242 lines
6.9 KiB
C
242 lines
6.9 KiB
C
/**
|
|
******************************************************************************
|
|
* @file Templates/Src/main.c
|
|
* @author MCD Application Team
|
|
* @brief Main program body
|
|
******************************************************************************
|
|
* @attention
|
|
*
|
|
* Copyright (c) 2016 STMicroelectronics.
|
|
* All rights reserved.
|
|
*
|
|
* This software is licensed under terms that can be found in the LICENSE file
|
|
* in the root directory of this software component.
|
|
* If no LICENSE file comes with this software, it is provided AS-IS.
|
|
*
|
|
******************************************************************************
|
|
*/
|
|
|
|
/* Includes ------------------------------------------------------------------*/
|
|
#include "main.h"
|
|
|
|
/** @addtogroup STM32F7xx_HAL_Examples
|
|
* @{
|
|
*/
|
|
|
|
/** @addtogroup Templates
|
|
* @{
|
|
*/
|
|
|
|
/* Private typedef -----------------------------------------------------------*/
|
|
/* Private define ------------------------------------------------------------*/
|
|
/* Private macro -------------------------------------------------------------*/
|
|
/* Private variables ---------------------------------------------------------*/
|
|
/* Private function prototypes -----------------------------------------------*/
|
|
static void MPU_Config(void);
|
|
static void SystemClock_Config(void);
|
|
static void Error_Handler(void);
|
|
static void CPU_CACHE_Enable(void);
|
|
|
|
/* Private functions ---------------------------------------------------------*/
|
|
|
|
/**
|
|
* @brief Main program
|
|
* @param None
|
|
* @retval None
|
|
*/
|
|
int main(void)
|
|
{
|
|
/* This project template calls firstly CPU_CACHE_Enable() in order to enable the CPU Cache.
|
|
This function is provided as template implementation that User may integrate
|
|
in his application, to enhance the performance in case of use of AXI interface
|
|
with several masters. */
|
|
|
|
/* Configure the MPU attributes */
|
|
MPU_Config();
|
|
|
|
/* Enable the CPU Cache */
|
|
CPU_CACHE_Enable();
|
|
|
|
/* STM32F7xx HAL library initialization:
|
|
- Configure the Flash ART accelerator on ITCM interface
|
|
- Configure the Systick to generate an interrupt each 1 msec
|
|
- Set NVIC Group Priority to 4
|
|
- Low Level Initialization
|
|
*/
|
|
HAL_Init();
|
|
|
|
/* Configure the system clock to 216 MHz */
|
|
SystemClock_Config();
|
|
|
|
|
|
/* Add your application code here */
|
|
|
|
|
|
/* Infinite loop */
|
|
while (1)
|
|
{
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief System Clock Configuration
|
|
* The system Clock is configured as follow :
|
|
* System Clock source = PLL (HSE)
|
|
* SYSCLK(Hz) = 216000000
|
|
* HCLK(Hz) = 216000000
|
|
* AHB Prescaler = 1
|
|
* APB1 Prescaler = 4
|
|
* APB2 Prescaler = 2
|
|
* HSE Frequency(Hz) = 8000000
|
|
* PLL_M = 8
|
|
* PLL_N = 432
|
|
* PLL_P = 2
|
|
* PLL_Q = 9
|
|
* VDD(V) = 3.3
|
|
* Main regulator output voltage = Scale1 mode
|
|
* Flash Latency(WS) = 7
|
|
* @param None
|
|
* @retval None
|
|
*/
|
|
static void SystemClock_Config(void)
|
|
{
|
|
RCC_ClkInitTypeDef RCC_ClkInitStruct;
|
|
RCC_OscInitTypeDef RCC_OscInitStruct;
|
|
HAL_StatusTypeDef ret = HAL_OK;
|
