.period(PWM_period); + motorTicker.attach(motorControl, 0.01); + + while (true) { + float potValue = potmeter.read(); // Read potmeter + + pc.printf("Potmeter: %f \r\n", potValue); + wait(0.5); + } +}