mirror of
https://github.com/STMicroelectronics/STM32CubeF7.git
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383 lines
11 KiB
C
383 lines
11 KiB
C
/**
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******************************************************************************
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* @file FMC/FMC_NOR/Src/main.c
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* @author MCD Application Team
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* @brief This example describes how to configure and use GPIOs through
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* the STM32F7xx HAL API.
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******************************************************************************
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* @attention
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*
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* <h2><center>© Copyright (c) 2016 STMicroelectronics.
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* All rights reserved.</center></h2>
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*
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* This software component is licensed by ST under BSD 3-Clause license,
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* the "License"; You may not use this file except in compliance with the
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* License. You may obtain a copy of the License at:
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* opensource.org/licenses/BSD-3-Clause
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "main.h"
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/** @addtogroup STM32F7xx_HAL_Examples
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* @{
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*/
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/** @addtogroup FMC_NOR
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* @{
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*/
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/* Private typedef -----------------------------------------------------------*/
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/* Private define ------------------------------------------------------------*/
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#define BUFFER_SIZE ((uint32_t)0x1000)
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#define WRITE_READ_ADDR ((uint32_t)0x0800)
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/* Private macro -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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NOR_HandleTypeDef hnor;
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FMC_NORSRAM_TimingTypeDef NOR_Timing;
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/* Read/Write Buffers */
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uint16_t aTxBuffer[BUFFER_SIZE];
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uint16_t aRxBuffer[BUFFER_SIZE];
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/* Status variables */
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__IO uint32_t uwWriteReadStatus = 0;
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/* Counter index */
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uint32_t uwIndex = 0;
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/* Private function prototypes -----------------------------------------------*/
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void SystemClock_Config(void);
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static void Error_Handler(void);
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static void Fill_Buffer(uint16_t *pBuffer, uint32_t uwBufferLenght, uint16_t uwOffset);
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static TestStatus Buffercmp(uint16_t *pBuffer1, uint16_t *pBuffer2, uint16_t BufferLength);
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static void CPU_CACHE_Enable(void);
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static void MPU_ConfigNOR(void);
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/* Private functions ---------------------------------------------------------*/
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/**
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* @brief Main program
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* @param None
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* @retval None
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*/
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int main(void)
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{
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/* Set MPU NOR region */
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MPU_ConfigNOR();
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/* Enable the CPU Cache */
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CPU_CACHE_Enable();
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/* STM32F7xx HAL library initialization:
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- Configure the Flash ART accelerator on ITCM interface
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- Systick timer is configured by default as source of time base, but user
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can eventually implement his proper time base source (a general purpose
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timer for example or other time source), keeping in mind that Time base
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duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and
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handled in milliseconds basis.
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- Set NVIC Group Priority to 4
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- Low Level Initialization
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*/
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HAL_Init();
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/* Configure the system clock to 216 MHz */
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SystemClock_Config();
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/* Configure LED1 and LED3 */
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BSP_LED_Init(LED1);
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BSP_LED_Init(LED3);
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/*##-1- Configure the NOR device ##########################################*/
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/* NOR device configuration */
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hnor.Instance = FMC_NORSRAM_DEVICE;
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hnor.Extended = FMC_NORSRAM_EXTENDED_DEVICE;
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NOR_Timing.AddressSetupTime = 4;
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NOR_Timing.AddressHoldTime = 3;
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NOR_Timing.DataSetupTime = 8;
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NOR_Timing.BusTurnAroundDuration = 1;
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NOR_Timing.CLKDivision = 2;
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NOR_Timing.DataLatency = 2;
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NOR_Timing.AccessMode = FMC_ACCESS_MODE_A;
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hnor.Init.NSBank = FMC_NORSRAM_BANK1;
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hnor.Init.DataAddressMux = FMC_DATA_ADDRESS_MUX_DISABLE;
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hnor.Init.MemoryType = FMC_MEMORY_TYPE_NOR;
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hnor.Init.MemoryDataWidth = NOR_MEMORY_WIDTH;
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hnor.Init.BurstAccessMode = FMC_BURST_ACCESS_MODE_DISABLE;
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hnor.Init.WaitSignalPolarity = FMC_WAIT_SIGNAL_POLARITY_LOW;
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hnor.Init.WaitSignalActive = FMC_WAIT_TIMING_BEFORE_WS;
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hnor.Init.WriteOperation = FMC_WRITE_OPERATION_ENABLE;
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hnor.Init.WaitSignal = FMC_WAIT_SIGNAL_ENABLE;
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hnor.Init.ExtendedMode = FMC_EXTENDED_MODE_DISABLE;
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hnor.Init.AsynchronousWait = FMC_ASYNCHRONOUS_WAIT_ENABLE;
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hnor.Init.WriteBurst = FMC_WRITE_BURST_DISABLE;
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hnor.Init.ContinuousClock = NOR_CONTINUOUS_CLOCK;
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/* Initialize the NOR controller */
