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