Hi, I'm using the prebuild fpg and a build by me fpg, both with the same result. I did try as you mention to see how much can I read with CasperFpga.read_uint increasing the offset and I can read up to 2048 values before the error appear, I think that's ok, as the u_int read 32 bits, and I have 1024 values of 64 bits. I'm correct?
Cheers. El mié, 7 abr 2021 a las 11:24, Jack Hickish (<[email protected]>) escribió: > > > > On Wed, 7 Apr 2021, 2:57 pm Guillermo Gancio, <[email protected]> wrote: >> >> Hi, >> >> I'm using the tutorials from >> https://github.com/casper-astro/tutorials_devel/tree/master/snap/tut_spec >> I just clone them and I got the same result, could be an issue with >> the katcp installation on the snap-raspberry? > > > You're using the prebuilt FPG file? It could be katcp I suppose - if you read > one word at a time, eg with CasperFpga.read_uint using an increasing > word_offset argument, how far can you read? > >> >> I'm also checking the casperfpga installation... >> >> Cheers. >> >> >> >> >> >> El mié, 7 abr 2021 a las 10:15, Jack Hickish (<[email protected]>) >> escribió: >> > >> > Hi Guillermo, >> > >> > If the values are 64 bits in the model, it is suspicious that the reads >> > are 1024*4 Bytes. I notice that in the latest tutorials_devel the reads >> > are 1024*8 bytes >> > (https://github.com/casper-astro/tutorials_devel/blob/2982f9f14bffa065a80d9047ec5cd7ea1ca3ad6c/snap/tut_spec/snap_tut_spec.py#L19) >> > >> > What version of the tutorial are you using -- it's possible that if the >> > version is old something else is wrong. >> > >> > Cheers >> > Jack >> > >> > On Wed, 7 Apr 2021 at 14:09, Guillermo Gancio <[email protected]> wrote: >> >> >> >> Hi Jack, >> >> >> >> What I understand from the tutorial, and correct me if I'm wrong, is: >> >> Size of PFB and FFT, 2^12 i.e Re+Im 4096 channels, that's 2048 >> >> frequency channels after obtaining power values from the complex >> >> values. >> >> Those 2048 channels end up in two registers 'even' and 'odd' of 2^10 >> >> i.e. 1024 values each, each of this values is of 64bits, >> >> So I have to read 1024 * 8 = 8192 bits, from each register (even and odd). >> >> >> >> I compiled the project with those values and I got the same result as >> >> before, (read ok with 128*4 bits, ,fpga.read('even',128*4,0) ) >> >> >> >> Cheers >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> El mar, 6 abr 2021 a las 11:27, Jack Hickish (<[email protected]>) >> >> escribió: >> >> > >> >> > Hi Guillermo, >> >> > >> >> > How many channels is that tutorial supposed to generate? It looks like >> >> > the RAM is smaller than expected by the software. Is it possible that >> >> > each even/odd RAM is supposed to be 512*4 (i.e., 512 words, each >> >> > 32-bits wide) for 1024 channels total? >> >> > >> >> > Cheers >> >> > Jack >> >> > >> >> > On Mon, 5 Apr 2021 at 22:46, Guillermo Gancio <[email protected]> >> >> > wrote: >> >> >> >> >> >> Hi Casperities (?) >> >> >> >> >> >> I'm going thru the tutorial 3 on a snap board, and I have some >> >> >> issue/error while reading the 'odd' and 'even' register, >> >> >> when reading with >> >> >> -> a_0=struct.unpack('>1024l',fpga.read('even',1024*4,0)) >> >> >> >> >> >> I end up with the error >> >> >> -> Request: ?read odd 0 4096 >> >> >> -> Reply: !read fail >> >> >> >> >> >> but if I change the number of bytes to read from 1024*4 to 128*4, I >> >> >> can read it with no problem, ( but the data plot does not seem to be >> >> >> ok ). Also the accumulation value increments ok. >> >> >> >> >> >> Any thoughts? Thanks! >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> -- >> >> >> Instituto