Re: [OpenOCD-user] Debugging the Nordic nRF51-DK

[Paul F. <fer...@gm...>]

Hi,

On Mon, Feb 23, 2015 at 05:08:29PM +0900, Golden Yak wrote:
> This board has two selectable debugging firmwares; CMSIS-DAP (mbed) and J-Link
> (Segger). I'd prefer to use CMSIS-DAP but for some reason if the board is
> plugged in with this firmware selected, only a /dev/sdb storage device file is
> created, and there is no /dev/ttyUSB0 or /dev/ttyACM0 created.

CMSIS-DAP exposes HID endpoints, so no wonder, there shouldn't be any
USBx or ACMx devices. OTOH, if jlink works, it'll work faster because
the cmsis-dap driver is not yet optimised.

To debug the issue please show your lsusb output and try running
openocd as root with -d3 (only for testing! if it's indeed a
permissions issue, an appropriate udev rule should be used to allow
regular user to access the adapter, see contrib/99-openocd.rules). If
it doesn't work, please share the -d3 log etc.

HTH
-- 
Be free, use free (http://www.gnu.org/philosophy/free-sw.html) software!
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