页次: 1
请问大佬 RTL8188FTV 插上后如下报错是哪里出问题了呢?
# [ 26.021868] usb 1-1: new high-speed USB device number 2 using musb-hdrc
[ 26.171873] usb 1-1: device descriptor read/64, error -71
[ 26.881853] usb 1-1: device not accepting address 2, error -71
[ 27.031885] usb 1-1: new high-speed USB device number 3 using musb-hdrc
[ 27.621835] usb 1-1: device not accepting address 3, error -71
[ 27.627914] usb usb1-port1: attempt power cycle
[ 27.851865] usb 1-1: new high-speed USB device number 4 using musb-hdrc
[ 27.882463] usb 1-1: device descriptor read/8, error -71
[ 28.032381] usb 1-1: device descriptor read/8, error -71
[ 28.302000] usb 1-1: new high-speed USB device number 5 using musb-hdrc
[ 28.741861] usb 1-1: device not accepting address 5, error -71
[ 28.747939] usb usb1-port1: unable to enumerate USB device
[ 32.872001] musb-hdrc musb-hdrc.1.auto: VBUS_ERROR in a_suspend (80, <SessEnd), retry #0, port1 00000505
[ 35.041949] usb 1-1: new high-speed USB device number 6 using musb-hdrc
[ 35.191934] usb 1-1: device descriptor read/64, error -71
[ 41.817495] musb-hdrc musb-hdrc.1.auto: Babble
[ 42.371970] usb usb1-port1: Cannot enable. Maybe the USB cable is bad?
[ 42.378757] usb usb1-port1: attempt power cycle
[ 42.601852] usb 1-1: new high-speed USB device number 8 using musb-hdrc
[ 42.632411] musb-hdrc musb-hdrc.1.auto: Babble
[ 43.411857] usb 1-1: new high-speed USB device number 9 using musb-hdrc
[ 43.442366] usb 1-1: device descriptor read/8, error -71
[ 43.592232] usb 1-1: device descriptor read/8, error -71
[ 43.712062] usb usb1-port1: unable to enumerate USB device
[ 45.422002] musb-hdrc musb-hdrc.1.auto: VBUS_ERROR in a_suspend (80, <SessEnd), retry #0, port1 00000505
[ 47.141858] usb 1-1: new high-speed USB device number 10 using musb-hdrc
[ 47.291858] usb 1-1: device descriptor read/64, error -71
[ 47.643520] musb-hdrc musb-hdrc.1.auto: Babble
[ 48.371869] usb 1-1: new high-speed USB device number 11 using musb-hdrc
[ 48.508205] musb-hdrc musb-hdrc.1.auto: Babble
[ 48.961967] usb usb1-port1: attempt power cycle
[ 49.401841] usb 1-1: new high-speed USB device number 12 using musb-hdrc
[ 49.432433] usb 1-1: device descriptor read/8, error -71
[ 49.582337] usb 1-1: device descriptor read/8, error -71
[ 49.812023] musb-hdrc musb-hdrc.1.auto: Babble
[ 49.851936] usb 1-1: new high-speed USB device number 13 using musb-hdrc
[ 50.641853] usb 1-1: new high-speed USB device number 14 using musb-hdrc
[ 50.791860] usb 1-1: device descriptor read/64, error -71
[ 51.025990] musb-hdrc musb-hdrc.1.auto: Babble
[ 51.871877] usb 1-1: new high-speed USB device number 15 using musb-hdrc
[ 56.212145] usb usb1-port1: attempt power cycle
https://www.cnblogs.com/liuwushenshi/articles/17791164.html
找到问题了,是usb转ttl接线接错了~ 连的tx和tx ,rx和rx 🤡
应该是 TTL的TX ->nano的U0RX、RX ->nano的U0TX。
接USB看能否进入FEL烧录模式,如果能进入,说明没有运行程序。
谢谢晕哥,卖家说板子是已经烧录过Xboot的,不知道是不是这个原因。
现在拔掉tf卡短接 flash 1,4 引脚可以正常进入fel模式
按照这篇文章 又重新编译烧录了Uboot,串口还是无输出
abc@ubuntu:~/LicheeNano/u-boot$ sudo sunxi-fel -p spiflash-write 0 u-boot-sunxi-with-spl.bin
100% [================================================] 1008 kB, 61.8 kB/s
usb转ttl连了TX、RX,板载microUSB也连了电脑
不知道是哪里出了问题
页次: 1