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                            >[danger] 注意：SD卡的驅動引腳和串口2復用了，因此串口2無法使用，如果調試終端是在串口2上，那么開啟SD卡后我們只能采用ADB調試了；同時，切記，板子需要接上5V1A的適配器供電，不然硬件上SD卡的驅動電源會缺失！

SD卡首先需要格式化為fat32格式，然后將SD卡接入卡槽中，輸入命令fdisk -l可以看到存儲設備的信息，SD卡是自動mount的，因此直接在/mnt/sdcard目錄下就可以看到內容：
![](https://img.kancloud.cn/ff/2f/ff2f229e453d0cdc3dd5c2476ed3b9eb_832x322.png =600x)
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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