/**
  ******************************************************************************
  * @file    main.c
  * @author  MCU Application Team
  * @brief   Main program body
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2023 Puya Semiconductor Co.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by Puya under BSD 3-Clause license,
  * the "License"; You may not use this file except in compliance with the
  * License. You may obtain a copy of the License at:
  *                        opensource.org/licenses/BSD-3-Clause
  *
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2016 STMicroelectronics.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by ST under BSD 3-Clause license,
  * the "License"; You may not use this file except in compliance with the
  * License. You may obtain a copy of the License at:
  *                        opensource.org/licenses/BSD-3-Clause
  *
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
#include "main.h"

/* Private define ------------------------------------------------------------*/
#define  PULSE1_VALUE       (uint32_t)(400) /* Capture Compare 1 Value  */

/* Private variables ---------------------------------------------------------*/
TIM_HandleTypeDef              TimHandle;
TIM_OC_InitTypeDef             sPWMConfig;
TIM_BreakDeadTimeConfigTypeDef sBreakConfig;

/* Private user code ---------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
static void APP_SystemClockConfig(void);

/**
  * @brief  Main program.
  * @retval int
  */
int main(void)
{
  /* Reset of all peripherals, Initializes the Systick. */
  HAL_Init();
  
  /* Configure system clock */
  APP_SystemClockConfig(); 

  /* Initialize PWM output */
  TimHandle.Instance = TIM1;                                                      /* Select TIM1 */
  TimHandle.Init.Period            = 800 - 1;                                     /* Auto reload value: 800-1 */
  TimHandle.Init.Prescaler         = 1000 - 1;                                    /* Prescaler:1000-1 */
  TimHandle.Init.ClockDivision     = TIM_CLOCKDIVISION_DIV1;                      /* Clock division: tDTS=tCK_INT */
  TimHandle.Init.CounterMode       = TIM_COUNTERMODE_UP;                          /* CounterMode:Up */
  TimHandle.Init.RepetitionCounter = 1 - 1;                                       /* Repetition counter value:1-1 */
  TimHandle.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;              /* TIM1_ARR register is not buffered */
  if (HAL_TIM_PWM_Init(&TimHandle) != HAL_OK)
  {
    APP_ErrorHandler();
  }

  sPWMConfig.OCMode       = TIM_OCMODE_PWM1;                                      /* Set as PWM1 mode */
  sPWMConfig.OCPolarity   = TIM_OCPOLARITY_HIGH;                                  /* Compare output polarity: HIGH */
  sPWMConfig.OCNPolarity  = TIM_OCNPOLARITY_HIGH;                                 /* Compare complementary output polarity: HIGH */
  sPWMConfig.OCIdleState  = TIM_OCIDLESTATE_RESET;                                /* Output Idle state: LOW */
  sPWMConfig.OCNIdleState = TIM_OCNIDLESTATE_RESET;                               /* Complementary output Idle state: LOW */
  sPWMConfig.OCFastMode   = TIM_OCFAST_DISABLE;                                   /* Output Compare fast disable */
  sPWMConfig.Pulse = PULSE1_VALUE;                                                /* Duty cycle of channel 1 */
  /* Configure Channel 1 */
  if (HAL_TIM_PWM_ConfigChannel(&TimHandle, &sPWMConfig, TIM_CHANNEL_1) != HAL_OK)
  {
    APP_ErrorHandler();
  }
  
  /* Configures the Break feature, dead time */
  sBreakConfig.BreakState       = TIM_BREAK_ENABLE;                               /* Break input BRK is enabled */
  sBreakConfig.DeadTime         = 160;                                            /* Dead time configuration:160 */
  sBreakConfig.OffStateRunMode  = TIM_OSSR_ENABLE;                                /* Off state in run mode: output enable */
  sBreakConfig.OffStateIDLEMode = TIM_OSSI_ENABLE;                                /* IDLE state in run mode: output enable */
  sBreakConfig.LockLevel        = TIM_LOCKLEVEL_OFF;                              /* LOCK off */
  sBreakConfig.BreakPolarity    = TIM_BREAKPOLARITY_HIGH;                         /* Break input BRK is active HIGH */
  sBreakConfig.AutomaticOutput  = TIM_AUTOMATICOUTPUT_ENABLE;                     /* Automatic output enable */
  /* Configures the Break feature, dead time */
  if (HAL_TIMEx_ConfigBreakDeadTime(&TimHandle, &sBreakConfig) != HAL_OK)
  {
    APP_ErrorHandler();
  }
  
