[mat-wg] Trimble GPS from old TTM

Hi,
On 13 May 2014, at 8:13, Mark Santcroos <mark at santcroos.net> wrote:

> Hi,
> 
> I believe the setup was only ever used on FreeBSD, so your luck may
> vary on Linux.
> Other than that my memory has faded too much to provide any specific hints.
> 
> Gr,
> 
> Mark
> 
> 
> On Tue, May 13, 2014 at 12:44 AM, Antonio M. Moreiras <moreiras at nic.br> wrote:
>> Hello, we are trying to reuse the trimble GPS from our old TTM server in
>> a Linux NTP machine, and it is not working.
>> 
>> We can read some trash with a "cat /dev/ttyS0" (what means that the GPS
>> is sending information), and we can use PPS driver (127.127.22.0) to
>> read correctly the PPS signal. But the driver from RIPE (127.127.43.0)
>> doesn't work.

Do you still have the so called “clock card” in between? which is basically a rs422 to rs232 protocol converter + power supply.

you might want to hook up the antenna to a windows pc so you can run the windows diagnostics tools from trimble to see if it is still working. you want to see that ntp status converges to 0x2107 after some time.

Best Regards,
	Ruben

>> 
>> We compiled the ntpd (version 4.2.6p5) with the following options:
>> 
>> ./configure --with-openssl-libdir=/usr/lib/x86_64-linux-gnu
>> --with-openssl-incdir=/usr/include --enable-RIPENCC
>> 
>> Our Linux is:
>> 
>> # uname -a
>> Linux monitor 3.11.0-20-generic #35~precise1-Ubuntu SMP Fri May 2
>> 21:32:55 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
>> 
>> # lsb_release -a
>> No LSB modules are available.
>> Distributor ID:    Ubuntu
>> Description:    Ubuntu 12.04.4 LTS
>> Release:    12.04
>> Codename:    precise
>> 
>> Only after follow the recommendations at
>> http://linuxpps.org/wiki/index.php/LinuxPPS_NTPD_support, the driver
>> 127.127.43.0 is loaded by NTP, and appears in the list of peers, but no
>> sync, just zeros.
>> 
>> Does anyone in this list have any tips?
>> 
>> Regards,
>> Moreiras.
>> 
> 

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