56 lines
2.0 KiB
C
56 lines
2.0 KiB
C
#include "stm32h7xx_hal.h"
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static void Error_Handler(void) {
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for (;;) {
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/* -- */
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}
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}
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void BOARD_InitBootClocks(void) {
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RCC_OscInitTypeDef RCC_OscInitStruct = {0};
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RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
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/** Supply configuration update enable
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*/
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HAL_PWREx_ConfigSupply(PWR_LDO_SUPPLY);
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/** Configure the main internal regulator output voltage
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*/
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__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE2);
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while (!__HAL_PWR_GET_FLAG(PWR_FLAG_VOSRDY)) {
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}
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/** Macro to configure the PLL clock source
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*/
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__HAL_RCC_PLL_PLLSOURCE_CONFIG(RCC_PLLSOURCE_HSE);
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/** Initializes the RCC Oscillators according to the specified parameters
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* in the RCC_OscInitTypeDef structure.
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*/
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RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI | RCC_OSCILLATORTYPE_HSE;
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RCC_OscInitStruct.HSEState = RCC_HSE_ON;
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RCC_OscInitStruct.HSIState = RCC_HSI_DIV1;
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RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
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RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
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RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
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if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) {
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Error_Handler();
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}
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/** Initializes the CPU, AHB and APB buses clocks
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*/
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RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_PCLK1 |
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RCC_CLOCKTYPE_PCLK2 | RCC_CLOCKTYPE_D3PCLK1 | RCC_CLOCKTYPE_D1PCLK1;
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RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI;
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RCC_ClkInitStruct.SYSCLKDivider = RCC_SYSCLK_DIV1;
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RCC_ClkInitStruct.AHBCLKDivider = RCC_HCLK_DIV1;
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RCC_ClkInitStruct.APB3CLKDivider = RCC_APB3_DIV1;
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RCC_ClkInitStruct.APB1CLKDivider = RCC_APB1_DIV1;
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RCC_ClkInitStruct.APB2CLKDivider = RCC_APB2_DIV1;
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RCC_ClkInitStruct.APB4CLKDivider = RCC_APB4_DIV1;
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if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1) != HAL_OK) {
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Error_Handler();
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}
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} |