273 lines
7.7 KiB
C
273 lines
7.7 KiB
C
/**
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******************************************************************
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* @file main.c
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* @author fire
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* @version V1.0
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* @date 2018-xx-xx
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* @brief USART—USART1接发例程
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******************************************************************
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* @attention
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*
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* 实验平台:野火 STM32H750开发板
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* 论坛 :http://www.firebbs.cn
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* 淘宝 :http://firestm32.taobao.com
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*
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******************************************************************
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*/
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#include "stm32h7xx.h"
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#include "main.h"
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#include "./led/bsp_led.h"
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#include "./usart/bsp_debug_usart.h"
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#include "./flash/bsp_qspi_flash.h"
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#include "./sdram/bsp_sdram.h"
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typedef enum { FAILED = 0, PASSED = !FAILED} TestStatus;
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/* 获取缓冲区的长度 */
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#define TxBufferSize1 (countof(TxBuffer1) - 1)
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#define RxBufferSize1 (countof(TxBuffer1) - 1)
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#define countof(a) (sizeof(a) / sizeof(*(a)))
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#define BufferSize (countof(Tx_Buffer)-1)
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#define FLASH_WriteAddress 0x2000
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#define FLASH_ReadAddress FLASH_WriteAddress
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#define FLASH_SectorToErase FLASH_WriteAddress
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/* 发送缓冲区初始化 */
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uint8_t Tx_Buffer[256] = "感谢您选用野火stm32开发板\r\nhttp://firestm32.taobao.com";
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uint8_t Rx_Buffer[BufferSize];
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//读取的ID存储位置
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__IO uint32_t DeviceID = 0;
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__IO uint32_t FlashID = 0;
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__IO TestStatus TransferStatus1 = FAILED;
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// 函数原型声明
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//void Delay(__IO uint32_t nCount);
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TestStatus Buffercmp(uint8_t* pBuffer1, uint8_t* pBuffer2, uint16_t BufferLength);
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extern __IO uint8_t QSPIStatusReady;
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extern __IO uint8_t QSPITxOK;
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extern __IO uint8_t QSPIRxOK;
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extern __IO uint8_t QSPICmdOK;
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/* Private typedef -----------------------------------------------------------*/
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typedef void (*pFunction)(void);
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pFunction JumpToApplication;
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/* QSPI is used to emulate SPI-NOR*/
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#define APPLICATION_ADDRESS QSPI_BASE
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/**
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* @brief 使能CPU L1-Cache.
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* @param 无
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* @retval 无
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*/
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static void CPU_CACHE_Enable(void)
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{
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/* 使能I-Cache */
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SCB_EnableICache();
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/* 使能D-Cache */
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SCB_EnableDCache();
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}
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/**
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* @brief 禁用CPU L1-Cache.
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* @param 无
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* @retval 无
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*/
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static void CPU_CACHE_Disable(void)
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{
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/* 禁止I-Cache */
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SCB_DisableICache();
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/* 禁止D-Cache */
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SCB_DisableDCache();
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}
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//#if (DATA_AREA == USE_EXTERNAL_SDRAM) || (CODE_AREA == USE_EXTERNAL_SDRAM)
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static void MPU_Config (void)
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{
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MPU_Region_InitTypeDef MPU_InitStruct;
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/* 禁止MPU */
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HAL_MPU_Disable();
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/* 配置SDRAM的MPU */
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MPU_InitStruct.Enable = MPU_REGION_ENABLE;
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MPU_InitStruct.BaseAddress = 0xD0000000;
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MPU_InitStruct.Size = MPU_REGION_SIZE_64MB;
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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_CACHEABLE;
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MPU_InitStruct.IsShareable = MPU_ACCESS_NOT_SHAREABLE;
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MPU_InitStruct.Number = MPU_REGION_NUMBER7;
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MPU_InitStruct.TypeExtField = MPU_TEX_LEVEL1;
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MPU_InitStruct.SubRegionDisable = 0x00;
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//#if (DATA_AREA == USE_EXTERNAL_SDRAM)
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// MPU_InitStruct.DisableExec = MPU_INSTRUCTION_ACCESS_DISABLE;
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//#else
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MPU_InitStruct.DisableExec = MPU_INSTRUCTION_ACCESS_ENABLE;
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//#endif
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HAL_MPU_ConfigRegion(&MPU_InitStruct);
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/* 使能MPU */
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HAL_MPU_Enable(MPU_PRIVILEGED_DEFAULT);
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}
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//#endif
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/**
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* @brief 主函数
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* @param 无
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* @retval 无
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*/
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int main(void)
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{
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/* 使能CPU Cache */