|
|
|
/* Enable Power Control clock */
|
|
__HAL_RCC_PWR_CLK_ENABLE();
|
|
|
|
/* The voltage scaling allows optimizing the power consumption when the device is
|
|
clocked below the maximum system frequency, to update the voltage scaling value
|
|
regarding system frequency refer to product datasheet. */
|
|
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
|
|
|
|
/* Enable HSE Oscillator and activate PLL with HSE as source
|
|
Note: Since there is no oscillator on board, HSE clock is derived from STLink */
|
|
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
|
|
RCC_OscInitStruct.HSEState = RCC_HSE_BYPASS;
|
|
RCC_OscInitStruct.HSIState = RCC_HSI_OFF;
|
|
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
|
|
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
|
|
RCC_OscInitStruct.PLL.PLLM = 8;
|
|
RCC_OscInitStruct.PLL.PLLN = 432;
|
|
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
|
|
RCC_OscInitStruct.PLL.PLLQ = 9;
|
|
|
|
ret = HAL_RCC_OscConfig(&RCC_OscInitStruct);
|
|
if(ret != HAL_OK)
|
|
{
|
|
Error_Handler();
|
|
}
|
|
|
|
/* Activate the OverDrive to reach the 216 MHz Frequency */
|
|
ret = HAL_PWREx_EnableOverDrive();
|
|
if(ret != HAL_OK)
|
|
{
|
|
Error_Handler();
|
|
}
|
|
|
|
/* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2 clocks dividers */
|
|
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;
|
|
|
|
ret = HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_7);
|
|
if(ret != HAL_OK)
|
|
{
|
|
Error_Handler();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief This function is executed in case of error occurrence.
|
|
* @param None
|
|
* @retval None
|
|
*/
|
|
static void Error_Handler(void)
|
|
{
|
|
/* User may add here some code to deal with this error */
|
|
while(1)
|
|
{
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief CPU L1-Cache enable.
|
|
* @param None
|
|
* @retval None
|
|
*/
|
|
static void CPU_CACHE_Enable(void)
|
|
{
|
|
/* Enable I-Cache */
|
|
SCB_EnableICache();
|
|
|
|
/* Enable D-Cache */
|
|
SCB_EnableDCache();
|
|
}
|
|
|
|
|
|
/**
|
|
* @brief Configure the MPU attributes
|
|
* @param None
|
|
* @retval None
|
|
*/
|
|
static void MPU_Config(void)
|
|
{
|
|
MPU_Region_InitTypeDef MPU_InitStruct;
|
|
|
|
/* Disable the MPU */
|
|
HAL_MPU_Disable();
|
|
|
|
/* Configure the MPU as Strongly ordered for not defined regions */
|
|
MPU_InitStruct.Enable = MPU_REGION_ENABLE;
|
|
MPU_InitStruct.BaseAddress = 0x00;
|
|
MPU_InitStruct.Size = MPU_REGION_SIZE_4GB;
|
|
MPU_InitStruct.AccessPermission = MPU_REGION_NO_ACCESS;
|
|
MPU_InitStruct.IsBufferable = MPU_ACCESS_NOT_BUFFERABLE;
|
|
MPU_InitStruct.IsCacheable = MPU_ACCESS_NOT_CACHEABLE;
|
|
MPU_InitStruct.IsShareable = MPU_ACCESS_SHAREABLE;
|
|
MPU_InitStruct.Number = MPU_REGION_NUMBER0;
|
|
MPU_InitStruct.TypeExtField = MPU_TEX_LEVEL0;
|
|
MPU_InitStruct.SubRegionDisable = 0x87;
|
|
MPU_InitStruct.DisableExec = MPU_INSTRUCTION_ACCESS_DISABLE;
|
|
|
|
HAL_MPU_ConfigRegion(&MPU_InitStruct);
|
|
|
|
/* Enable the MPU */
|
|
HAL_MPU_Enable(MPU_PRIVILEGED_DEFAULT);
|
|
}
|
|
|
|
#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,
|
|
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
|
|
|
|
/* Infinite loop */
|
|
while (1)
|
|
{
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|