正点原子f407使用cubemx创建 fatfs的一些bug记录

本文主要是介绍正点原子f407使用cubemx创建 fatfs的一些bug记录，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

设置时钟频率

设置SDIO

设置fatfs

设置串口

设置DBUG

生成CubeIDE

这个坑爹东西，默认选了4B，4B会报错，需要在这里设置成1B才行！

main函数

添加一下printf重定向到串口

// 重定向print startint __io_putchar(int ch)
{while ((USART1->SR & 0X40) == 0);USART1->DR = (uint8_t) ch;return ch;
}__attribute__((weak)) int _write(int file, char *ptr, int len)
{int DataIdx;for (DataIdx = 0; DataIdx < len; DataIdx++){__io_putchar(*ptr++);}return len;
}

添加一下打印sd卡信息的函数

void printf_sdcard_info(void)
{uint64_t CardCap;      	//SD卡容�??????HAL_SD_CardCIDTypeDef SDCard_CID;HAL_SD_CardInfoTypeDef  SDCardInfo;HAL_SD_GetCardCID(&hsd,&SDCard_CID);	//获取CIDHAL_SD_GetCardInfo(&hsd,&SDCardInfo);                    //获取SD卡信�??????CardCap=(uint64_t)(SDCardInfo.LogBlockNbr)*(uint64_t)(SDCardInfo.LogBlockSize);	//计算SD卡容�??????switch(SDCardInfo.CardType){case CARD_SDSC:{if(SDCardInfo.CardVersion == CARD_V1_X)printf("Card Type:SDSC V1\r\n");else if(SDCardInfo.CardVersion == CARD_V2_X)printf("Card Type:SDSC V2\r\n");}break;case CARD_SDHC_SDXC:printf("Card Type:SDHC\r\n");break;default:break;}printf("Card ManufacturerID: %d \r\n",SDCard_CID.ManufacturerID);				//制�?�商IDprintf("CardVersion:         %d \r\n",(uint32_t)(SDCardInfo.CardVersion));		//卡版本号printf("Class:               %d \r\n",(uint32_t)(SDCardInfo.Class));		    //printf("Card RCA(RelCardAdd):%d \r\n",SDCardInfo.RelCardAdd);					//卡相对地�??????printf("Card BlockNbr:       %d \r\n",SDCardInfo.BlockNbr);						//块数�??????printf("Card BlockSize:      %d \r\n",SDCardInfo.BlockSize);					//块大�??????printf("LogBlockNbr:         %d \r\n",(uint32_t)(SDCardInfo.LogBlockNbr));		//逻辑块数�??????printf("LogBlockSize:        %d \r\n",(uint32_t)(SDCardInfo.LogBlockSize));		//逻辑块大�??????printf("Card Capacity:       %d MB\r\n",(uint32_t)(CardCap>>20));				//卡容�??????}