  /* Channel 1 outputs PWM */
  if (HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_1) != HAL_OK)
  {
    APP_ErrorHandler();
  }
  /* Channel 1N outputs PWM */
  if (HAL_TIMEx_PWMN_Start(&TimHandle, TIM_CHANNEL_1) != HAL_OK)
  {
    APP_ErrorHandler();
  }

  /* Infinite loop */
  while (1)
  {
  }
}

/**
  * @brief  System Clock Configuration
  * @param  None
  * @retval None
  */
static void APP_SystemClockConfig(void)
{
  RCC_OscInitTypeDef  OscInitstruct = {0};
  RCC_ClkInitTypeDef  ClkInitstruct = {0};
  
  OscInitstruct.OscillatorType      = RCC_OSCILLATORTYPE_HSE | RCC_OSCILLATORTYPE_HSI | RCC_OSCILLATORTYPE_LSE | 
                                      RCC_OSCILLATORTYPE_LSI;
  OscInitstruct.HSIState            = RCC_HSI_ON;                               /* Enable HSI */
  OscInitstruct.HSIDiv              = RCC_HSI_DIV1;                             /* HSI 1 frequency division */
  OscInitstruct.HSICalibrationValue = RCC_HSICALIBRATION_8MHz;                  /* Configure HSI clock 8MHz */
  OscInitstruct.HSEState            = RCC_HSE_OFF;                              /* Close HSE */
/* OscInitstruct.HSEFreq             = RCC_HSE_24_32MHz; */                     /* Choose HSE frequency of 24-32MHz */
  OscInitstruct.LSEState            = RCC_LSE_OFF;                              /* Close LSE */
/* OscInitstruct.LSEDriver           = RCC_LSEDRIVE_HIGH; */                    /* Drive capability level: high */
  OscInitstruct.LSIState            = RCC_LSI_OFF;                              /* Close LSI */
  OscInitstruct.PLL.PLLState        = RCC_PLL_OFF;                              /* Close PLL */
/* OscInitstruct.PLL.PLLSource       = RCC_PLLSOURCE_HSI; */                    /* PLL clock source selection HSI */
/* OscInitstruct.PLL.PLLMUL          = RCC_PLL_MUL16; */                        /* PLL clock source 16-fold frequency */
  /* Configure oscillator */
  if(HAL_RCC_OscConfig(&OscInitstruct) != HAL_OK)
  {
    APP_ErrorHandler();
  }
  
  ClkInitstruct.ClockType       = RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2;
  ClkInitstruct.SYSCLKSource    = RCC_SYSCLKSOURCE_HSISYS;              /* System clock selection HSISYS */
  ClkInitstruct.AHBCLKDivider   = RCC_SYSCLK_DIV1;                      /* AHB clock 1 division */
  ClkInitstruct.APB1CLKDivider  = RCC_HCLK_DIV1;                        /* APB1 clock 1 division */
  ClkInitstruct.APB2CLKDivider  = RCC_HCLK_DIV1;                        /* APB2 clock 1 division */
  /* Configure Clock */
  if(HAL_RCC_ClockConfig(&ClkInitstruct, FLASH_LATENCY_0) != HAL_OK)
  {
    APP_ErrorHandler();
  }
}

/**
  * @brief  This function is executed in case of error occurrence.
  * @param  None
  * @retval None
  */
void APP_ErrorHandler(void)
{
  /* Infinite loop */
  while (1)
  {
  }
}

#ifdef  USE_FULL_ASSERT
/**
  * @brief  Reports the name of the source file and the source line number
  *         where the assert_param error has occurred.
  * @param  file: pointer to the source file name
  * @param  line: assert_param error line source number
  * @retval None
  */
void assert_failed(uint8_t *file, uint32_t line)
{
  /* User can add his own implementation to report the file name and line number,
     for example: printf("Wrong parameters value: file %s on line %d\r\n", file, line)  */
  /* Infinite loop */
  while (1)
  {
  }
}
#endif /* USE_FULL_ASSERT */

/************************ (C) COPYRIGHT Puya *****END OF FILE******************/
