Thanks for your guidance and support. I will try to make flow graph with the blocks as per examples given by you.
With Best Regards, Maitry Raval, ----- Original Message ----- From: "Cinaed Simson" <cinaed.sim...@gmail.com> To: "Maitry Raval" <maitry.ra...@azistaaerospace.com> Cc: "discuss-gnuradio" <discuss-gnuradio@gnu.org> Sent: Tuesday, January 15, 2019 10:25:52 AM Subject: Re: [Discuss-gnuradio] Regarding correlate access code-tag block Actually, with the Default Header Format file, and the Protocol Formatter, use correlation-access tagged block was a piece of cake. Also, here's an example of bspk using constellations - if you haven't found already. -- Cinaed On 1/14/19 12:39 PM, Cinaed Simson wrote: > As you may have already discovered, I was wrong about unpacking bits for > fec. > > Actually, I have no idea on how I'm getting the results I'm getting > using my modifications of your flowgraph - those depreciated blocks > definitely have strange problems. If I insert the unpack k=8 block as > required for fec the flowgraph doesn't work. > > I ran into a problem testing fec - I modified your sources and I didn't > have enough frame bits. So I set the frame bits to exactly what I need. > > And I can't get a simple correlation access tagged test working - even > with a tag gate. The only way it works is if remove the access code - > which defeats the purpose. > > So I'm go to have to evolve and get the protocol formatter working. > > Also, you don't have to use the rx and tx packet blocks - you can use > the replacements for the PSK mod/demod blocks - the constellation > mod/demod blocks - you probably shouldn't use any depreciated blocks. > > -- Cinaed > > > On 1/10/19 10:01 PM, Maitry Raval wrote: >> Hello, >> >> Ok, One more query, what is the purpose of the block unpack k=1 bit at >> output of PSK demod block, because the meaning of unpack k=1 means byte to >> byte conversion, right? >> >> With Best Regards, >> Maitry Raval, >> >> ----- Original Message ----- >> From: "Cinaed Simson" <cinaed.sim...@gmail.com> >> To: "Maitry Raval" <maitry.ra...@azistaaerospace.com> >> Cc: "discuss-gnuradio" <discuss-gnuradio@gnu.org> >> Sent: Friday, January 11, 2019 2:11:54 AM >> Subject: Re: [Discuss-gnuradio] Regarding correlate access code-tag block >> >> On 1/10/19 2:47 AM, Maitry Raval wrote: >>> Hello, >>> >>> Thanks for your time! >>> >>> It works completely fine, now I understand that we have to give tagged >>> stream at the input of encoder. >> >> Sorry, I didn't mean to imply you needed the stream to tagged stream >> block to make it work. >> >> I just put in at the beginning so I could use the tag debug as a brute >> force search to find out what was blocking the flow. >> >> There are two sequential tag blocks - the correlate correlate access >> code-tag from gnuradio and a block from gr-satellites - I would guess >> that is all you need. >> >> Select "pass thru" on the stream to tagged stream block - it should >> still work. >> >> -- Cinaed >> >> >>> >>> >>> With Best Regards, >>> Maitry Raval, >>> R& D engineer|Azista Industries Pvt Ltd| >>> 079-40605800|www.azistaaerospace.com >>> >>> ----- Original Message ----- >>> From: "Cinaed Simson" <cinaed.sim...@gmail.com> >>> To: "discuss-gnuradio" <discuss-gnuradio@gnu.org> >>> Cc: "Maitry Raval" <maitry.ra...@azistaaerospace.com> >>> Sent: Thursday, January 10, 2019 1:21:34 PM >>> Subject: Re: [Discuss-gnuradio] Regarding correlate access code-tag block >>> >>> Hi Mailry - I was able to get it run. >>> >>> I used the "correlate access" block from gnuradio - my installation of >>> gnuradio didn't like the block in your flowgraph. >>> >>> And then I had to install the python module "construct" in order to get >>> the flowgraph to run. >>> >>> In order to get the flowchart to work - at least in the sense of filling >>> up the output.txt file - I added a "Stream to Tagged Stream" block and >>> define a consist tag to get