Thanks for the response Using netcat is a good idea, it should be better than using the kcpcmd because this command connect and disconnect to the port in every call. I tried to use the cross compilation, but running it in the ppc threw me a segmentation fault or a missing standard libraries like glibc if my memory is good... So using gzip seems to be a quick and useful option Cheers!
El jue., 21 nov. 2019 a las 4:29, Marc (<[email protected]>) escribió: > > Hi there > > If you remain keen to read raw values from within the ppc you could use > netcat (or your own socket) to localhost, port 7147 and issue ?read > requests directly. Note that there are differences between read and > wordread. > > You could also pipe the text output of your ash script to gzip and > compress it - that might save you space too... > > The reads from /proc/????/hw/ioreg were a thing on older software > revisions and probably not available on the roach2 > > regards > > marc > > > On Wed, Nov 20, 2019 at 1:48 PM Sebastian Antonio Jorquera Tapia < > [email protected]> wrote: > >> Hello, >> In the last days I start to thinking in reading the BRAMs on the fpga via >> the PPC directly and not give the request via LAN reducing the reading >> latency (I suppose) >> Messing around inside the ppc, I found the command kcpcmd which enables >> me to send katcp requests so thats nice. I made a little ash script for >> continuously reading one register and saving it in the tmpfs mounted in >> /var. >> >> The main problem I found is that the kcpcmd gives me the reading in a >> human readable way (even when I set the -x option which gives the response >> in hexadecimal) so when I save it in a doc use much more space than binary >> data.. There is other way to read the brams of the fpga beside the kcpcmd? >> Searching I found that in the netfpga, which also use a borph os, reads >> the register from /proc/8033/hw/ioreg there is something similar to this in >> the ppc? >> >> Other way to fix my problem was to make a little script to translate the >> values form ascii(?) to binary after the reading with kcpcmd. My plan is >> using C and cross-compile for the powerpc in gcc.. Should this work in the >> borph environment? >> >> >> >> -- >> 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/5f030be7-3ffa-4946-a3d7-b7f2b97d64b3%40lists.berkeley.edu >> <https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/5f030be7-3ffa-4946-a3d7-b7f2b97d64b3%40lists.berkeley.edu?utm_medium=email&utm_source=footer> >> . >> > > > -- > https://katfs.kat.ac.za/~marc/ > > -- > 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/CAGrhWaS6MLm%3DQBjoj%2BGU6VhoC4WmX%2BTww6k14wvYfv1KjC%3D13A%40mail.gmail.com > <https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/CAGrhWaS6MLm%3DQBjoj%2BGU6VhoC4WmX%2BTww6k14wvYfv1KjC%3D13A%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > -- 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/CAASoV%3DOAg%3Do6_02WLAoeHVYTDMSwMuvECNKdHia_urr3NCak0g%40mail.gmail.com.
