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版本 | 日期 | 作者 | 修改内容 |
---|---|---|---|
V1.0 | 2020-03-17 | gingko | 初次建立 |
1.在主界面选择File–>New Project 或者直接点击ACCEE TO MCU SELECTOR
2.出现芯片型号选择,搜索自己芯片的型号,双击型号,或者点击Start Project进入配置
在搜索栏的下面,提供的各 种查找方式,可以选择芯片内核,型号,等等,可以帮助你查找芯片。本实验选取的芯片型号为:STM32H750IBKx。
3.配置RCC,使用外部时钟源
4.时基源选择SysTick
5.将PA10,PB7,PB8设置为GPIO_Output
6.引脚模式配置
7.配置USB_OTG_FS
引脚模式配置
8.配置USB_DEVICE
9.配置SDMMC1
10.时钟源设置,选择外部高速时钟源,配置为最大主频
11.工程文件的设置, 这里就是工程的各种配置 我们只用到有限几个,其他的默认即可 IDE我们使用的是 MDK V5.27
12.点击Code Generator,进行进一步配置
13.然后点击GENERATE CODE 创建工程 创建成功,打开工程。
1.主函数
int main(void) { uint8_t sd_state = HAL_OK; HAL_Init(); SystemClock_Config(); i2c.initialize(); axp152.initialize(); axp152.set_dcdc1(3500);//[ARM & FPGA BK1/2/6 &OTHER] axp152.set_dcdc2(1200);//[FPGA INT & PLL D] axp152.set_aldo1(2500);//[FPGA PLL A] axp152.set_dcdc4(3300);//[POWER_OUTPUT] axp152.set_dcdc3(3300);//[FPGA BK4][Adjustable] axp152.set_aldo2(3300);//[FPGA BK3][Adjustable] axp152.set_dldo1(3300);//[FPGA BK7][Adjustable] axp152.set_dldo2(3300);//[FPGA BK5][Adjustable] MX_GPIO_Init(); MX_SDMMC1_SD_Init(); MX_USB_DEVICE_Init(); sd_state = HAL_SD_Init(&hsd1); /*配置SD总线宽度(选择4位模式)*/ if (sd_state == HAL_OK) { if (HAL_SD_ConfigWideBusOperation(&hsd1, SDMMC_BUS_WIDE_4B) != HAL_OK) { sd_state = HAL_ERROR; } } LED_ON; while (1) { } }
2.USB_DEVICE初始化
void MX_USB_DEVICE_Init(void) { /* 初始化设备库,添加支持的类并启动该库. */ if (USBD_Init(&hUsbDeviceFS, &FS_Desc, DEVICE_FS) != USBD_OK) { Error_Handler(); } if (USBD_RegisterClass(&hUsbDeviceFS, &USBD_MSC) != USBD_OK) { Error_Handler(); } if (USBD_MSC_RegisterStorage(&hUsbDeviceFS, &USBD_Storage_Interface_fops_FS) != USBD_OK) { Error_Handler(); } if (USBD_Start(&hUsbDeviceFS) != USBD_OK) { Error_Handler(); } /* 启用USB电压检测器 */ HAL_PWREx_EnableUSBVoltageDetector(); }
3.SDMMC1初始化函数
void MX_SDMMC1_SD_Init(void) { hsd1.Instance = SDMMC1; hsd1.Init.ClockEdge = SDMMC_CLOCK_EDGE_RISING; hsd1.Init.ClockPowerSave = SDMMC_CLOCK_POWER_SAVE_DISABLE; hsd1.Init.BusWide = SDMMC_BUS_WIDE_4B; hsd1.Init.HardwareFlowControl = SDMMC_HARDWARE_FLOW_CONTROL_DISABLE; hsd1.Init.ClockDiv = 10; hsd1.Init.TranceiverPresent = SDMMC_TRANSCEIVER_NOT_PRESENT; if (HAL_SD_Init(&hsd1) != HAL_OK) { Error_Handler(); } }
void HAL_SD_MspInit(SD_HandleTypeDef* sdHandle) { GPIO_InitTypeDef GPIO_InitStruct = {0}; if(sdHandle->Instance==SDMMC1) { /* SDMMC1时钟使能 */ __HAL_RCC_SDMMC1_CLK_ENABLE(); __HAL_RCC_GPIOC_CLK_ENABLE(); __HAL_RCC_GPIOD_CLK_ENABLE(); /**SDMMC1引脚配置 PC12 ------> SDMMC1_CK PC11 ------> SDMMC1_D3 PC10 ------> SDMMC1_D2 PD2 ------> SDMMC1_CMD PC9 ------> SDMMC1_D1 PC8 ------> SDMMC1_D0 */ GPIO_InitStruct.Pin = GPIO_PIN_12|GPIO_PIN_11|GPIO_PIN_10|GPIO_PIN_9 |GPIO_PIN_8; GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH; GPIO_InitStruct.Alternate = GPIO_AF12_SDIO1; HAL_GPIO_Init(GPIOC, &GPIO_InitStruct); GPIO_InitStruct.Pin = GPIO_PIN_2; GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH; GPIO_InitStruct.Alternate = GPIO_AF12_SDIO1; HAL_GPIO_Init(GPIOD, &GPIO_InitStruct); } }
4.STORAGE_Read_FS函数
int8_t STORAGE_Read_FS(uint8_t lun, uint8_t *buf, uint32_t blk_addr, uint16_t blk_len) { uint32_t timeout = 10000; if(HAL_SD_ReadBlocks(&hsd1,(uint8_t*)buf, blk_addr, blk_len, timeout) == USBD_OK){ while(((HAL_SD_GetCardState(&hsd1) == HAL_SD_CARD_TRANSFER ) ? HAL_OK : HAL_ERROR) != HAL_OK) { if (timeout-- == 0) { return -1; } } } return (USBD_OK); }
5.STORAGE_Write_FS函数
int8_t STORAGE_Write_FS(uint8_t lun, uint8_t *buf, uint32_t blk_addr, uint16_t blk_len) { uint32_t timeout = 10000; if(HAL_SD_WriteBlocks(&hsd1,(uint8_t*)buf, blk_addr, blk_len, timeout) == USBD_OK){ while(((HAL_SD_GetCardState(&hsd1) == HAL_SD_CARD_TRANSFER ) ? HAL_OK : HAL_ERROR) != HAL_OK) { if (timeout-- == 0) { return -1; } } } return (USBD_OK); }