#include "mcu_init.h"

static void GPIO_CLK_Init(void);

void board_init(void)
{
  HAL_Init();
  GPIO_CLK_Init();
  /* 配置系统时钟为180 MHz */
  SystemClock_Config();
	/* 初始化RGB彩灯 */
  LED_GPIO_Config();
  /*初始化USART 配置模式为 115200 8-N-1，中断接收*/
  DEBUG_USART_Config();
}

/**
  * @brief  系统时钟配置
  *            System Clock source            = PLL (HSE)
  *            SYSCLK(Hz)                     = 180000000
  *            HCLK(Hz)                       = 180000000
  *            AHB Prescaler                  = 1
  *            APB1 Prescaler                 = 4
  *            APB2 Prescaler                 = 2
  *            HSE Frequency(Hz)              = 25000000
  *            PLL_M                          = 25
  *            PLL_N                          = 360
  *            PLL_P                          = 2
  *            PLL_Q                          = 7
  *            VDD(V)                         = 3.3
  *            Main regulator output voltage  = Scale1 mode
  *            Flash Latency(WS)              = 5
  * @param  无
  * @retval 无
  */
void SystemClock_Config(void)
{
  RCC_ClkInitTypeDef RCC_ClkInitStruct;
  RCC_OscInitTypeDef RCC_OscInitStruct;

  /* Enable Power Control clock */
  __HAL_RCC_PWR_CLK_ENABLE();

  /* 使能HSE，配置HSE为PLL的时钟源，配置PLL的各种分频因子M N P Q
	 * PLLCLK = HSE/M*N/P = 25M / 25 *432 / 2 = 216M
	 */
  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);

  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
  RCC_OscInitStruct.PLL.PLLM = 25;
  RCC_OscInitStruct.PLL.PLLN = 360;
  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
  RCC_OscInitStruct.PLL.PLLQ = 7;
  if(HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
   while(1) {}
  }

  /* 激活 OverDrive 模式 */
  HAL_PWREx_EnableOverDrive();

  /* 选择PLLCLK作为SYSCLK，并配置 HCLK, PCLK1 and PCLK2 的时钟分频因子
	 * SYSCLK = PLLCLK     = 180M
	 * HCLK   = SYSCLK / 1 = 180M
	 * PCLK2  = SYSCLK / 2 = 90M
	 * PCLK1  = SYSCLK / 4 = 45M
	 */
  RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
  if(HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5) != HAL_OK)
  {
    while(1) {}
  }

  HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);
  HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
  /* SysTick_IRQn interrupt configuration */
  HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
}


/**
  * @brief GPIO Initialization Function
  * @param None
  * @retval None
  */
static void GPIO_CLK_Init(void)
{

  /* GPIO Ports Clock Enable */
  __HAL_RCC_GPIOH_CLK_ENABLE();
  __HAL_RCC_GPIOC_CLK_ENABLE();
  __HAL_RCC_GPIOA_CLK_ENABLE();
  __HAL_RCC_GPIOB_CLK_ENABLE();
  __HAL_RCC_GPIOG_CLK_ENABLE();
  __HAL_RCC_GPIOI_CLK_ENABLE();
}