Re: [OpenOCD-user] nrf51 stlink reset question

[Angus G. <gu...@pr...>]

On Fri, Nov 21, 2014 at 12:41:30PM -0800, Myles Watson wrote:
> 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?

Hi Myles,

Did you have any luck with this? I saw the post when you originally
made it, but I didn't reply as I didn't really have any good ideas -
as far as I know you can't directly control the SWDIO and SWCLK pins
on the STLinkv2 adapter, as it's a "high level adapter" (hla) type and
its protocol doesn't give you that low level of control. :(


Angus