interrupt

/********************************** (C) COPYRIGHT *******************************
 * File Name          : main.c
 * Author             : WCH
 * Version            : V1.0.0
 * Date               : 2022/08/08
 * Description        : Main program body.
 *********************************************************************************
 * Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
 * Attention: This software (modified or not) and binary are used for
 * microcontroller manufactured by Nanjing Qinheng Microelectronics.
 *******************************************************************************/

#include <ch32v00x.h>
//#include "debug.h"


/* Global define */


/* Global Variable */

//Положение фаз в таблице синуса.
uint8_t Fase1= 0;
uint8_t Fase2= 20;
uint8_t Fase3= 40;
//Продолжительность аварийного торможения.
uint16_t cycle_stop= 0;
//Таблица ШИМ, минимальное значение 75 и максимальное не должно превышать 8000-75=7925,
//в 75 это 1/24000000*75= 3 микросекунды находится: 1 микросекунда это Dead-time + 2 микросекунды
//продолжительность HIN для IR2136( Data Sheet No. PD60166 revU, стр 5 под первой таблицей).*/
uint16_t Sin_pwm_tab[60]={ 4000, 4410, 4816, 5213, 5596, 5963, 6307, 6626, 6917, 7175, 7399, 7586, 7733, 7839, 7903, 7925,
7903, 7839, 7733, 7586, 7399, 7175, 6917, 6626, 6307, 5963, 5596, 5213, 4816, 4410, 4000, 3590, 3184, 2787, 2404, 2037, 1693,
1374, 1083, 825, 601, 414, 267, 161, 97, 75, 97, 161, 267, 414, 601, 825, 1083, 1374, 1693, 2037, 2404, 2787, 3184, 3590};

uint8_t cnt = 0;

void TIM1_UP_IRQHandler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
void EXTI7_0_IRQHandler (void) __attribute__((interrupt()));


void Gpio_Init(void)
{

    RCC->APB2PCENR  |= RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOC | RCC_APB2Periph_GPIOD;

    // T1CH1 (PD2 GPIO_Mode_AF_OUT)
    GPIOD->CFGLR  = (GPIOD->CFGLR & ~GPIO_CFGLR_CNF2) | GPIO_CFGLR_CNF2_1;
    GPIOD->CFGLR |= GPIO_CFGLR_MODE2;

    // T1CH1N (PD0 GPIO_Mode_AF_OUT)
    GPIOD->CFGLR  = (GPIOD->CFGLR & ~GPIO_CFGLR_CNF0) | GPIO_CFGLR_CNF0_1;
    GPIOD->CFGLR |= GPIO_CFGLR_MODE0;

    // T1CH2 (PA1 GPIO_Mode_AF_OUT)
    GPIOA->CFGLR  = (GPIOA->CFGLR & ~GPIO_CFGLR_CNF1) | GPIO_CFGLR_CNF1_1;
    GPIOA->CFGLR |= GPIO_CFGLR_MODE1;

    // T1CH2N (PA2 GPIO_Mode_AF_OUT)
    GPIOA->CFGLR  = (GPIOA->CFGLR & ~GPIO_CFGLR_CNF2) | GPIO_CFGLR_CNF2_1;
    GPIOA->CFGLR |= GPIO_CFGLR_MODE2;

    // T1CH3 (PC3 GPIO_Mode_AF_OUT)
    GPIOC->CFGLR  = (GPIOC->CFGLR & ~GPIO_CFGLR_CNF3) | GPIO_CFGLR_CNF3_1;
    GPIOC->CFGLR |= GPIO_CFGLR_MODE3;

    // T1CH3N (PD1 GPIO_Mode_AF_OUT)
    GPIOD->CFGLR  = (GPIOD->CFGLR & ~GPIO_CFGLR_CNF1) | GPIO_CFGLR_CNF1_1;
    GPIOD->CFGLR |= GPIO_CFGLR_MODE1;


    //PC1 (GPIO_Mode_OUT_PP)
    GPIOC->CFGLR  = (GPIOC->CFGLR & ~(GPIO_CFGLR_CNF1_0 | GPIO_CFGLR_CNF1_1));
    GPIOC->CFGLR |= GPIO_CFGLR_MODE1;
    GPIOC->BSHR = GPIO_BSHR_BR1;

}


void TIM1_Dead_Time_Init(u16 arr, u16 psc, u16 ccp)
{
    GPIO_InitTypeDef        GPIO_InitStructure = {0};
    TIM_OCInitTypeDef       TIM_OCInitStructure = {0};
    TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure = {0};
    TIM_BDTRInitTypeDef     TIM_BDTRInitStructure = {0};

    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD | RCC_APB2Periph_TIM1, ENABLE);

    /* TIM1_CH1 */
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOD, &GPIO_InitStructure);

    /* TIM1_CH1N */
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOD, &GPIO_InitStructure);

