Hi,
I want to give an external input to the old USRP board using a 1 PPS GPS
output. Is it possible to do so? if yes how?
Where can I access such external inputs in software ?
Thanx.
Regards
Subodh
You can connect the 1PPS to the digital io pins on the basic or lf
daughtercards. From there you can use the read_io() method in python
to read the value on the pins. Just make sure that your 1PPS is
between about 1.5 and 3.3V; under 1.5V it may not be detected, over
3.3V you could fry a pin.
-Kyle
On Tue, Sep 16, 2008 at 23:13, Kyle Pearson
[email protected] wrote:
You can connect the 1PPS to the digital io pins on the basic or lf
daughtercards. From there you can use the read_io() method in python
to read the value on the pins. Just make sure that your 1PPS is
between about 1.5 and 3.3V; under 1.5V it may not be detected, over
3.3V you could fry a pin.
You can also use gr.gpio to record two digital inputs as the least
significant bits of the I and Q stream.
juha