#include "McuBspSys.h"

int McuBspSysInit(void)
{
    /* 底层库初始化 */
    HAL_Init();
    /* 系统时钟初始化 */
    McuBspSysClockInit();
    __HAL_RCC_PWR_CLK_ENABLE(); // 使能电压时钟（在进入低功耗时，如果使能电源时钟，可以降低10us左右的功耗）
    /* 特殊GPIO始终初始化(使用SWD调试，并开放JTAG的引脚) */
    __HAL_RCC_AFIO_CLK_ENABLE();
    __HAL_AFIO_REMAP_SWJ_NOJTAG();
    __HAL_AFIO_REMAP_PD01_ENABLE();
    __HAL_AFIO_REMAP_USART3_ENABLE();
    return 0;
}

void McuBspSysClockInit(void)
{
  RCC_ClkInitTypeDef clkinitstruct = {0};
  RCC_OscInitTypeDef oscinitstruct = {0};
  
  /* Configure PLL ------------------------------------------------------*/
  /* PLL configuration: PLLCLK = (HSE / 1) * PLLMUL = 8 * 9 = 72 MHz */
  /* PREDIV1 configuration: PREDIV1CLK = PLLCLK / HSEPredivValue = 72 / 1 = 72 MHz */
  /* Enable HSI and activate PLL with HSi_DIV2 as source */
  oscinitstruct.OscillatorType  = RCC_OSCILLATORTYPE_HSE;
  oscinitstruct.HSEState        = RCC_HSE_ON;
  oscinitstruct.LSEState        = RCC_LSE_OFF;
  oscinitstruct.HSIState        = RCC_HSI_OFF;
  oscinitstruct.LSIState        = RCC_LSI_OFF;
  oscinitstruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
  oscinitstruct.HSEPredivValue    = RCC_HSE_PREDIV_DIV1;
  oscinitstruct.PLL.PLLState    = RCC_PLL_ON;
  oscinitstruct.PLL.PLLSource   = RCC_PLLSOURCE_HSE;
  oscinitstruct.PLL.PLLMUL      = RCC_PLL_MUL9;
  if (HAL_RCC_OscConfig(&oscinitstruct)!= HAL_OK)
  {
    /* Initialization Error */
    while(1); 
  }

  /* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2 
     clocks dividers */
  clkinitstruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
  clkinitstruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  clkinitstruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  clkinitstruct.APB2CLKDivider = RCC_HCLK_DIV1;
  clkinitstruct.APB1CLKDivider = RCC_HCLK_DIV2;  
  if (HAL_RCC_ClockConfig(&clkinitstruct, FLASH_LATENCY_2)!= HAL_OK)
  {
    /* Initialization Error */
    while(1); 
  }
}

/* 底层硬件初始化 */
void HAL_MspInit(void)
{
    
}

/* 底层硬件反初始化 */
void HAL_MspDeInit(void)
{
    
}