Libresdr: PPS input

[OlivierORPB]

Hi everyone,
We have a Hamgeek/rev5 and after some trouble during u-boot flashing, I lost it. Nethertheless, I succeeded in compiling and flashing a sd card base on this repo. First, thank you very much for this share ! We also succeeded to discipline the LO with an external GPSDO signal (LBE 1421).
Could you tell me if the PPS input can be used to sync the OS (looking at the schematics and information in some .v file, I'm not sure) ? I need very precise timestamps for producing Doppler data. If this function is not yet implemented, I can contribute.
Thank you for your help,
Happy new year,
Olivier

[F5OEO]

External sync is still under development.
I am actually refactoring the hdl part to be more modular, and the next target is sync : 1 pps and 10mhz.
Your project seems very interesting, and contributions are always greatly appreciated.
Hope we can discuss direct (by mail) in french !
Meilleurs 73
Evariste

[davemwave]

Sounds great, Evariste. I was wondering if connecting a 10MHz reference will make external sync (see #184 (comment) ). I do not notice any change when I connect 10 MHz other than the LED turning on. Maybe I am using the wrong version. If not, I am willing to help. Merci beaucoup, 73 de W1SZ

[F5OEO]

I will work on it very soon. The implementation of external sync is not complete. Only led detection but not yet control the vctxo. Stay tuned.

[davemwave]

D'accord, je peux participer aux tests "bêta" si tu veux. J'ai également les outils Vivado et RF.

[OlivierORPB]

Hello Evariste, I do not know if you received my last message ? If not ,could you tell me how can I reach you from email ? Many thanks ! Olivier

[F5OEO]

@OlivierORPB evaristec at gmail

[DG9BFC]

https://mega.nz/folder/x6hFxCgK#GCcuiII_XcBPNLPDq88Osg
here you will find fw by manfred dl1jm .. and .. 10mhz works fine
drop me a amil for further description how to use
dg9bfc sigi