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vogelchr

  • Registered on: 02/18/2016
  • Last connection: 09/11/2018

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09/10/2018

11:22 AM E1/T1 Hardware Interface Feature #3272: next-generation osmo-e1-xcvr board
_My already dated notes from bringup, so that the info doesn't get lost._
- due to PLL restrictions we cannot gene...

07/04/2018

07:05 AM E1/T1 Hardware Interface Feature #3272: next-generation osmo-e1-xcvr board

> > - GPS receiver rx/tx/pps doen't have series termination (27R or
> > the like), possibly resul...

07/03/2018

06:46 PM E1/T1 Hardware Interface Feature #3272: next-generation osmo-e1-xcvr board
Waiting for my plumber -- who did not arrive, btw :-( -- I integrated most of the comments from laforge. If no one ma...

06/25/2018

07:43 PM E1/T1 Hardware Interface Feature #3272: next-generation osmo-e1-xcvr board
I've updated the files in the github repo listed above, ..._v7.brd/sch. The IDT LIU is smaller and needs less externa...
06:02 AM E1/T1 Hardware Interface Feature #3272: next-generation osmo-e1-xcvr board
I'm soliciting comments on my latest revision for a LIU + Microcontroller + GPS + Oscillator board, I've postet it (f...

06/01/2018

09:09 PM E1/T1 Hardware Interface Feature #3237: Come up with GPS-DO design for E1 Interface
SAM-BA over USB works for an 18.432 MHz XTAL (9*2.048), but the boot code seems to expect a crystal, not an external ...

05/22/2018

05:22 PM E1/T1 Hardware Interface Feature #3237: Come up with GPS-DO design for E1 Interface
I've drawn up the clocking scheme proposed by tnt on top of a page of the SAM4S user manual. The programmable clock c...
05:11 PM E1/T1 Hardware Interface Feature #3275: release connor-winfield + SJ-2523 EAGLE footprints
Footprint for the other VCXO.

05/17/2018

10:12 AM E1/T1 Hardware Interface Feature #3272: next-generation osmo-e1-xcvr board
tnt wrote:
> I'm not sure how "bad" it is. But it's more in relation with what the gain of using a precision voltage...

05/06/2018

10:53 AM E1/T1 Hardware Interface Feature #3237: Come up with GPS-DO design for E1 Interface
If we do it all within a microcontroller, and to receive E1 bits we probably want to sample the incoming signal at a ...

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