/* USER CODE BEGIN Header */
/**
******************************************************************************
* [url=home.php?mod=space&uid=288409]@file[/url] DMA/DMA_FLASHToRAM/Src/main.c
* [url=home.php?mod=space&uid=187600]@author[/url] MCD Application Team
* [url=home.php?mod=space&uid=247401]@brief[/url] This example provides a description of how to use a DMA channel
* to transfer a word data buffer from FLASH memory to embedded
* SRAM memory through the STM32H5xx HAL API.
******************************************************************************
* @attention
*
* Copyright (c) 2023 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.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include <string.h>
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
DMA_HandleTypeDef handle_GPDMA1_Channel0;
/* USER CODE BEGIN PV */
static const uint32_t aSRC_Const_Buffer[BUFFER_SIZE] =
{
0x01020304, 0x05060708, 0x090A0B0C, 0x0D0E0F10,
0x11121314, 0x15161718, 0x191A1B1C, 0x1D1E1F20,
0x21222324, 0x25262728, 0x292A2B2C, 0x2D2E2F30,
0x31323334, 0x35363738, 0x393A3B3C, 0x3D3E3F40,
0x41424344, 0x45464748, 0x494A4B4C, 0x4D4E4F50,
0x51525354, 0x55565758, 0x595A5B5C, 0x5D5E5F60,
0x61626364, 0x65666768, 0x696A6B6C, 0x6D6E6F70,
0x71727374, 0x75767778, 0x797A7B7C, 0x7D7E7F80
};
static uint32_t aDST_Buffer[BUFFER_SIZE];
static __IO uint32_t transferErrorDetected; /* Set to 1 if an error transfer is detected */
static __IO uint32_t transferCompleteDetected; /* Set to 1 if transfer is correctly completed */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_GPDMA1_Init(void);
static void MX_ICACHE_Init(void);
/* USER CODE BEGIN PFP */
/* Private function prototypes -----------------------------------------------*/
static void TransferComplete(DMA_HandleTypeDef *handle_GPDMA1_Channel0);
static void TransferError(DMA_HandleTypeDef *handle_GPDMA1_Channel0);
static uint32_t Buffercmp(uint8_t* pBuffer1, uint8_t* pBuffer2, uint16_t BufferLength);
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
/* STM32H5xx HAL library initialization:
- Systick timer is configured by default as source of time base, but user
can eventually implement his proper time base source (a general purpose
timer for example or other time source), keeping in mind that Time base
duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and
handled in milliseconds basis.
- Set NVIC Group Priority to 4
- Low Level Initialization
*/
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_GPDMA1_Init();
MX_ICACHE_Init();
/* USER CODE BEGIN 2 */
/* Initialize LED2 */
BSP_LED_Init(LED2);
/* Reset transferErrorDetected to 0, it will be set to 1 if a transfer error is detected */
transferErrorDetected = 0;
/* Reset transferCompleteDetected to 0, it will be set to 1 if a transfer is correctly completed */
transferCompleteDetected = 0;
/* Select Callbacks functions called after Transfer complete and Transfer error */
HAL_DMA_RegisterCallback(&handle_GPDMA1_Channel0, HAL_DMA_XFER_CPLT_CB_ID, TransferComplete);
HAL_DMA_RegisterCallback(&handle_GPDMA1_Channel0, HAL_DMA_XFER_ERROR_CB_ID, TransferError);
/* Clean destination buffer */
memset((void *)aDST_Buffer, 0U, sizeof(aDST_Buffer) );
/* Configure the source, destination and buffer size DMA fields and Start DMA Channel/Stream transfer */
/* Enable All the DMA interrupts */
if (HAL_DMA_Start_IT(&handle_GPDMA1_Channel0, (uint32_t)&aSRC_Const_Buffer, (uint32_t)&aDST_Buffer, sizeof(aDST_Buffer)) != HAL_OK)
{
/* Transfer Error */
Error_Handler();
}
/* Wait for end of transmission or an error occurred */
while ((transferCompleteDetected == 0) && (transferErrorDetected == 0U));
/* Check DMA error */
if (transferErrorDetected == 1U)
{
Error_Handler();
}
/* Check destination aDST_Buffer */
if (Buffercmp((uint8_t *)aSRC_Const_Buffer, (uint8_t *)aDST_Buffer, (BUFFER_SIZE * 4U)) != 0U)
{
/* Transfer Error */
Error_Handler();
}
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
/* Turn LED2 on*/
BSP_LED_On(LED2);
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** 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_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLL1_SOURCE_HSE;
