MOtor control Pololu
Dependencies: Encoder HIDScope mbed-dsp mbed
Diff: main.cpp
- Revision:
- 5:06381e54b94a
- Parent:
- 4:1a53b06eeb7f
- Child:
- 6:0832c6c6bcba
diff -r 1a53b06eeb7f -r 06381e54b94a main.cpp --- a/main.cpp Mon Sep 29 21:07:58 2014 +0000 +++ b/main.cpp Mon Sep 29 21:20:29 2014 +0000 @@ -2,12 +2,12 @@ #include "encoder.h" #include "MODSERIAL.h" -#define K_P .01 -//0.007//0.0184997836671646 //0.015 -#define K_I 0.00 -//.000824387821287097 //0 -#define K_D .05 -//0.01//.0972091946803081 //0.077 +#define TSAMP 0.01 +#define K_P (10 *TSAMP) + +#define K_I (0.00 *TSAMP) + +#define K_D (5 *TSAMP) #define POT_AVG 50 void coerce(float * in, float min, float max); @@ -23,7 +23,6 @@ void potAverager(void) { - static uint16_t sample_index = 0; float voltage = potmeter.read()-.5; @@ -34,63 +33,8 @@ sample_index = 0; } -void bubblesort(float arr[], int size) -{ - int i,j; - float temp; - for ( i = 0 ; i <= (size/2)+1 ; i++ ) - { - for ( j = 0 ; j <= (size/2)+1 - i ; j++ ) - { - if ( arr[j] > arr[j + 1] ) - { - temp = arr[j] ; - arr[j] = arr[j + 1] ; - arr[j + 1] = temp ; - } - } - } -} - -void quicksort(float own_array[], int low, int high) -{ - int i = low; - int j = high; - int y = 0; - /* compare value */ - int z = own_array[(low + high) / 2]; - /* partition */ - do { - /* find member above ... */ - while(own_array[i] < z) i++; - - /* find element below ... */ - while(own_array[j] > z) j--; - - if(i <= j) { - /* swap two elements */ - y = own_array[i]; - own_array[i] = own_array[j]; - own_array[j] = y; - i++; - j--; - } - } while(i <= j); - - /* recurse */ - if(low <= j) - quicksort(own_array, low, j); - - if(i <= high) - quicksort(own_array, i, high); -} - float getpotAverage(void) { - //float own_array[POT_AVG]; - //memcpy(own_array, potsamples, sizeof(own_array)); - //bubblesort(own_array, POT_AVG-1); - //return own_array[POT_AVG/2]; uint16_t valuecounter; float sum = 0; for(valuecounter = 0 ; valuecounter < POT_AVG ; valuecounter++) @@ -110,7 +54,7 @@ potaverage.attach(potAverager,0.002); pc.baud(921600); Ticker looptimer; - looptimer.attach(setlooptimerflag,0.01); + looptimer.attach(setlooptimerflag,TSAMP); pc.printf("bla"); while(1) { float setpoint;