3G模块驱动出错,求助ing
小弟在YC2440 ARM开发板utuLinux2.6.24 下做3G模块华为EM560的驱动,实现3G上网。可板子怎么也不能识别出3G模块,提示如下错误信息:
usb 1-1: new full speed USB device using s3c2410-ohci and address 2
usb 1-1: device descriptor read/64, error -62
usb 1-1: device descriptor read/64, error -62
usb 1-1: new full speed USB device using s3c2410-ohci and address 3
usb 1-1: device descriptor read/64, error -62
usb 1-1: device descriptor read/64, error -62
usb 1-1: new full speed USB device using s3c2410-ohci and address 4
usb 1-1: device not accepting address 4, error -62
usb 1-1: new full speed USB device using s3c2410-ohci and address 5
usb 1-1: device not accepting address 5, error -62
usbcore: registered new interface driver usb-storage
希望各位同仁能为小弟指点下迷津!!!
小弟不胜感激 时序 应该是上电时序问题 回复 2# xxw19840406
谢谢你的回答,是硬件问题,因为没找到华为EM560的电路设计,所以开始找了一款中兴TD模块的设计来做的。。。后来改为EM770W的电路设计做,能成功识别TD模块了,但在ppp拨号拨不上,不知道是不是USIM卡电路有问题
ppp拨号错误是:
OK
ATH0
OK
ATQ0 V1 E1
OK
ATQ0 V1 E1 Z
ERROR
ATQ0 V1 E1 S0=0
OK
ATQ0 V1 E1 S0=0 &C1
OK
ATQ0 V1 E1 S0=0 &C1 &D2
OK
ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
ERROR
AT
OK
ATDT*99***1#
NO CARRIER
Connect script failed
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