sday, January 14, 2020 6:44 PM
To: Jeff S
Cc: usrp-users@lists.ettus.com; Thomas Harder
Subject: Re: [USRP-users] using GPIO output to trigger external RF switches
Thomas,
To accomplish what you're talking about, I think you'd just need to use timed
commands on both set_tx_rate() and
ommands like:
>
>
>
> ./gpio --dwell 0 --bitbang --ddr 0x00ff --out 0x0055
>
>
>
> which I verified works using a logic analyzer. I eventually want to try
> to create a keying loop, but that may take some FPGA control (?).
>
>
>
> Jeff
>
>
>
>
>
&
ny other solution to get a pulse each time the transmission
frequency of the USRP is changing?
Thomas
From: Sam Reiter
Sent: Tuesday, January 14, 2020 6:44 PM
To: Jeff S
Cc: usrp-users@lists.ettus.com; Thomas Harder
Subject: Re: [USRP-users] using GPIO output to trigger external RF switches
Thoma
y
> to create a keying loop, but that may take some FPGA control (?).
>
> Jeff
>
>
> --
> *From:* USRP-users on behalf of
> Thomas Harder via USRP-users
> *Sent:* Tuesday, January 14, 2020 5:07 AM
> *To:* usrp-users@lists.ettus.com
Harder via USRP-users
Sent: Tuesday, January 14, 2020 5:07 AM
To: usrp-users@lists.ettus.com
Subject: [USRP-users] using GPIO output to trigger external RF switches
Hi,
I am continuously transmitting a waveform with several RF with 200MSPS with my
USRP X310 (modified code on the basis of
Hi,
I am continuously transmitting a waveform with several RF with 200MSPS with my
USRP X310 (modified code on the basis of “tx_samples_from_file.cpp” with a
waveform in a .dat file). I would like to get a trigger signal from the USRP
when it is changing the tx- frequency which I set in my .dat
