[ntp:hackers] u-blox reference clock driver

MLewis mlewis000 at rogers.com
Tue Aug 14 10:50:42 UTC 2018


A little more and you can have the USB already available through #217 below.

I believe the #218 and #240 are the M8T boards of theirs that have the 
full pinouts accessible for "Output avail for use Time Pulse 1, Time 
Pulse 2, Interupt 0, Interuprt 1, all pins for SPI, UART, USB, I2C 

I like the #218, as I can have the GPS module slightly remote from the 
coms breakout board, so it's inside an insulated aluminum bottle.

My bad. First link below should have been


On 13/08/2018 1:16 PM, MLewis via devel wrote:
> I don't think so. I don't see the pin outs for the Timestamps on that 
> board. I haven't checked if that module has them.
> If I understand what was used, it was the EXTINT0 and EXTINT1 inputs 
> that cause the GPS module to take a Timemark (timestamp), which is 
> output as UBX-Tim-TM2 messages. See page 69 of the M8T manual.
> I do have them on my M8T from CSG
> https://www.csgshop.com/product.php?id_product=195
> accessed through
> https://www.csgshop.com/product.php?id_product=217
> with this cable
> https://www.csgshop.com/product.php?id_product=216
> I'd take a photo, but you can see such on those links.
> The M8T they sent me was the old version, without the firmware for 
> GAL. And they wouldn't respond, but changed their web page so it was 
> no longer saying they came including GAL.
> However, others who got an M8T board from them since got the newer M8T 
> that had the firmware that sees GAL.

On 14/08/2018 12:52 AM, Udo van den Heuvel via devel wrote:
> On 14-08-18 05:57, Udo van den Heuvel via devel wrote:
>> On 13-08-18 22:10, Gary E. Miller via devel wrote:
>>>> Again, no -- you could easily read the documentation, though or you
>>>> can go over to the uBlox Forum if you don't believe me.
>>> CAre to be more specific on which u-blox support EXTINT0?
>> Found an LEA-M8T at 
>> https://www.csgshop.com/product.php?id_product=200 but this one has 
>> TIME1 and TIME2 besides power and RX/TX pairs.
> https://www.csgshop.com/product.php?id_product=240 is cheaper and has 
> EXTINT0 and EXTINT1 document in the pictures.
> Now: how to set the serial ports using USB?, to be rs232 compliant?
> And: need a PCIe TTL serial port card :-)
> Udo
> _______________________________________________
> devel mailing list
> devel at ntpsec.org
> http://lists.ntpsec.org/mailman/listinfo/devel

More information about the devel mailing list