Re: [Discuss-gnuradio] usrp_sink_s and other quick questions

2007-05-22 Thread Steven Clark
Thanks for the clarification Eric. I was being a bit disingenuous by not revealing what I was really trying to do. I don't actually care what's being sent to the DAC. As I hinted at in an earlier email, what we've done is create a custom verilog load that takes the data lines after the FIFO but be

Re: [Discuss-gnuradio] usrp_sink_s and other quick questions

2007-05-21 Thread Eric Blossom
On Mon, May 21, 2007 at 04:19:58PM -0400, Steven Clark wrote: > If I need pin-level access to the DAC chip, sink_s is my only option AFAIK. > I understand that it's interleaved I&Q, don't worry about that. > My original questions remain. > > On 5/21/07, Eric Blossom <[EMAIL PROTECTED]> wrote: > >

Re: [Discuss-gnuradio] usrp_sink_s and other quick questions

2007-05-21 Thread Steven Clark
If I need pin-level access to the DAC chip, sink_s is my only option AFAIK. I understand that it's interleaved I&Q, don't worry about that. My original questions remain. On 5/21/07, Eric Blossom <[EMAIL PROTECTED]> wrote: On Mon, May 21, 2007 at 10:48:04AM -0400, Steven Clark wrote: > Hi all- >

Re: [Discuss-gnuradio] usrp_sink_s and other quick questions

2007-05-21 Thread Eric Blossom
On Mon, May 21, 2007 at 10:48:04AM -0400, Steven Clark wrote: > Hi all- > > Several quick questions. > 1) For usrp sink_s, which bit of the short activates the MSB of the DAC > chip? I.e., if I send 0bABCDEFGH IJKLMNOP, where each letter is either a 1 > or a 0, which letter matches the MSB? First

[Discuss-gnuradio] usrp_sink_s and other quick questions

2007-05-21 Thread Steven Clark
Hi all- Several quick questions. 1) For usrp sink_s, which bit of the short activates the MSB of the DAC chip? I.e., if I send 0bABCDEFGH IJKLMNOP, where each letter is either a 1 or a 0, which letter matches the MSB? 2) If I want to generate a stream of alternating zeros and ones (stored in byt