/**
  ******************************************************************************
  * @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  PERIOD_VALUE       (uint32_t)(50 - 1)
#define  PULSE1_VALUE       10
#define  PULSE2_VALUE       20
#define  PULSE3_VALUE       30
#define  PULSE4_VALUE       40

/* Private variables ---------------------------------------------------------*/
TIM_HandleTypeDef    TimHandle;
TIM_OC_InitTypeDef sConfig;

/* 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();
  
  /* System clock configuration */
  APP_SystemClockConfig(); 
  
  TimHandle.Instance = TIM1;                                                  /* Select TIM1 */
  TimHandle.Init.Period            = 50;                                      /* Auto-reload value */
  TimHandle.Init.Prescaler         = 800 - 1;                                 /* Prescaler of 800-1 */
  TimHandle.Init.ClockDivision     = TIM_CLOCKDIVISION_DIV1;                  /* No clock division */
  TimHandle.Init.CounterMode       = TIM_COUNTERMODE_UP;                      /* Up counting */
  TimHandle.Init.RepetitionCounter = 1 - 1;                                   /* No repetition counting */
  TimHandle.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;          /* Auto-reload register not buffered */
  /* Initialize timer base */
  if (HAL_TIM_PWM_Init(&TimHandle) != HAL_OK)
  {
    APP_ErrorHandler();
  }
  
  sConfig.OCMode       = TIM_OCMODE_PWM1;                                     /* Configure as PWM1 output */
  sConfig.OCPolarity   = TIM_OCPOLARITY_HIGH;                                 /* OC channel output is active high level */
  sConfig.OCFastMode   = TIM_OCFAST_DISABLE;                                  /* Fast output mode is disabled */
  sConfig.OCNPolarity  = TIM_OCNPOLARITY_HIGH;                                /* OCN channel output is active high level */
  sConfig.OCNIdleState = TIM_OCNIDLESTATE_RESET;                              /* OC1N output is low in idle state */
  sConfig.OCIdleState  = TIM_OCIDLESTATE_RESET;                               /* OC1 output is low in idle state */

  sConfig.Pulse = PULSE1_VALUE;                                               /* CC1 value is 10, duty cycle = 10/50 = 20% */
  /* Configure channel 1 */
  if (HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_1) != HAL_OK)
  {
    APP_ErrorHandler();
  }
  sConfig.Pulse = PULSE2_VALUE;                                               /* CC2 value is 20, duty cycle = 20/50 = 40% */
  /* Configure channel 2 */
  if (HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_2) != HAL_OK)
  {
    APP_ErrorHandler();
  }
  sConfig.Pulse = PULSE3_VALUE;                                               /* CC3 value is 30, duty cycle = 30/50 = 60% */
  /* Configure channel 3 */
  if (HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_3) != HAL_OK)
  {
    /* Configuration Error */
    APP_ErrorHandler();
  }
  sConfig.Pulse = PULSE4_VALUE;                                               /* CC4 value is 40, duty cycle = 40/50 = 80% */
  /* Configure channel 4 */
  if (HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_4) != HAL_OK)
  {
    APP_ErrorHandler();
  }
  
  /* Start all channels' PWM output */
  if (HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_1) != HAL_OK)
  {
    APP_ErrorHandler();
  }
  if (HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_2) != HAL_OK)
  {
    APP_ErrorHandler();
  }
  if (HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_3) != HAL_OK)
  {
    APP_ErrorHandler();
  }
  if (HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_4) != HAL_OK)
  {
    APP_ErrorHandler();
  }

  while (1)
  {
  }
}

/**
  * @brief   System clock configuration function
  * @param   None
  * @retval  None
  */
static void APP_SystemClockConfig(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI \
                                   | RCC_OSCILLATORTYPE_LSI;  /* Configure HSI, LSI */
  RCC_OscInitStruct.HSIState = RCC_HSI_ON;                                             /* Enable HSI */
  RCC_OscInitStruct.HSIDiv = RCC_HSI_DIV1;                                             /* HSI no division */
  RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_8MHz;                     /* HSI calibration frequency of 8MHz */
  RCC_OscInitStruct.LSIState = RCC_LSI_OFF;                                            /* Disable LSI */
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_OFF;                                        /* Disable PLL */
  /* RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI; */                           /* Select HSI as PLL source */
  /* Configure oscillators */
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    APP_ErrorHandler();
  }

  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_PCLK1;/* Configure SYSCLK, HCLK, and PCLK */
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI;                                        /* Configure the system clock as HSI */
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;                                            /* AHB clock without division */
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;                                             /* APB clock without division */
  /* Configure clock source */
  if (HAL_RCC_ClockConfig(&RCC_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******************/