    TIM_TimeBaseInitStructure.TIM_Period = arr;
    TIM_TimeBaseInitStructure.TIM_Prescaler = psc;
    TIM_TimeBaseInitStructure.TIM_ClockDivision = TIM_CKD_DIV1;
    TIM_TimeBaseInitStructure.TIM_CounterMode = TIM_CounterMode_Up;
    TIM_TimeBaseInit(TIM1, &TIM_TimeBaseInitStructure);

    TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2;
    TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
    TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable;
    TIM_OCInitStructure.TIM_Pulse = ccp;
    TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low;
    TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_Low;
    TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Set;
    TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCNIdleState_Reset;
    TIM_OC1Init(TIM1, &TIM_OCInitStructure);

    TIM_BDTRInitStructure.TIM_OSSIState = TIM_OSSIState_Disable;
    TIM_BDTRInitStructure.TIM_OSSRState = TIM_OSSRState_Disable;
    TIM_BDTRInitStructure.TIM_LOCKLevel = TIM_LOCKLevel_OFF;
    TIM_BDTRInitStructure.TIM_DeadTime = 0xFF;
    TIM_BDTRInitStructure.TIM_Break = TIM_Break_Disable;
    TIM_BDTRInitStructure.TIM_BreakPolarity = TIM_BreakPolarity_High;
    TIM_BDTRInitStructure.TIM_AutomaticOutput = TIM_AutomaticOutput_Enable;
    TIM_BDTRConfig(TIM1, &TIM_BDTRInitStructure);

    TIM_CtrlPWMOutputs(TIM1, ENABLE);
    TIM_OC1PreloadConfig(TIM1, TIM_OCPreload_Disable);
    TIM_ARRPreloadConfig(TIM1, ENABLE);
    TIM_Cmd(TIM1, ENABLE);
}

void TIM1_Init(void){
     RCC->APB2PCENR |= RCC_APB2Periph_TIM1;

     TIM1->PSC = 2-1;                     // 48000000/2 = 24MHz -> i.e 1 tick = 41,67 ns
     TIM1->ATRLR = 8000-1;                // 48000000/(2*8000) = 3000 Гц
     TIM1->RPTCR = 0;
     TIM1->CTLR1 = TIM_ARPE;

     // конфигурация входов и режим работы PWM2
     TIM1->CHCTLR1 = ((TIM1->CHCTLR1) & ~TIM_CC1S) | TIM_OC1M;
     // определили активный уровень, включили выход
     TIM1->CCER    = TIM_CC1P | TIM_CC1E | TIM_CC1NP | TIM_CC1NE;
     // определили уровни в свободном состоянии
     TIM1->CTLR2 = ((TIM1->CTLR2) & ~TIM_OIS1N) | TIM_OIS1;

     TIM1->CH1CVR = 4000;

     TIM1->BDTR |= TIM_MOE;

     TIM1->DMAINTENR |= TIM_UIE;
     TIM1->CTLR1 |= TIM_CEN;

     NVIC_EnableIRQ(TIM1_UP_IRQn);
     //SetVTFIRQ((u32)TIM1_UP_IRQHandler, TIM1_UP_IRQn,1,ENABLE);
//////////////////////////////////////////////////////////////
     /****** PWM out TIM2_CH3 (PC0) ********************/
     //RCC->APB1PCENR |= RCC_APB2Periph_GPIOC;
     //GPIOC->CFGLR |= GPIO_CFGLR_MODE0;
     //GPIOC->CFGLR = (GPIOC->CFGLR & ~(GPIO_CFGLR_CNF0)) | GPIO_CFGLR_CNF0_1;
     //TIM2->CH3CVR = 500;
     //TIM2->CCER |= TIM_CC3E | TIM_CC3P;
     //PWM mode 2, прямой ШИМ 3 канал
     //TIM2->CHCTLR2 |= TIM_OC3M;
/////////////////////////////////////////////////////////////
}



void EXTI7_0_IRQHandler(void){

  EXTI->INTFR &= ~EXTI_INTF_INTF0;
  cnt += 10;
  //asm ("NOP");

}

void TIM1_UP_IRQHandler(){

    TIM1->INTFR &= ~TIM_UIF;
    GPIOC->OUTDR ^= GPIO_OUTDR_ODR1;

    EXTI->SWIEVR |= EXTI_SWIEVR_SWIEVR0;
    cnt++;
}

void EXTI_init(){

  RCC->APB2PCENR |= RCC_APB2Periph_AFIO;
  //AFIO->EXTICR |= AFIO_EXTICR1_EXTI0;
  EXTI->EVENR |= EXTI_EVENR_MR0;
  EXTI->INTENR |= EXTI_INTENR_MR0;
  NVIC_EnableIRQ(EXTI7_0_IRQn);

}


/*********************************************************************
 * @fn      main
 *
 * @brief   Main program.
 *
 * @return  none
 */
int main(void)
{

    Gpio_Init();

    //TIM1_Dead_Time_Init(100, 48 - 1, 50);

    TIM1_Init();
    EXTI_init();


    for(;;){

    }


}