Re: [OpenOCD-user] nrf51 stlink reset question

[Myles W. <my...@gm...>]

On Fri, Nov 21, 2014 at 12:41 PM, Myles Watson <my...@gm...> wrote:

> First of all, thanks for the great tool!
>
> I'm using OpenOCD 0.9.0 with an stlink to program a nRF51822 using hla_swd.
>

I forgot to include the command line that I'm using:

sudo ../src/openocd -f interface/stlink-v2.cfg -c "transport select
hla_swd" -f target/nrf51.cfg -c "program image.bin reset"


> I'd like to disable the debugging mode as part of programming the chip.
> In order to do that, the RESET register in the POWER module needs to be
> written, and then swdioclk and swdio need to be held low for a minimum of
> 100us.
>
> Since the nRF51822 has a shared swdio/nreset line, the reset doesn't work
> if the chip is not returned to normal mode.
>
> Where should I add a "hard-reset" function which is specific to the
> nRF51822 and SWD?
>
> Thanks,
> Myles
>