Re: [Paparazzi-devel] usb upload error

[Stuart MacIntosh]

i think the device is 'bouncing' on and off your USB host

this might be caused by a power supply problem? the -71 error may follow
the USB host failing to receive reply from device. although, i havn't
built a board yet sorry


On 26/05/12 01:45, wang yao wrote:
> hi all
>
> i have lisa 2.0 assembled by myself  , i use stm32F105RCT6 and a 12M
> crystal but i cant use the luftboot. when i change a 8M  crystal and the
> leds runs up and down ,so i thought that was good sign.
>
> when i flash it in paparazzi center. the error shows
>
> No devices found!
> make[1]: *** [upload] error 255
> make[1]:leaving dir `/home/administrator/paparazzi/sw/airborne'
> make: *** [ap.upload] error 2
> make:leaving dir “/home/administrator/paparazzi”
>
>
> and i type dmesg in the terminal and i can see this:
>
>
> [  129.204082] usb 5-1: new full speed USB device number 14 using uhci_hcd
> [  129.324093] usb 5-1: device descriptor read/64, error -71
> [  129.548110] usb 5-1: device descriptor read/64, error -71
> [  129.764124] usb 5-1: new full speed USB device number 15 using uhci_hcd
> [  129.884128] usb 5-1: device descriptor read/64, error -71
> [  130.108080] usb 5-1: device descriptor read/64, error -71
> [  130.324117] usb 5-1: new full speed USB device number 16 using uhci_hcd
> [  130.732093] usb 5-1: device not accepting address 16, error -71
> [  130.844067] usb 5-1: new full speed USB device number 17 using uhci_hcd
> [  131.252081] usb 5-1: device not accepting address 17, error -71
> [  131.252106] hub 5-0:1.0: unable to enumerate USB device on port 1
>
>
> i have tried almost every thing (connect ADC2 to GND, installed the
> python-usb,add rules....)
>
> so what goes wrong on the lisa board?
>
>
>
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