Argentino de Radioastronomia >> >> >> [Argentine Institute of Radioastronomy] >> >> >> >> >> >> Guillermo M. Gancio >> >> >> Responsable Área Observatorio >> >> >> [Head of Observatory] >> >> >> >> >> >> Tel: (0054-0221) 482-4903 Int: 106 >> >> >> Mail laboral [email protected] >> >> >> >> >> >> -- >> >> >> You received this message because you are subscribed to the Google >> >> >> Groups "[email protected]" group. >> >> >> To unsubscribe from this group and stop receiving emails from it, send >> >> >> an email to [email protected]. >> >> >> To view this discussion on the web visit >> >> >> https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/CA%2BEePfTjY%2BZzCUWr_ksaGfNRSoVfeF251VRbLP4S5dkFSnddcA%40mail.gmail.com. >> >> > >> >> > -- >> >> > You received this message because you are subscribed to the Google >> >> > Groups "[email protected]" group. >> >> > To unsubscribe from this group and stop receiving emails from it, send >> >> > an email to [email protected]. >> >> > To view this discussion on the web visit >> >> > https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/CAG1GKSk2tv25XinAy%3D0mt_WKY1s61p2qBOYLVsJ-%2B5j1twueQw%40mail.gmail.com. >> >> >> >> >> >> >> >> -- >> >> Instituto Argentino de Radioastronomia >> >> [Argentine Institute of Radioastronomy] >> >> >> >> Guillermo M. Gancio >> >> Responsable Área Observatorio >> >> [Head of Observatory] >> >> >> >> Tel: (0054-0221) 482-4903 Int: 106 >> >> Mail laboral [email protected] >> >> >> >> -- >> >> You received this message because you are subscribed to the Google Groups >> >> "[email protected]" group. >> >> To unsubscribe from this group and stop receiving emails from it, send an >> >> email to [email protected]. >> >> To view this discussion on the web visit >> >> https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/CA%2BEePfQWfV6jG1pMSNeqxbh0z5J0jn%2BBOSLuiY7PWpdcdDDu5Q%40mail.gmail.com. >> > >> > -- >> > You received this message because you are subscribed to the Google Groups >> > "[email protected]" group. >> > To unsubscribe from this group and stop receiving emails from it, send an >> > email to [email protected]. >> > To view this discussion on the web visit >> > https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/CAG1GKSkK_YPV3Pk11skAn49WEqG6pXs75q6QJfiH%3DTMqKpx6yw%40mail.gmail.com. >> >> >> >> -- >> Instituto Argentino de Radioastronomia >> [Argentine Institute of Radioastronomy] >> >> Guillermo M. Gancio >> Responsable Área Observatorio >> [Head of Observatory] >> >> Tel: (0054-0221) 482-4903 Int: 106 >> Mail laboral [email protected] >> >> -- >> You received this message because you are subscribed to the Google Groups >> "[email protected]" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To view this discussion on the web visit >> https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/CA%2BEePfQp5uK4cz9Hm2_JpaLErw0rGy8LqyOYq%2Bi_XysyrP97cA%40mail.gmail.com. > > -- > You received this message because you are subscribed to the Google Groups > "[email protected]" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/CAG1GKSmuJwRMt_NOCz8XBbWrF0uR%2Bi7A7k5wBNq477V6vLqQww%40mail.gmail.com. -- Instituto Argentino de Radioastronomia [Argentine Institute of Radioastronomy] Guillermo M. Gancio Responsable Área Observatorio [Head of Observatory] Tel: (0054-0221) 482-4903 Int: 106 Mail laboral [email protected] -- You received this message because you are subscribed to the Google Groups "[email protected]" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/CA%2BEePfQvr08NmiJdPHEytFBXZZZ08hN52S2du6ga5NNG%3DqJYEA%40mail.gmail.com.