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CPU_CACHE_Enable();
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/* STM32H7xx HAL库初始化：
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- 配置Systick以每1毫秒生成一个中断
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- 将NVIC组优先级设置为4
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- 全局MSP（MCU支持包）初始化 */
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HAL_Init();
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/* 系统时钟初始化成480MHz */
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SystemClock_Config();
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// LED_GPIO_Config();
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//#if (DATA_AREA == USE_EXTERNAL_SDRAM) || (CODE_AREA == USE_EXTERNAL_SDRAM)
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/* 配置MPU以允许非对齐访问 */
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// MPU_Config();
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//#endif
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/* 配置串口1为：115200 8-N-1 */
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DEBUG_USART_Config();
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SDRAM_Init();
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//SDRAM_Test();
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printf("欢迎使用野火开发板 \r\n");
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printf("STM32H7启动引导程序运行中。。。\r\n");
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/* 32M串行flash W25Q256初始化 */
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QSPI_FLASH_Init();
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/* Disable CPU L1 cache before jumping to the QSPI code execution */
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CPU_CACHE_Disable();
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/* Disable Systick interrupt */
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SysTick->CTRL = 0;
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/* Initialize user application's Stack Pointer & Jump to user application */
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JumpToApplication = (pFunction) (*(__IO uint32_t*) (APPLICATION_ADDRESS + 4));
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__set_MSP(*(__IO uint32_t*) APPLICATION_ADDRESS);
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JumpToApplication();
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/* We should never get here as execution is now on user application */
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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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* 函数名：Buffercmp
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* 描述 ：比较两个缓冲区中的数据是否相等
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* 输入 ：-pBuffer1 src缓冲区指针
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* -pBuffer2 dst缓冲区指针
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* -BufferLength 缓冲区长度
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* 输出 ：无
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* 返回 ：-PASSED pBuffer1 等于 pBuffer2
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* -FAILED pBuffer1 不同于 pBuffer2
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*/
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TestStatus Buffercmp(uint8_t* pBuffer1, uint8_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 System Clock 配置
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* system Clock 配置如下:
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* System Clock source = PLL (HSE)
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* SYSCLK(Hz) = 480000000 (CPU Clock)
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* HCLK(Hz) = 240000000 (AXI and AHBs Clock)
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* AHB Prescaler = 2
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* D1 APB3 Prescaler = 2 (APB3 Clock 120MHz)
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* D2 APB1 Prescaler = 2 (APB1 Clock 120MHz)
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* D2 APB2 Prescaler = 2 (APB2 Clock 120MHz)
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* D3 APB4 Prescaler = 2 (APB4 Clock 120MHz)
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* HSE Frequency(Hz) = 25000000
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* PLL_M = 5
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* PLL_N = 192
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* PLL_P = 2
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* PLL_Q = 4
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* PLL_R = 2
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* VDD(V) = 3.3
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* Flash Latency(WS) = 4
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* @param None
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* @retval None
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*/
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static 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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/*使能供电配置更新 */
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HAL_PWREx_ConfigSupply(PWR_LDO_SUPPLY);
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/* 当器件的时钟频率低于最大系统频率时，电压调节可以优化功耗，
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关于系统频率的电压调节值的更新可以参考产品数据手册。 */
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__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE0);
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while(!__HAL_PWR_GET_FLAG(PWR_FLAG_VOSRDY)) {}
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/* 启用HSE振荡器并使用HSE作为源激活PLL */
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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.HSIState = RCC_HSI_OFF;
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RCC_OscInitStruct.CSIState = RCC_CSI_OFF;
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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 = 5;
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RCC_OscInitStruct.PLL.PLLN = 192;
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RCC_OscInitStruct.PLL.PLLFRACN = 0;
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RCC_OscInitStruct.PLL.PLLP = 2;
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RCC_OscInitStruct.PLL.PLLR = 2;
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RCC_OscInitStruct.PLL.PLLQ = 4;
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RCC_OscInitStruct.PLL.PLLVCOSEL = RCC_PLL1VCOWIDE;
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RCC_OscInitStruct.PLL.PLLRGE = RCC_PLL1VCIRANGE_2;
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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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/* 选择PLL作为系统时钟源并配置总线时钟分频器 */
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RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | \
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RCC_CLOCKTYPE_HCLK | \
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RCC_CLOCKTYPE_D1PCLK1 | \
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RCC_CLOCKTYPE_PCLK1 | \
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RCC_CLOCKTYPE_PCLK2 | \
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RCC_CLOCKTYPE_D3PCLK1);
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RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
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RCC_ClkInitStruct.SYSCLKDivider = RCC_SYSCLK_DIV1;
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RCC_ClkInitStruct.AHBCLKDivider = RCC_HCLK_DIV2;
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RCC_ClkInitStruct.APB3CLKDivider = RCC_APB3_DIV2;
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RCC_ClkInitStruct.APB1CLKDivider = RCC_APB1_DIV2;
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RCC_ClkInitStruct.APB2CLKDivider = RCC_APB2_DIV2;
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RCC_ClkInitStruct.APB4CLKDivider = RCC_APB4_DIV2;
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ret = HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_4);
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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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/****************************END OF FILE***************************/
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