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List:       openocd-development
Subject:    Re: [OpenOCD-devel] [PATCH]: 34b46f6 cfg: LPC17xx default to using SYSRESETREQ to reset target
From:       Jörg_Fischer <turboj () gmx ! de>
Date:       2014-01-25 14:46:01
Message-ID: 52E3CE29.9070208 () gmx ! de
[Download RAW message or body]

Hi,
Am 22.01.2014 13:52, schrieb Spencer Oliver:
> On 22 January 2014 11:44, Peter Stuge <peter@stuge.se> wrote:
>> gerrit@openocd.zylin.com wrote:
>>>     cfg: LPC17xx default to using SYSRESETREQ to reset target
>>>
>>>     Originally the LPC17xx user guide (UM10360 Rev 2) stated that SYSRESETREQ
>>>     was not supported, so this was the default cortex_m reset mode.
>>>
>>>     Rev 3 of the same user guide states that it is now supported.
>> Is there some lpc17xx errata documentation on the topic, or was it
>> always just a documentation error?
>>

Looks like an error in the documentation. It was never mentioned in the
errata sheet.
> It was a note in the main user guide (rev2) -
> "This is intended to force a large system reset of all major
> components except for debug. Note: support for
> SYSRESETREQ is not included in LPC17xx devices."
>
> I never tested it before as i have only just got access to a lpc17xx,
> and if the user has srst connected then this does not matter anyway.

I was almost sure it did not work before, but I tested it just now on my
Hitex LPC1768 Stick and it worked.
This older stick has the initial revision of the LPC1768 with the RTC bug.

-- J. Fischer

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