rt-thread-official/bsp/stm32/stm32h750-artpi-h750/board/board.c

/*
 * Copyright (c) 2006-2022, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2019-10-26     zylx         first version
 */

#include "board.h"

/**
  * @brief System Clock Configuration
  * @retval None
  */
void SystemClock_Config(void)
{
    RCC_OscInitTypeDef RCC_OscInitStruct = {0};
    RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
    RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0};

    /** Supply configuration update enable
    */
    HAL_PWREx_ConfigSupply(PWR_LDO_SUPPLY);
    /** Configure the main internal regulator output voltage
    */
    __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE0);

    while(!__HAL_PWR_GET_FLAG(PWR_FLAG_VOSRDY)) {}

    /** Initializes the RCC Oscillators according to the specified parameters
    * in the RCC_OscInitTypeDef structure.
    */
    RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI48 | RCC_OSCILLATORTYPE_HSE;
    RCC_OscInitStruct.HSEState = RCC_HSE_ON;
    RCC_OscInitStruct.HSI48State = RCC_HSI48_ON;
    RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
    RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
    RCC_OscInitStruct.PLL.PLLM = 5;
    RCC_OscInitStruct.PLL.PLLN = 192;
    RCC_OscInitStruct.PLL.PLLP = 2;
    RCC_OscInitStruct.PLL.PLLQ = 2;
    RCC_OscInitStruct.PLL.PLLR = 2;
    RCC_OscInitStruct.PLL.PLLRGE = RCC_PLL1VCIRANGE_2;
    RCC_OscInitStruct.PLL.PLLVCOSEL = RCC_PLL1VCOWIDE;
    RCC_OscInitStruct.PLL.PLLFRACN = 0;

    if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
    {
        Error_Handler();
    }

    /** Initializes the CPU, AHB and APB buses clocks
    */
    RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_SYSCLK
                                  | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2
                                  | RCC_CLOCKTYPE_D3PCLK1 | RCC_CLOCKTYPE_D1PCLK1;
    RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
    RCC_ClkInitStruct.SYSCLKDivider = RCC_SYSCLK_DIV1;
    RCC_ClkInitStruct.AHBCLKDivider = RCC_HCLK_DIV2;
    RCC_ClkInitStruct.APB3CLKDivider = RCC_APB3_DIV2;
    RCC_ClkInitStruct.APB1CLKDivider = RCC_APB1_DIV2;
    RCC_ClkInitStruct.APB2CLKDivider = RCC_APB2_DIV2;
    RCC_ClkInitStruct.APB4CLKDivider = RCC_APB4_DIV2;

    if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_4) != HAL_OK)
    {
        Error_Handler();
    }

    PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_LTDC | RCC_PERIPHCLK_USART3
            | RCC_PERIPHCLK_UART4 | RCC_PERIPHCLK_SPI4
            | RCC_PERIPHCLK_SPI1 | RCC_PERIPHCLK_SDMMC
            | RCC_PERIPHCLK_ADC | RCC_PERIPHCLK_USB
            | RCC_PERIPHCLK_LPTIM1 | RCC_PERIPHCLK_FMC;
    PeriphClkInitStruct.PLL2.PLL2M = 2;
    PeriphClkInitStruct.PLL2.PLL2N = 64;
    PeriphClkInitStruct.PLL2.PLL2P = 2;
    PeriphClkInitStruct.PLL2.PLL2Q = 2;
    PeriphClkInitStruct.PLL2.PLL2R = 4;
    PeriphClkInitStruct.PLL2.PLL2RGE = RCC_PLL2VCIRANGE_3;
    PeriphClkInitStruct.PLL2.PLL2VCOSEL = RCC_PLL2VCOWIDE;
    PeriphClkInitStruct.PLL2.PLL2FRACN = 0;
    PeriphClkInitStruct.PLL3.PLL3M = 5;
    PeriphClkInitStruct.PLL3.PLL3N = 160;
    PeriphClkInitStruct.PLL3.PLL3P = 8;
    PeriphClkInitStruct.PLL3.PLL3Q = 8;
    PeriphClkInitStruct.PLL3.PLL3R = 24;
    PeriphClkInitStruct.PLL3.PLL3RGE = RCC_PLL3VCIRANGE_2;
    PeriphClkInitStruct.PLL3.PLL3VCOSEL = RCC_PLL3VCOWIDE;
    PeriphClkInitStruct.PLL3.PLL3FRACN = 0;
    PeriphClkInitStruct.FmcClockSelection = RCC_FMCCLKSOURCE_PLL2;
    PeriphClkInitStruct.SdmmcClockSelection = RCC_SDMMCCLKSOURCE_PLL2;
    PeriphClkInitStruct.Spi123ClockSelection = RCC_SPI123CLKSOURCE_PLL2;
    PeriphClkInitStruct.Spi45ClockSelection = RCC_SPI45CLKSOURCE_PLL3;
    PeriphClkInitStruct.Usart234578ClockSelection = RCC_USART234578CLKSOURCE_D2PCLK1;
    PeriphClkInitStruct.UsbClockSelection = RCC_USBCLKSOURCE_HSI48;
    PeriphClkInitStruct.Lptim1ClockSelection = RCC_LPTIM1CLKSOURCE_LSI;
    PeriphClkInitStruct.AdcClockSelection = RCC_ADCCLKSOURCE_PLL2;

    if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
    {
        Error_Handler();
    }

    /** Enable USB Voltage detector
    */
    HAL_PWREx_EnableUSBVoltageDetector();
}