[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Discuss-gnuradio] USRP packet parsing
From: |
Eric Blossom |
Subject: |
Re: [Discuss-gnuradio] USRP packet parsing |
Date: |
Sun, 25 Mar 2007 08:36:45 -0700 |
User-agent: |
Mutt/1.5.9i |
On Sat, Mar 24, 2007 at 05:59:06PM -0400, Brian Padalino wrote:
> On 3/24/07, Thibaud Hottelier <address@hidden> wrote:
> >I updated the wiki paged and added state machines.
> >(http://gnuradio.org/trac/wiki/UsrpTxModifications)
>
> A comment with the USB Block - I believe all the processing going into
> the USB FIFO is done within the FX2. Moreover, i don't know why
> you're keeping the byte_count around - it's coming in with the packet
> header.
>
> >Here are the issues still unresolved that I am aware of:
> >
> >- Are the overrun/underrun flag per channel or global? From which fifo
> >should they be generated?
>
> Each channel should be responsibile for returning each individual
> status back up to the host. With that given, I believe the messages
> should be sent up and identified as stating "TX Channel 0" or "RX
> Channel 1" is having over or under runs. That would be helpful,
> correct?
Yes, but I'm not sure we can spare the USB bandwidth to report them
separately. I agree we should track them separately. I was thinking
about piggybacking the reporting into the header of RX packets.
WRT clarity, perhaps we should refer to these various fifo like this:
tx_usb_fifo
tx_cmd_fifo
tx_chan_fifo_N
rx_usb_fifo
rx_reply_fifo
rx_chan_fifo_N
Eric
- Re: [Discuss-gnuradio] USRP packet parsing, (continued)
- Re: [Discuss-gnuradio] USRP packet parsing, Eric Blossom, 2007/03/23
- Re: [Discuss-gnuradio] USRP packet parsing, Thibaud Hottelier, 2007/03/23
- Re: [Discuss-gnuradio] USRP packet parsing, Brian Padalino, 2007/03/23
- Re: [Discuss-gnuradio] USRP packet parsing, Thibaud Hottelier, 2007/03/23
- Re: [Discuss-gnuradio] USRP packet parsing, Eric Blossom, 2007/03/23
- Re: [Discuss-gnuradio] USRP packet parsing, Eric Blossom, 2007/03/23
- Re: [Discuss-gnuradio] USRP packet parsing, Eric Blossom, 2007/03/23
- Re: [Discuss-gnuradio] USRP packet parsing, Thibaud Hottelier, 2007/03/24
- Re: [Discuss-gnuradio] USRP packet parsing, Thibaud Hottelier, 2007/03/24
- Re: [Discuss-gnuradio] USRP packet parsing, Brian Padalino, 2007/03/24
- Re: [Discuss-gnuradio] USRP packet parsing,
Eric Blossom <=
- Re: [Discuss-gnuradio] USRP packet parsing, Thibaud Hottelier, 2007/03/25
- Re: [Discuss-gnuradio] USRP packet parsing, Thibaud Hottelier, 2007/03/26
- Re: [Discuss-gnuradio] USRP packet parsing, Brian Padalino, 2007/03/26
- Re: [Discuss-gnuradio] USRP packet parsing, Thibaud Hottelier, 2007/03/26
- Re: [Discuss-gnuradio] USRP packet parsing, Eric Blossom, 2007/03/26
- Re: [Discuss-gnuradio] USRP packet parsing, Eric Blossom, 2007/03/26
- Re: [Discuss-gnuradio] USRP packet parsing, Eric Blossom, 2007/03/25
- Re: [Discuss-gnuradio] USRP packet parsing, Eric Blossom, 2007/03/25
- Re: [Discuss-gnuradio] USRP packet parsing, Eric Blossom, 2007/03/21
- Re: [Discuss-gnuradio] USRP packet parsing, Eric Blossom, 2007/03/20