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if(HAL_NOR_Init(&hnor, &NOR_Timing, &NOR_Timing) != HAL_OK)
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{
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/* Initialization Error */
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Error_Handler();
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}
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/*##-2- NOR memory read/write access ######################################*/
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/* Fill the buffer to write */
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Fill_Buffer(aTxBuffer, BUFFER_SIZE, 0x2323);
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/* Erase block */
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HAL_NOR_Erase_Block(&hnor, WRITE_READ_ADDR, NOR_BANK_ADDR);
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/* Wait until NOR is ready */
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if(HAL_NOR_GetStatus(&hnor, NOR_BANK_ADDR, ERASE_TIMEOUT) != HAL_NOR_STATUS_SUCCESS)
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{
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return HAL_NOR_STATUS_ERROR;
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}
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/* Write data to the NOR memory */
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for (uwIndex = 0; uwIndex < BUFFER_SIZE; uwIndex++)
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{
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/* Write data to NOR */
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HAL_NOR_Program(&hnor, (uint32_t *)(NOR_BANK_ADDR + WRITE_READ_ADDR + 2*uwIndex), &aTxBuffer[uwIndex]);
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/* Read NOR device status */
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if(HAL_NOR_GetStatus(&hnor, NOR_BANK_ADDR, PROGRAM_TIMEOUT) != HAL_NOR_STATUS_SUCCESS)
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{
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return HAL_NOR_STATUS_ERROR;
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}
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}
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/* Read back data from the NOR memory */
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if(HAL_NOR_ReadBuffer(&hnor, NOR_BANK_ADDR + WRITE_READ_ADDR, &aRxBuffer[0], BUFFER_SIZE) != HAL_OK)
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{
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return HAL_ERROR;
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}
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/*##-3- Checking data integrity ############################################*/
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uwWriteReadStatus = Buffercmp(aTxBuffer, aRxBuffer, BUFFER_SIZE);
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if (uwWriteReadStatus != PASSED)
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{
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/* KO */
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/* Toggle LED3 */
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while(1)
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{
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BSP_LED_Toggle(LED3);
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}
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}
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else
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{
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/* OK */
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/* Turn on LED1 */
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BSP_LED_On(LED1);
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}
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/* Infinite loop */
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while (1)
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{
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}
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}
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/**
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* @brief System Clock Configuration
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* The system Clock is configured as follow :
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* System Clock source = PLL (HSE)
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* SYSCLK(Hz) = 216000000
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* HCLK(Hz) = 216000000
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* AHB Prescaler = 1
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* APB1 Prescaler = 4
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* APB2 Prescaler = 2
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* HSE Frequency(Hz) = 25000000
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* PLL_M = 25
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* PLL_N = 432
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* PLL_P = 2
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* PLL_Q = 9
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* VDD(V) = 3.3
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* Main regulator output voltage = Scale1 mode
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* Flash Latency(WS) = 7
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* @param None
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* @retval None
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*/
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void SystemClock_Config(void)
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{
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RCC_ClkInitTypeDef RCC_ClkInitStruct;
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RCC_OscInitTypeDef RCC_OscInitStruct;
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HAL_StatusTypeDef ret = HAL_OK;
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/* Enable HSE Oscillator and activate PLL with HSE as source */
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RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
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RCC_OscInitStruct.HSEState = RCC_HSE_ON;
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RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
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RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
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RCC_OscInitStruct.PLL.PLLM = 25;
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RCC_OscInitStruct.PLL.PLLN = 432;
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RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
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RCC_OscInitStruct.PLL.PLLQ = 9;
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ret = HAL_RCC_OscConfig(&RCC_OscInitStruct);
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if(ret != HAL_OK)
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{
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while(1) { ; }
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}
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/* Activate the OverDrive to reach the 216 MHz Frequency */
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ret = HAL_PWREx_EnableOverDrive();
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if(ret != HAL_OK)
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{
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while(1) { ; }
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}
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/* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2 clocks dividers */
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RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
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RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
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RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
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RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
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RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
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ret = HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_7);
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if(ret != HAL_OK)
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{
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while(1) { ; }
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}
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}
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/**
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* @brief This function is executed in case of error occurrence.
