Austin Brown
Mike Etek Controller
Diff: Inverter/Inverter.cpp
- Revision:
- 1:94193b31f0ee
- Parent:
- 0:9edd6ec0f56a
--- a/Inverter/Inverter.cpp Sat May 20 21:42:20 2017 +0000
+++ b/Inverter/Inverter.cpp Sat Apr 06 02:16:12 2019 +0000
@@ -1,96 +1,111 @@
+#include "Inverter.h"
-#include "mbed.h"
-#include "hw_pins.h"
-//#include "hw_config.h"
-#include "structs.h"
-#include "FastPWM.h"
+
+
+//Condensing all hardware related variables into just this file.
+//This includes all the register diddling, assigning duty cycles, etc.
+//should probably have a class called "inverter" but thats a lot of effort
+
+Inverter::Inverter(){
-void Init_PWM(GPIOStruct *gpio){
- printf("\nStarting Hardware Function\n\r");
+ }
+
+void Inverter::Init_PWM(void){
- RCC->AHB1ENR |= RCC_AHB1ENR_GPIOCEN; // enable the clock to GPIOC
- RCC->APB1ENR |= 0x00000001; // enable TIM2 clock
- RCC->APB2ENR |= RCC_APB2ENR_TIM1EN; // enable TIM1 clock
+ printf("\nStarting Hardware PWM\n\r");
- GPIOC->MODER |= (1 << 10); // set pin 5 to be general purpose output for LED
+ RCC->AHBENR |= RCC_AHBENR_GPIOAEN; // enable the clock to GPIOA
+ RCC->APB2ENR |= RCC_APB2ENR_TIM1EN; // enable TIM1 clock
- //gpio->enable = new DigitalOut(ENABLE_PIN);
- gpio->pwm_ul = new FastPWM(PIN_AL);
- gpio->pwm_vl = new FastPWM(PIN_BL);
- gpio->pwm_wl = new FastPWM(PIN_CL);
- gpio->pwm_uh = new FastPWM(PIN_AH);
- gpio->pwm_vh = new FastPWM(PIN_BH);
- gpio->pwm_wh = new FastPWM(PIN_CH);
-
- gpio->phasing = 1;
-
- //ISR Setup
-
- NVIC_EnableIRQ(TIM1_UP_TIM10_IRQn); //Enable TIM1 IRQ
+ //PWM Setup
+ TIM1->CCMR1 |= 0x0070; // Enable output compare 1 PWM mode 2 (inverted for low side shunts)
+ TIM1->CCER |= TIM_CCER_CC1E; // enable outputs 1
+ //no dead time needed!
+ TIM1->BDTR |= TIM_BDTR_MOE; //main output enable = 1
+ TIM1->PSC = 0x0; // no prescaler
+ TIM1->ARR = PWM_ARR; // set auto reload, 20 khz
+ TIM1->CR1 |= TIM_CR1_ARPE; // autoreload on,
+ RCC->CFGR3 |= RCC_CFGR3_TIM1SW; // bump tim1 up to 144MHz
- TIM1->DIER |= TIM_DIER_UIE; // enable update interrupt
- TIM1->CR1 = 0x40; // CMS = 10, interrupt only when counting up
- TIM1->CR1 |= TIM_CR1_UDIS;
- TIM1->CR1 |= TIM_CR1_ARPE; // autoreload on,
- TIM1->RCR |= 0x001; // update event once per up/down count of tim1
+ //hardware pin setup
+ GPIOA->MODER |= GPIO_MODER_MODER8_1 ;
+ GPIOA->AFR[1] |= 0x00000006; // PA8 to alternate function 6
+
+ //interrupt generation
+ NVIC_EnableIRQ(TIM1_UP_TIM16_IRQn); //Enable TIM1 IRQ //dafuq is this TIM16 BS?
+ TIM1->DIER |= TIM_DIER_UIE; // enable update interrupt
+ TIM1->CR1 |= 0x40; //CMS = 10, interrupt only when counting up
+ TIM1->RCR |= 0x001; // update event once per up/down count of tim1
TIM1->EGR |= TIM_EGR_UG;
-
- //PWM Setup
- 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->BDTR |= TIM_BDTR_MOE;
- //TIM1->BDTR |= TIM_BDTR_OSSI;
- //TIM1->BDTR |= TIM_BDTR_OSSR;
- TIM1->BDTR |= 0xBF;
- TIM1->CCER |= TIM_CCER_CC1E | TIM_CCER_CC1NE | TIM_CCER_CC2E | TIM_CCER_CC2NE | TIM_CCER_CC3E | TIM_CCER_CC3NE;
- //TIM1->CCER |= ~TIM_CCER_CC1NP; //Interupt when low side is on.
