Re: [Discuss-gnuradio] GPIO Rx Streaming

2010-06-23 Thread Juha Vierinen
Oops, I read that it was usrp1. Do I understand correctly that this is similar to gr-gpio? I thought VRT allowed separate streams, why are the bits still in the LSB of I and Q? Does this also work with UHD? How about dual DDC? Any news about dual DDC for usrp2? How easy would it be to add this

Re: [Discuss-gnuradio] GPIO Rx Streaming

2010-06-23 Thread Tim Pearce
Juha, Do I understand correctly that this is similar to gr-gpio? I thought VRT allowed separate streams, why are the bits still in the LSB of I and Q? Does this also work with UHD? I'm using pre-UHD/VRT code at the moment - my understanding is the metadata VRT adds applies to a group of

Re: [Discuss-gnuradio] GPIO Rx Streaming

2010-06-23 Thread Matt Ettus
On 06/23/2010 05:37 AM, Tim Pearce wrote: Juha, Do I understand correctly that this is similar to gr-gpio? I thought VRT allowed separate streams, why are the bits still in the LSB of I and Q? Does this also work with UHD? I'm using pre-UHD/VRT code at the moment - my understanding is

[Discuss-gnuradio] GPIO Rx Streaming

2010-06-21 Thread Tim Pearce
Hi, I'm trying to use the LSB streaming functionality but cant seem to get the following code to work: --- self.u=usrp2.source_16sc(options.interface) self.u.set_center_freq(options.freq) self.u.set_decim(options.decim) print Current GPIO State: + str(self.u.read_gpio()) print GPIO

Re: [Discuss-gnuradio] GPIO Rx Streaming

2010-06-21 Thread Juha Vierinen
I'm not sure if the streaming works with the standard firmware. You'll probably need to use a special firmware (std_2rxhb_2tx_dig.rbf). I'm actually using std_2rxint_2tx_dig.rbf, but this is only because I need a different type of filter (boxcar). juha On Mon, Jun 21, 2010 at 14:28, Tim Pearce