123
Dependencies: mbed-dev-f303 FastPWM3
Diff: FOC/foc.cpp
- Revision:
- 27:501fee691e0e
- Parent:
- 26:2b865c00d7e9
- Child:
- 28:8c7e29f719c5
--- a/FOC/foc.cpp Mon May 01 15:22:58 2017 +0000 +++ b/FOC/foc.cpp Wed May 17 14:53:22 2017 +0000 @@ -1,4 +1,5 @@ #include "user_config.h" +#include "hw_config.h" #include "foc.h" #include "FastMath.h" @@ -44,9 +45,9 @@ int adc2_offset = 0; int n = 1024; for (int i = 0; i<n; i++){ // Average n samples of the ADC - TIM1->CCR3 = 0x708*(1.0f); // Write duty cycles - TIM1->CCR2 = 0x708*(1.0f); - TIM1->CCR1 = 0x708*(1.0f); + TIM1->CCR3 = (PWM_ARR>>1)*(1.0f); // Write duty cycles + TIM1->CCR2 = (PWM_ARR>>1)*(1.0f); + TIM1->CCR1 = (PWM_ARR>>1)*(1.0f); ADC1->CR2 |= 0x40000000; // Begin sample and conversion wait(.001); adc2_offset += ADC2->DR; @@ -79,7 +80,7 @@ float s = FastSin(theta); float c = FastCos(theta); //dq0(controller->theta_elec, controller->i_a, controller->i_b, controller->i_c, &controller->i_d, &controller->i_q); //dq0 transform on currents - controller->i_d = 0.6666667f*(c*controller->i_a + (0.86602540378f*s-.5f*c)*controller->i_b + (-0.86602540378f*s-.5f*c)*controller->i_c); ///Fast DQ0 Transform + controller->i_d = 0.6666667f*(c*controller->i_a + (0.86602540378f*s-.5f*c)*controller->i_b + (-0.86602540378f*s-.5f*c)*controller->i_c); ///Faster DQ0 Transform controller->i_q = 0.6666667f*(-s*controller->i_a - (-0.86602540378f*c-.5f*s)*controller->i_b - (0.86602540378f*c-.5f*s)*controller->i_c); ///Cogging compensation lookup, doesn't actually work yet/// //int ind = theta * (128.0f/(2.0f*PI)); @@ -107,21 +108,21 @@ limit_norm(&controller->v_d, &controller->v_q, controller->v_bus); // Normalize voltage vector to lie within curcle of radius v_bus //abc(controller->theta_elec, controller->v_d, controller->v_q, &controller->v_u, &controller->v_v, &controller->v_w); //inverse dq0 transform on voltages - controller->v_u = c*controller->v_d - s*controller->v_q; + controller->v_u = c*controller->v_d - s*controller->v_q; // Faster Inverse DQ0 transform controller->v_v = (0.86602540378f*s-.5f*c)*controller->v_d - (-0.86602540378f*c-.5f*s)*controller->v_q; controller->v_w = (-0.86602540378f*s-.5f*c)*controller->v_d - (0.86602540378f*c-.5f*s)*controller->v_q; svm(controller->v_bus, controller->v_u, controller->v_v, controller->v_w, &controller->dtc_u, &controller->dtc_v, &controller->dtc_w); //space vector modulation if(PHASE_ORDER){ // Check which phase order to use, - TIM1->CCR3 = 0x708*(1.0f-controller->dtc_u); // Write duty cycles - TIM1->CCR2 = 0x708*(1.0f-controller->dtc_v); - TIM1->CCR1 = 0x708*(1.0f-controller->dtc_w); + TIM1->CCR3 = (PWM_ARR>>1)*(1.0f-controller->dtc_u); // Write duty cycles + TIM1->CCR2 = (PWM_ARR>>1)*(1.0f-controller->dtc_v); + TIM1->CCR1 = (PWM_ARR>>1)*(1.0f-controller->dtc_w); } else{ - TIM1->CCR3 = 0x708*(1.0f-controller->dtc_u); - TIM1->CCR1 = 0x708*(1.0f-controller->dtc_v); - TIM1->CCR2 = 0x708*(1.0f-controller->dtc_w); + TIM1->CCR3 = (PWM_ARR>>1)*(1.0f-controller->dtc_u); + TIM1->CCR1 = (PWM_ARR>>1)*(1.0f-controller->dtc_v); + TIM1->CCR2 = (PWM_ARR>>1)*(1.0f-controller->dtc_w); } controller->theta_elec = theta; //For some reason putting this at the front breaks thins