> On 17 Feb 2022, at 11:09, Daniel O'Connor <[email protected]> wrote:
> 
> 
> 
>> On 17 Feb 2022, at 17:47, Daniel Braniss <[email protected]> wrote:
>> is there some quirk to enable this chip?
>> it’s an new riskv esp32 board but I can only use the usb to download 
>> software, no console output from it.
> 

> Are you saying that you can flash the board with it?
> 
> If that is the case then the chip/driver are working fine since that requires 
> bidirectional communication etc..
> 

but that works only if I power up the board while pressing a button, then it 
also appears as /dev/ttyU0, and
so then I can flash, after reset, the device is gone and there are errors ( 
BTW, the flashed image workes):

Feb 17 09:46:59 pampero kernel: usbd_setup_device_desc: getting device 
descriptor at addr 4 failed, USB_ERR_IOERROR
Feb 17 09:47:00 pampero kernel: usbd_req_re_enumerate: addr=4, set address 
failed! (USB_ERR_IOERROR, ignored)
Feb 17 09:47:01 pampero kernel: usbd_setup_device_desc: getting device 
descriptor at addr 4 failed, USB_ERR_IOERROR
Feb 17 09:47:01 pampero kernel: usbd_req_re_enumerate: addr=4, set address 
failed! (USB_ERR_IOERROR, ignored)
Feb 17 09:47:03 pampero kernel: usbd_setup_device_desc: getting device 
descriptor at addr 4 failed, USB_ERR_IOERROR
Feb 17 09:47:03 pampero kernel: usbd_req_re_enumerate: addr=4, set address 
failed! (USB_ERR_IOERROR, ignored)
Feb 17 09:47:05 pampero kernel: usbd_setup_device_desc: getting device 
descriptor at addr 4 failed, USB_ERR_IOERROR
Feb 17 09:47:06 pampero kernel: usbd_req_re_enumerate: addr=4, set address 
failed! (USB_ERR_IOERROR, ignored)
Feb 17 09:47:08 pampero kernel: usbd_setup_device_desc: getting device 
descriptor at addr 4 failed, USB_ERR_IOERROR
Feb 17 09:47:08 pampero kernel: ugen0.4: <Unknown > at usbus0 (disconnected)
Feb 17 09:47:08 pampero kernel: uhub_reattach_port: could not allocate new 
device


> --
> Daniel O'Connor
> "The nice thing about standards is that there
> are so many of them to choose from."
> -- Andrew Tanenbaum
> 

cheers,
        danny



Reply via email to