Important changes to repositories hosted on mbed.com
Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.
To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.
It is also possible to export all your personal repositories from the account settings page.
Dependencies: mbed-dev-f303 FastPWM3
Diff: Inverter/Inverter.cpp
- Revision:
- 20:bf9ea5125d52
- Parent:
- 19:bd10a04eedc2
- Child:
- 21:7d1f0a206668
--- a/Inverter/Inverter.cpp Tue Feb 14 03:28:16 2017 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,118 +0,0 @@
-#include "mbed.h"
-#include "FastPWM.h"
-#include "Inverter.h"
-
-Inverter::Inverter(PinName PinA, PinName PinB, PinName PinC, PinName PinEnable, float I_Scale, float Period){
-
- _I_Scale = I_Scale;
-
-
- Enable = new DigitalOut(PinEnable);
-
- RCC->AHB1ENR |= RCC_AHB1ENR_GPIOCEN; // enable the clock to GPIOC
- //RCC->APB1ENR |= 0x00000001; // enable TIM2 clock
- RCC->APB2ENR |= RCC_APB2ENR_TIM1EN; // enable TIM1 clock
-
- GPIOC->MODER = (1 << 8); // set pin 4 to be general purpose output
-
- PWM_A = new FastPWM(PinA);
- PWM_B = new FastPWM(PinB);
- PWM_C = new FastPWM(PinC);
-
- //TIM2->CR1 &= ~(TIM_CR1_CEN);
- //TIM2->CR1 |= TIM_CR1_CMS;
- //TIM2->CR1 |= TIM_CR1_CEN;
-
- //PWM_A->period(Period);
-
- //ISR Setup
- NVIC_EnableIRQ(TIM1_UP_TIM10_IRQn); //Enable TIM1 IRQ
-
- TIM1->DIER |= TIM_DIER_UIE; // enable update interrupt
- TIM1->CR1 = 0x40;//CMS = 10, interrupt only when counting up
- TIM1->CR1 |= TIM_CR1_ARPE; // autoreload on,
- TIM1->RCR |= 0x001; // update event once per up/down count of tim1
- TIM1->EGR |= TIM_EGR_UG;
-
- //PWM Setup
-
- TIM1->PSC = 0x0; // no prescaler, timer counts up in sync with the peripheral clock
- //TIM1->ARR = 0x1194; // 20 Khz
- TIM1->ARR = 0x8CA;
- TIM1->CCER |= ~(TIM_CCER_CC1NP); //Interupt when low side is on.
- TIM1->CR1 |= TIM_CR1_CEN;
-
- // ADC Setup
- RCC->APB2ENR |= RCC_APB2ENR_ADC2EN; // clock for ADC2
- RCC->APB2ENR |= RCC_APB2ENR_ADC1EN; // clock for ADC1
- RCC->AHB1ENR |= RCC_AHB1ENR_GPIOCEN;//0x0000002; // Enable clock for GPIOC
-
- ADC->CCR = 0x00000006; // Regular simultaneous mode only
- ADC1->CR2 |= ADC_CR2_ADON;//0x00000001; // ADC1 ON
- ADC1->SQR3 = 0x000000A; // use PC_0 as input
- ADC2->CR2 |= ADC_CR2_ADON;//0x00000001; // ADC1 ON
- ADC2->SQR3 = 0x0000000B; // use PC_1 as input
- GPIOC->MODER |= 0x0000000f; // PC_0, PC_1 are analog inputs
-
- // DAC set-up
- RCC->APB1ENR |= 0x20000000; // Enable clock for DAC
- DAC->CR |= 0x00000001; // DAC control reg, both channels ON
- GPIOA->MODER |= 0x00000300; // PA04 as analog output
-
-
- //Enabled pin must be on for current sensors to turn on
- EnableInverter();
- SetDTC(0.0f, 0.0f, 0.0f);
- wait(.2);
- ZeroCurrent();
- wait(.1);
- DisableInverter();
- }
-
-void Inverter::SetDTC(float DTC_A, float DTC_B, float DTC_C){
- PWM_A->write(1.0f-DTC_A);
- PWM_B->write(1.0f-DTC_B);
- PWM_C->write(1.0f-DTC_C);
- }
-
-void Inverter::EnableInverter(){
- Enable->write(1);
- }
-
-void Inverter::DisableInverter(){
- Enable->write(0);
- }
-
-void Inverter::ZeroCurrent(){
- I_B_Offset = 0;
- I_C_Offset = 0;
- for (int i=0; i < 1000; i++){
- I_B_Offset += ADC2->DR;
- I_C_Offset += ADC1->DR;
- ADC1->CR2 |= 0x40000000;
- wait(.0001);
- }
- I_B_Offset = I_B_Offset/1000.0f;
- I_C_Offset = I_C_Offset/1000.0f;
- //printf("B_Offset: %f C_Offset: %f\n\r", I_B_Offset, I_C_Offset);
- }
-
-void Inverter::GetCurrent(float *A, float *B, float *C){
- *A = I_A;
- *B = I_B;
- *C = I_C;
- //printf("I_A: %f I_B: %f I_C: %f\n\r", I_A, I_B, I_C);
- }
-
-void Inverter::SampleCurrent(void){
- // Dbg->write(1);
- GPIOC->ODR ^= (1 << 4); //Toggle pin for debugging
- I_B = _I_Scale*((float) (ADC2->DR) - I_B_Offset);
- I_C = _I_Scale*((float) (ADC1->DR)- I_C_Offset);
- I_A = -I_B - I_C;
- //DAC->DHR12R1 = ADC2->DR;
- //DAC->DHR12R1 = TIM3->CNT>>2;//ADC2->DR; // pass ADC -> DAC, also clears EOC flag
- ADC1->CR2 |= 0x40000000;
- GPIOC->ODR ^= (1 << 4); //toggle pin for debugging
- }
-