下载的测试固件，开机之后就一直打印下面语句，速度很快都没有办法输入命令了。请问一下，这个是怎么回事呢？
[ 43.815995] usb 1-1: new high-speed USB device number 32 using sunxi-ehci
[ 43.816087] sunxi-ehci 4200000.ehci1-controller: ehci_irq: highspeed device disconnect
[ 43.832516] sunxi-ehci 4200000.ehci1-controller: ehci_irq: highspeed device connect
[ 44.276020] usb 1-1: device not accepting address 32, error -71
[ 44.645990] usb 1-1: new high-speed USB device number 33 using sunxi-ehci
[ 44.646085] sunxi-ehci 4200000.ehci1-controller: ehci_irq: highspeed device disconnect
[ 44.662510] sunxi-ehci 4200000.ehci1-controller: ehci_irq: highspeed device connect
[ 45.105985] usb 1-1: device not accepting address 33, error -71
[ 45.113370] usb usb1-port1: unable to enumerate USB device
[ 45.125827] sunxi-ehci 4200000.ehci1-controller: ehci_irq: highspeed device disconnect
[ 45.134718] sunxi-ehci 4200000.ehci1-controller: ehci_irq: highspeed device connect
[ 45.143307] sunxi-ohci 4200400.ohci1-controller: ohci_irq: fullspeed or lowspeed device disconnect
[ 45.153374] sunxi-ehci 4200000.ehci1-controller: ehci_irq: highspeed device connect
[ 45.175988] sunxi-ehci 4200000.ehci1-controller: ehci_irq: highspeed device disconnect
[ 45.184879] sunxi-ehci 4200000.ehci1-controller: ehci_irq: highspeed device connect
[ 45.205983] sunxi-ehci 4200000.ehci1-controller: ehci_irq: highspeed device disconnect
[ 45.214874] sunxi-ehci 4200000.ehci1-controller: ehci_irq: highspeed device connect
[ 45.246003] sunxi-ohci 4200400.ohci1-controller: ohci_irq: fullspeed or lowspeed device disconnect
[ 45.575979] usb 1-1: new high-speed USB device number 34 using sunxi-ehci
[ 45.576085] sunxi-ehci 4200000.ehci1-controller: ehci_irq: highspeed device disconnect
[ 45.592489] sunxi-ehci 4200000.ehci1-controller: ehci_irq: highspeed device connect
[ 45.946019] random: crng init done
[ 45.946091] sunxi-ehci 4200000.ehci1-controller: ehci_irq: highspeed device disconnect
[ 45.949845] random: 2 urandom warning(s) missed due to ratelimiting
[ 45.958743] sunxi-ehci 4200000.ehci1-controller: ehci_irq: highspeed device connect
[ 45.979282] usb 1-1: device descriptor read/64, error -71
ssh-keygen: generating new host keys: RSA [ 46.475991] usb 1-1: device descriptor read/64, error -71
[ 46.476087] sunxi-ehci 4200000.ehci1-controller: ehci_irq: highspeed device disconnect
[ 46.490932] sunxi-ehci 4200000.ehci1-controller: ehci_irq: highspeed device connect
[ 46.966000] usb 1-1: new high-speed USB device number 35 using sunxi-ehci
[ 46.966086] sunxi-ehci 4200000.ehci1-controller: ehci_irq: highspeed device disconnect
[ 46.982527] sunxi-ehci 4200000.ehci1-controller: ehci_irq: highspeed device connect
[ 47.365986] usb 1-1: device descriptor read/64, error -71
[ 47.366084] sunxi-ehci 4200000.ehci1-controller: ehci_irq: highspeed device connect
[ 47.866000] usb 1-1: device descriptor read/64, error -71
[ 47.866088] sunxi-ehci 4200000.ehci1-controller: ehci_irq: highspeed device disconnect
[ 47.880954] sunxi-ehci 4200000.ehci1-controller: ehci_irq: highspeed device connect
[ 47.986059] usb usb1-port1: attempt power cycle
[ 48.695988] usb 1-1: new high-speed USB device number 36 using sunxi-ehci
[ 48.696085] sunxi-ehci 4200000.ehci1-controller: ehci_irq: highspeed device connect
如果使用自带的SPI——flash固件,就会一直打印下面内容！
t113 login: [ 29.201759] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 30.241433] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 31.281236] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 32.321127] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 33.361033] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 34.400709] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 35.440453] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 36.480330] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 37.520328] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 38.560304] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 39.600387] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 40.640403] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 41.680246] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 42.720077] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 43.759846] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 44.799716] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 45.839668] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 46.879707] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 47.919844] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 48.959894] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 49.999880] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 51.039717] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 52.079602] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 53.119749] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 54.159793] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 55.199714] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 56.239813] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 57.279989] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 58.320124] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 59.360199] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 60.400261] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 61.440232] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 62.480284] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 63.520277] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 64.560418] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 65.600623] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 66.640635] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 67.680717] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 68.720742] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 69.760668] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 70.800597] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 71.840586] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 72.880657] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 73.920709] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 74.960826] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 76.000932] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 77.041021] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 78.081007] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
[ 79.121273] configfs-gadget 4100000.udc-controller: failed to start g1: -19
sh: write error: No such device
这是USB HUB芯片连接出现了问题，请问您是否有焊接过HUB芯片 或者USB座子周边电路？
没有焊接过。我正常使用过程中，复位之后就变成这样了。
这个确实存在问题，请尝试烧录配套的 TF卡系统镜像，重启开发板进行尝试，如果依旧存在问题，请联系客服，给我寄回来我们专门排查一下。
1 个赞
网上说是供电不足的原因，现在使用充电头进行供电，这个问题就没有再出现了。