[OpenOCD-user] Programming an nRF52840 via FT231XQ

[Tim H. <th...@ga...>]

Greetings,

I've got a BLE module which has an nRF52840 connected with its SWDIO
and SWDCLK connected to an FTDI FT231XQ single UART CBUS1/CBUS2 pins.
I'm hoping to program the nRF52840's flash via OpenOCD. It looks like
openocd git master currently supports the nRF52840 and it seems I
should be using the 'ftdi' driver but I'm a bit unclear if it supports
the FT231XQ single UART chip and what my interface config file should
look like.

I've currently got:
tcl/interface/ftdi/ft231xq-swd.cfg
# Layout:  FTDI FT231XQ
#   CBUS0 N/C
#   CBUS1 BLE_SDIO
#   CBUS2 BLE_SCLK
#   CBUS0 N/C

interface ftdi
ftdi_device_desc "USB-JTAG"
ftdi_vid_pid 0x0403 0x6015
ftdi_layout_init 0x0006 0x0006
ftdi_layout_signal SWD_EN -data 0
transport select swd

Any help would be greatly appreciated!

Best Regards,

Tim