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Re: [gpsd-users] Telit SE868-V3

From: Martin Townsend
Subject: Re: [gpsd-users] Telit SE868-V3
Date: Fri, 24 Mar 2017 20:09:38 +0000

On Fri, Mar 24, 2017 at 6:49 PM, Gary E. Miller <address@hidden> wrote:
> Yo Martin!
Thanks for the Swift reply Gary.

> On Fri, 24 Mar 2017 17:06:45 +0000
> Martin Townsend <address@hidden> wrote:
>> I'm trying to get gpsd working with a custom board that has a Telit
>> SE868-V3 chip.
> Fun.
Indeed :)
>> Firstly will it be possible to use gpsd with this chip? The product
>> user guide says the chip supports
>>     NMEA v3.1 command input and data output
>>     OSP (binary) command input and data output
> All you need is the NMEA.  When you have the GPS talking to gpsd we can
> see is the binary has any advantage.
NMEA would probably do so I'll use this, does it use this by default?
>> Secondly the chip is connected via SPI, does this mean I have to write
>> some SPI->UART type Linux kernel driver or is there something I can do
>> with SPIDEV?
> Now you are out of our area of expertise.  SPI is very common with
> RasPi's, BBB's, etc.  I'm guessing you can find a goold SPI->UART
> solution for you easily.
I haven't found any SPI->UART kernel drivers only for actual SPI->UART
chips like the max3100.  I have no problems writing one but I see that
you have some sort of driver model within gpsd, would it be possible
to use this to make gpsd use spidev?

> ---------------------------------------------------------------------------
> Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
>         address@hidden  Tel:+1 541 382 8588
>             Veritas liberabit vos. -- Quid est veritas?
>     "If you can’t measure it, you can’t improve it." - Lord Kelvin

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