Le dimanche 10 décembre 2017 12:57:53 UTC-5, Patrick Poirier a écrit :
>
> I am planning to feed the Pocket using VIN (VIN_AC), or Battery (VIN_BAT)
>
> I am using USB WIFI dongle connected as the wiki 
>
> https://github.com/beagleboard/pocketbeagle/wiki/FAQ#how-do-i-get-additional-usb-connections
> .
> And according to this:  = The Pocket is a HOST By default in the current 
> software, the system should be configured to use this port as a host. 
>
> When I supply power using USB0 , WIFI works ok, 
> but when I feed from P1_1 (VIN) or P2_14, the systems gives this error at 
> boot:
> [    1.269429] musb-hdrc musb-hdrc.1: VBUS_ERROR in a_wait_vrise (81, 
> <SessEnd), retry #3, port1 00000104
> [    1.421860] musb-hdrc musb-hdrc.1: VBUS_ERROR in a_wait_vrise (80, 
> <SessEnd), retry #3, port1 0008010c
>
> Do I have to implement a full USB host system using a TPS2051 to get the 
> WIFI dongle working with VIN or Battery?
>
> Note: I see a reference here about jumping VIN to USB , is it really safe ?
https://beagleboard.org/pocket?place=msg%2Fbeagleboard%2FSWNBrgsjIeA%2F3VZCRZ-vAAAJ
 

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