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* @param None
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* @retval None
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*/
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static void Error_Handler(void)
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{
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/* User may add here some code to deal with this error */
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/* Turn LED3 on */
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BSP_LED_On(LED3);
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while(1)
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{
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}
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}
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/**
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* @brief Fills buffer with user predefined data.
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* @param pBuffer: pointer on the buffer to fill
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* @param uwBufferLenght: size of the buffer to fill
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* @param uwOffset: first value to fill on the buffer
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* @retval None
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*/
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static void Fill_Buffer(uint16_t *pBuffer, uint32_t uwBufferLenght, uint16_t uwOffset)
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{
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uint16_t tmpIndex = 0;
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/* Put in global buffer different values */
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for (tmpIndex = 0; tmpIndex < uwBufferLenght; tmpIndex++ )
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{
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pBuffer[tmpIndex] = tmpIndex + uwOffset;
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}
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}
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/**
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* @brief Compares two buffers.
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* @param pBuffer1, pBuffer2: buffers to be compared.
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* @param BufferLength: buffer's length
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* @retval PASSED: pBuffer identical to pBuffer1
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* FAILED: pBuffer differs from pBuffer1
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*/
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static TestStatus Buffercmp(uint16_t* pBuffer1, uint16_t* pBuffer2, uint16_t BufferLength)
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{
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while (BufferLength--)
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{
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if (*pBuffer1 != *pBuffer2)
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{
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return FAILED;
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}
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pBuffer1++;
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pBuffer2++;
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}
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return PASSED;
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}
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/**
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* @brief CPU L1-Cache enable.
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* @param None
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* @retval None
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*/
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static void CPU_CACHE_Enable(void)
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{
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/* Enable I-Cache */
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SCB_EnableICache();
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/* Enable D-Cache */
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SCB_EnableDCache();
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}
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/**
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* @brief Configure the MPU attributes as as device for NOR.
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* @note The Base Address is 0x60000000.
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* The Region Size is 16MBytes, it is related to NOR memory size.
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* @param None
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* @retval None
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*/
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static void MPU_ConfigNOR(void)
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{
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MPU_Region_InitTypeDef MPU_InitStruct;
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/* Disable the MPU */
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HAL_MPU_Disable();
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/* Configure the MPU attributes as device for NOR */
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MPU_InitStruct.Enable = MPU_REGION_ENABLE;
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MPU_InitStruct.BaseAddress = 0x60000000;
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MPU_InitStruct.Size = MPU_REGION_SIZE_16MB;
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MPU_InitStruct.AccessPermission = MPU_REGION_FULL_ACCESS;
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MPU_InitStruct.IsBufferable = MPU_ACCESS_BUFFERABLE;
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MPU_InitStruct.IsCacheable = MPU_ACCESS_NOT_CACHEABLE;
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MPU_InitStruct.IsShareable = MPU_ACCESS_SHAREABLE;
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MPU_InitStruct.Number = MPU_REGION_NUMBER1;
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MPU_InitStruct.TypeExtField = MPU_TEX_LEVEL0;
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MPU_InitStruct.SubRegionDisable = 0x00;
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MPU_InitStruct.DisableExec = MPU_INSTRUCTION_ACCESS_ENABLE;
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HAL_MPU_ConfigRegion(&MPU_InitStruct);
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/* Enable the MPU */
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HAL_MPU_Enable(MPU_PRIVILEGED_DEFAULT);
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}
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#ifdef USE_FULL_ASSERT
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/**
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* @brief Reports the name of the source file and the source line number
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* where the assert_param error has occurred.
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* @param file: pointer to the source file name
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* @param line: assert_param error line source number
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* @retval None
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*/
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void assert_failed(uint8_t *file, uint32_t line)
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{
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/* User can add his own implementation to report the file name and line number,
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ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
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/* Infinite loop */
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while (1)
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{
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}
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}
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#endif
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/**
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* @}
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*/
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/**
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* @}
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*/
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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