RCC_OscInitStruct.PLL.PLLM = 12;
RCC_OscInitStruct.PLL.PLLN = 250;
RCC_OscInitStruct.PLL.PLLP = 2;
RCC_OscInitStruct.PLL.PLLQ = 2;
RCC_OscInitStruct.PLL.PLLR = 2;
RCC_OscInitStruct.PLL.PLLRGE = RCC_PLL1_VCIRANGE_1;
RCC_OscInitStruct.PLL.PLLVCOSEL = RCC_PLL1_VCORANGE_WIDE;
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_PCLK3;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
RCC_ClkInitStruct.APB3CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5) != HAL_OK)
{
Error_Handler();
}
/** Configure the programming delay
*/
__HAL_FLASH_SET_PROGRAM_DELAY(FLASH_PROGRAMMING_DELAY_2);
}
/**
* @brief GPDMA1 Initialization Function
* @param None
* @retval None
*/
static void MX_GPDMA1_Init(void)
{
/* USER CODE BEGIN GPDMA1_Init 0 */
/* USER CODE END GPDMA1_Init 0 */
/* Peripheral clock enable */
__HAL_RCC_GPDMA1_CLK_ENABLE();
/* GPDMA1 interrupt Init */
HAL_NVIC_SetPriority(GPDMA1_Channel0_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(GPDMA1_Channel0_IRQn);
/* USER CODE BEGIN GPDMA1_Init 1 */
/* USER CODE END GPDMA1_Init 1 */
handle_GPDMA1_Channel0.Instance = GPDMA1_Channel0;
handle_GPDMA1_Channel0.Init.Request = DMA_REQUEST_SW;
handle_GPDMA1_Channel0.Init.BlkHWRequest = DMA_BREQ_SINGLE_BURST;
handle_GPDMA1_Channel0.Init.Direction = DMA_MEMORY_TO_MEMORY;
handle_GPDMA1_Channel0.Init.SrcInc = DMA_SINC_INCREMENTED;
handle_GPDMA1_Channel0.Init.DestInc = DMA_DINC_INCREMENTED;
handle_GPDMA1_Channel0.Init.SrcDataWidth = DMA_SRC_DATAWIDTH_WORD;
handle_GPDMA1_Channel0.Init.DestDataWidth = DMA_DEST_DATAWIDTH_WORD;
handle_GPDMA1_Channel0.Init.Priority = DMA_LOW_PRIORITY_HIGH_WEIGHT;
handle_GPDMA1_Channel0.Init.SrcBurstLength = 1;
handle_GPDMA1_Channel0.Init.DestBurstLength = 1;
handle_GPDMA1_Channel0.Init.TransferAllocatedPort = DMA_SRC_ALLOCATED_PORT0|DMA_DEST_ALLOCATED_PORT1;
handle_GPDMA1_Channel0.Init.TransferEventMode = DMA_TCEM_BLOCK_TRANSFER;
handle_GPDMA1_Channel0.Init.Mode = DMA_NORMAL;
if (HAL_DMA_Init(&handle_GPDMA1_Channel0) != HAL_OK)
{
Error_Handler();
}
if (HAL_DMA_ConfigChannelAttributes(&handle_GPDMA1_Channel0, DMA_CHANNEL_NPRIV) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN GPDMA1_Init 2 */
/* USER CODE END GPDMA1_Init 2 */
}
/**
* @brief ICACHE Initialization Function
* @param None
* @retval None
*/
static void MX_ICACHE_Init(void)
{
/* USER CODE BEGIN ICACHE_Init 0 */
/* USER CODE END ICACHE_Init 0 */
/* USER CODE BEGIN ICACHE_Init 1 */
/* USER CODE END ICACHE_Init 1 */
/** Enable instruction cache (default 2-ways set associative cache)
*/
if (HAL_ICACHE_Enable() != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN ICACHE_Init 2 */
/* USER CODE END ICACHE_Init 2 */
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOH_CLK_ENABLE();
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
/**
* @brief DMA conversion complete callback
* [url=home.php?mod=space&uid=536309]@NOTE[/url] This function is executed when the transfer complete interrupt
* is generated
* @retval None
*/
static void TransferComplete(DMA_HandleTypeDef *handle_GPDMA1_Channel0)
{
transferCompleteDetected = 1;
}
/**
* @brief DMA conversion error callback
* @note This function is executed when the transfer error interrupt
* is generated during DMA transfer
* @retval None
*/
static void TransferError(DMA_HandleTypeDef *handle_GPDMA1_Channel0)
{
transferErrorDetected = 1;
}
/**
* @brief Compares two buffers.
* @param pBuffer1, pBuffer2: buffers to be compared.
* @param BufferLength: buffer's length
* @retval 0 : pBuffer1 identical to pBuffer2
* > 0 : pBuffer1 differs from pBuffer2
*/
static uint32_t Buffercmp(uint8_t* pBuffer1, uint8_t* pBuffer2, uint16_t BufferLength)
{
while (BufferLength--)
{
if ((*pBuffer1) != *pBuffer2)
{
return BufferLength;
}
pBuffer1++;
pBuffer2++;
}
return 0;
}
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
while (1)
{
/* Toggle LED2 with a period of 1 s */
BSP_LED_Toggle(LED2);
HAL_Delay(1000);
}
/* USER CODE END Error_Handler_Debug */
}
#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 CODE BEGIN 6 */
/* 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)
{
}
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */
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