- //TIM1->CCER |= TIM_CCER_CC1NP;
- TIM1->CR1 |= TIM_CR1_CEN;
-
+ TIM1->CR1 |= TIM_CR1_CEN; //go!
}
-void Init_ADC(void){
+void Inverter::Init_ADC(void){
// ADC Setup
- RCC->APB2ENR |= RCC_APB2ENR_ADC2EN; // clock for ADC2
- RCC->APB2ENR |= RCC_APB2ENR_ADC1EN; // clock for ADC1
- RCC->AHB1ENR |= RCC_AHB1ENR_GPIOCEN; // 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 this is the V phase
- ADC2->CR2 |= ADC_CR2_ADON;//0x00000001; // ADC1 ON
- ADC2->SQR3 = 0x0000000B; // use PC_1 as input. This is the U phase
- GPIOC->MODER |= 0x0000000f; // Alternate function, PC_0, PC_1 are analog inputs
+ RCC->AHBENR |= RCC_AHBENR_GPIOAEN;
+ RCC->AHBENR |= RCC_AHBENR_GPIOBEN;
+ RCC->AHBENR |= RCC_AHBENR_ADC12EN; // clock for ADC1 and 2 enable
+ //RCC->AHBENR |= RCC_AHBENR_GPIOAEN; //page 149 on the ref manual
+
+ ADC12_COMMON->CCR |= 0x20001; // Regular simultaneous mode plus injected conversions
+
+
+ //for board 3
+ ADC1->SQR1 = 0x40; // use PA_0 as input, ADC1 in1
+ ADC2->SQR1 = 0x40; // use PA_4 as input, ADC2 in1
+ GPIOA->MODER |= 0x00000303; // Alternate function, PA_0, PA_4 are analog inputs
- }
+ ADC1->SMPR1 = 32; //19.5 adc cock cycles for sample
+ ADC2->SMPR1 = 32; //19.5 adc cock cycles for sample.
+
+ ADC2->CR |= ADC_CR_ADEN;
+ ADC1->CR |= ADC_CR_ADEN;
+
+ wait_ms(10);
-void Init_DAC(void){
- RCC->APB1ENR |= 0x20000000; // Enable clock for DAC
- DAC->CR |= 0x00000001; // DAC control reg, both channels ON
- GPIOA->MODER |= 0x00000300; // PA04 as analog output
- }
+}
+
-void Init_All_HW(GPIOStruct *gpio){
+
+
+void Inverter::Init(){
wait_ms(100);
Init_ADC();
wait(0.1);
+ Init_PWM();
- //Init_DAC();
- wait(0.1);
+ }
- Init_PWM(gpio);
+void Inverter::zero_current(){
+ int adc1_offset_s = 0;
+ int adc2_offset_s = 0;
+ int n = 1024;
+ for (int i = 0; i<n; i++){
+ ADC1->CR |= ADC_CR_ADSTART;
+ //wait_us(5);
+ for (volatile int t = 0; t < 16; t++) {}
+ adc2_offset_s += ADC2->DR;
+ adc1_offset_s += ADC1->DR;
+ }
+ adc1_offset = adc1_offset_s/n;
+ adc2_offset = adc2_offset_s/n;
+
+ }
- }
\ No newline at end of file
+void Inverter::ADCsync() {
+ //EXTEN[1:0] = 01
+ //EXTSEL[3:0] = 1010
+
+ //this code works to slave to center of TIM1 update
+ ADC1->CFGR |= ADC_CFGR_EXTEN_0 | ADC_CFGR_EXTEN_1;
+ ADC1->CFGR |= ADC_CFGR_EXTSEL_3 | ADC_CFGR_EXTSEL_1;
+ TIM1->CR2 |= TIM_CR2_MMS2_1;
+ ADC1->CR |= ADC_CR_ADSTART;
+}
+
+
+
\ No newline at end of file