Arm-usb-tiny swd windows 8.1 x64 and probably nrf51 problems

[mikl]

Hi!
I have Arm-usb-tiny and arm-jtag-swd. I need to debug/flash nrf51822 chip using SWD. I'm using openocd 0.9.0, windows 8.1 x64. I tried WinUsb driver from zadig. SWD did not work. I tried different d2xx drivers and ftdi profile and I received LIBUSB_ERROR_NOT_FOUND. So which drivers do I need to use with openocd 0.9.0 and SWD?

Thanks

[JohnS]

Stay away from d2 stuff and only use recent ftdi (if any), not older ft stuff.

Other than that, if no luck post details on oocd ML.

John

[mikl]

Stay away from d2 stuff and only use recent ftdi (if any), not older ft stuff.

So do I need to use VCP driver from FTDI?

[JohnS]

I don't think so.

oocd goes via USB packets.  You "just" have to keep Windoze out of the way (I'm on Linux, much simpler).

John

[mikl]

The problem is solved. I used Zadig WinUsb drivers and ftdi driver in openocd. The problem was in lenovo 3g modem (ericson f3507g) that conflicts with libusb. The same problems I had with st-link v2. I'v just disabled modem in device manager. That's a dirty workaround, I don't know what to do if I need 3g internet the same time.