From: Dave Taht <dave.taht@gmail.com>
To: Chris Kuethe <chris.kuethe@gmail.com>
Cc: thumbgps-devel@lists.bufferbloat.net
Subject: Re: [Thumbgps-devel] Build vs. modify vs. what should we be doing anyway?
Date: Mon, 12 Mar 2012 20:16:57 -0700 [thread overview]
Message-ID: <CAA93jw5bw_v0TqzvotTShTZnkiXc7TwmOfyDX697E-3cBdgS3A@mail.gmail.com> (raw)
In-Reply-To: <CAGHP0pJmewAQHFEtc25G7d9h5+gp2ZFj5f_7ndTn0g_W4CVi0A@mail.gmail.com>
On Mon, Mar 12, 2012 at 8:06 PM, Chris Kuethe <chris.kuethe@gmail.com> wrote:
> On Mon, Mar 12, 2012 at 20:04, Dave Taht <dave.taht@gmail.com> wrote:
>> On Mon, Mar 12, 2012 at 8:00 PM, Ron Frazier (NTP)
>> hmm.. Anyone know anything about this puppy?
>>
>> http://www.u-blox.com/en/gps-chips/timing-a-raw-data-chip/ubx-g6010-st-tm.html
>
> Well, if it's anything like other ublox receivers it'll be pretty good
> for timing.
>
> I'm glad we still have docs for earlier devices: "The UBX-G6010-ST
> Data Sheet, Hardware Integration Manual, and Receiver Description
> Including Protocol Specification require an NDA and can be obtained by
> contacting u-blox"
I've read up a lot of this chips features, it has 12Mbit usb onboard,
also spi, this was some info on the timing stuff....
https://www.u-blox.com/images/downloads/Product_Docs/Timing_AppNote_%28GPS.G6-X-11007%29.pdf
wish I knew how much it was...
not clear to me just how much usb there is to the usb - is additional
glue/firmware/cpu neeeded?
>>> On 3/12/2012 10:42 PM, Chris Kuethe wrote:
>>>>
>>>> On Mon, Mar 12, 2012 at 19:38, Ron Frazier (NTP)
>>>> <timekeepingntplist@c3energy.com> wrote:
>>>>
>>>>>
>>>>> I think configuration data should be stored in flash. That way extended
>>>>> power off periods are not a problem.
>>>>>
>>>>> My BU-353 has a supercap. That's better than a battery that I might have
>>>>> to
>>>>> replace, or possibly couldn't replace. But I don't like knowing that, if
>>>>> I
>>>>> unplug it for a week, I'm going to have to reprogram it.
>>>>>
>>>>
>>>> See, I wouldn't mind losing the config after a few hours without
>>>> power. At least that way you have a way to reset the serial port when
>>>> it gets hopelessly confused - a situation known to gpsd as the
>>>> bluetooth problem.
I like the idea of onboard flash, which is why I went looking for the
atmel. Although sparkfun lists it as obsolete, I don't see an obvious
replacement from atmel....
And a supercap to stay alive as long as possible.
I think I've done enough damage to the potential pricepoint for one day...
--
Dave Täht
SKYPE: davetaht
US Tel: 1-239-829-5608
http://www.bufferbloat.net
next prev parent reply other threads:[~2012-03-13 3:16 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-10 18:02 Patrick Maupin
2012-03-12 21:03 ` Eric S. Raymond
2012-03-12 21:18 ` tz
2012-03-12 21:26 ` Eric S. Raymond
2012-03-12 21:28 ` Patrick Maupin
2012-03-12 21:39 ` Eric S. Raymond
2012-03-12 22:10 ` Patrick Maupin
2012-03-12 22:23 ` tz
2012-03-12 22:33 ` Patrick Maupin
2012-03-13 2:29 ` Ron Frazier (NTP)
2012-03-13 2:39 ` Chris Kuethe
2012-03-12 22:45 ` Eric S. Raymond
2012-03-12 23:01 ` Dave Taht
2012-03-13 1:43 ` Eric S. Raymond
2012-03-13 2:04 ` Chris Kuethe
2012-03-13 2:13 ` Eric S. Raymond
2012-03-13 2:40 ` Dave Taht
2012-03-13 2:53 ` Chris Kuethe
2012-03-13 4:54 ` Eric S. Raymond
2012-03-13 13:23 ` Dave Taht
2012-03-13 14:35 ` tz
2012-03-13 16:04 ` Eric S. Raymond
2012-03-13 16:22 ` tz
2012-03-13 2:38 ` Ron Frazier (NTP)
2012-03-13 2:42 ` Chris Kuethe
2012-03-13 3:00 ` Ron Frazier (NTP)
2012-03-13 3:04 ` Dave Taht
2012-03-13 3:06 ` Chris Kuethe
2012-03-13 3:16 ` Dave Taht [this message]
2012-03-13 3:31 ` Chris Kuethe
2012-03-13 4:49 ` Dave Taht
2012-03-13 4:55 ` Eric S. Raymond
2012-03-13 4:16 ` Eric S. Raymond
2012-03-12 21:40 ` tz
2012-03-12 21:27 ` Patrick Maupin
2012-03-12 21:22 ` Patrick Maupin
2012-03-12 21:37 ` Eric S. Raymond
2012-03-12 21:45 ` Patrick Maupin
2012-03-12 22:02 ` Eric S. Raymond
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