the Tag Debug block to work. >>> >>> Also, I had to remove the "unpack" block before the PSK modulation, >>> added a "Unpack K=1" block just after the PSK demodulation - and I set >>> "Generate Options" to "No Gui" in the Options block. >>> >>> -- Cinaed >>> >>> >>> >>> On 1/8/19 12:40 AM, Maitry Raval wrote: >>>> Hello, >>>> thanks for your guidance. >>>> I have also attached the grc file, input/output files and python file for >>>> your reference. after adding tag debug, still didn't get any output. I >>>> have also tried this same in ubuntu 18.04 with GNU radio 3.7.11 version. >>>> actually because these psk blocks are deprecated, I have tried it with >>>> dpsk mod, demod block. But as I wanted to do continuous transmission, I >>>> didn't find replaced block for correlate access code-tag block, and the >>>> cusom block from gr-satellites are for extracting syncbits. >>>> I have also tried with simple flow graph by just sream muxing 2 files one >>>> with sync bits and other one is payload file and give that output to >>>> correlate access code-tag block, but that also didn't work. >>>> >>>> It would be grateful, If you guide me on this. I just want to make that >>>> sync bits searching and extracting from payload and receive only payload >>>> at the output. >>>> >>>> >>>> With Best Regards, >>>> Maitry Raval, >>>> >>>> >>>> ----- Original Message ----- >>>> From: "Cinaed Simson" <cinaed.sim...@gmail.com> >>>> To: "discuss-gnuradio" <discuss-gnuradio@gnu.org> >>>> Sent: Tuesday, January 8, 2019 1:47:56 PM >>>> Subject: Re: [Discuss-gnuradio] Regarding correlate access code-tag block >>>> >>>> I broke down and looked at the image. >>>> >>>> Note, PSK Demod, Correlate Access Code - Tag, Packet Encoder, and Packet >>>> Decoder have been depreciated. >>>> >>>> And they're usually depreciated because they have problems - and they >>>> are usually replaced with different blocks which work better and are >>>> typically more general. >>>> >>>> The tutorials are good place to start looking for the replacements. >>>> >>>> -- Cinaed >>>> >>>> >>>> On 1/7/19 11:22 PM, Thomas Lavarenne wrote: >>>>> Oh, it is "File Sink" not "Tagged file sink", didn't see sorry. >>>>> >>>>> Le mar. 8 janv. 2019 à 08:20, Thomas Lavarenne >>>>> <thomas.lavare...@gmail.com <mailto:thomas.lavare...@gmail.com>> a écrit : >>>>> >>>>> >>>>> >>>>> Hi, >>>>> >>>>> But, the issue is that correlate access code-tag block is not >>>>> working and producing tags, so that my output file will come >>>>> blank. as I am certain that at the output of FEC extended >>>>> decoder, both the sync bits and payload is available which I >>>>> have seen by attaching file sink at the output of FEC extended >>>>> decoder. >>>>> >>>>> >>>>> There is a block "Tag Debug" to see if the tag is generated behind >>>>> "correlate access code - tag block". >>>>> >>>>> On the other hand, the documentation of "Tagged File sink" indicate >>>>> that the block need the keyword "burst" (with value: True) to >>>>> trigger the saving of the data. >>>>> >>>>> Best regards, >>>>> >>>>> Thomas >>>>> >>>>> _______________________________________________ >>>>> >>>>> Discuss-gnuradio mailing list >>>>> Discuss-gnuradio@gnu.org <mailto:Discuss-gnuradio@gnu.org> >>>>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >>>>> >>>>> >>>>> _______________________________________________ >>>>> Discuss-gnuradio mailing list >>>>> Discuss-gnuradio@gnu.org >>>>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >>>>> >>>> >>>> >>>> _______________________________________________ >>>> Discuss-gnuradio mailing list >>>> Discuss-gnuradio@gnu.org >>>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >>>> >>>> >>>> _______________________________________________ >>>> Discuss-gnuradio mailing list >>>> Discuss-gnuradio@gnu.org >>>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >>>> >>> . >>> >> > _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio