Hi Luca, Maybe this response is too delayed to be useful, but using the main casper-astro repository (https://github.com/casper-astro/mlib_devel), the xps_adc_mkid_4x should now work with both roach1 and roach2. I'm not sure what repository you are using which contained the xps_adc_mkid_4x_r2 block, but this doesn't exist in the "official" repository.
Cheers Jack On Fri, 24 Feb 2017 at 19:12 <[email protected]> wrote: > Dear all, > > I’m working on the ROACH2 board with the MKID ADC/DAC board. I can use the > DAC properly, I generate a sinewave through the Xilinx DDS Core, and I can > see that sinewave in otput, with the oscilloscope. > I’m using the DAC_MKID_x4. > Now what I have to do is acquire a sinewave with the ADC, compute the FFT > module and phase and store the data, in order to plot the graphs in python. > I’ve completed the design, simulating with the ADC block with the sim i/q > inputs. The results are ok, if I analyze the fft with a simulink scope I > get the sinewave spectrum, only 1 bin of the fft is high, at the frequency > of the sinewave. > > The problem occurs when I try to generate and syntesize the system. > If I use the ADC_MKID with only two parallel outputs, by connecting a > couple of FFT inputs together, I can generate the .bof file, but whenever I > run the code on the FPGA the data from the FFT are wrong (to read data I do > the same procedure of tut3). I guess that it’s probably due to the fact > that I am using 2 parallel outputs with a FFT block that actually requires > 4 parallel inputs. > Actually I tried to generate a sinewave to the I_channel of the dac, > acquire with the adc_mkid with 2 outputs and put on the Q_channel of the > dac. In that way I can see the sinwave ( with a bit of distortion) on the > oscilloscope. > If I use the ADC_MKID_x4, within the sub-menu XPS_CASPER LIBRARY->ADC I > get some errors saying that cannot find the MPD core for the interface. > If I just click on XPS_CASPER_LIB within the simulink library browser, > instead of the sub-menu XSP_CASPER -> ADC, I have two blocks ADC_MKID_x4_r2 > and DAC_MKID_x4_r2, but when I put it in the model, the label say r1 > instead of r2, and there is the sign “Bad Link”. > Actually if I check within the > opt/MUSIC/mlib_devel/xps_base/XPS_ROACH2_BASE/pcores/ directory I only have > the version 2 “adc_mkid_4x_interface_v2_00_a”, while within the > opt/MUSIC/mlib_devel/xps_library/ I have both the versions > “@xps_adc_mkid_4x” and “@xps_adc_mkid_4x_r2”. > > I attach some pictures that maybe can explain better. > I really hope that someone can help me to fix that issue, it’s taking too > much time. > > Thank you some much. > If needed I can also attach the model file. > > Sincerely, > > Luca Finazzi, > Visiting student. > > > > > > Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for > Windows 10 > > > > -- > 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 post to this group, send email to [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 post to this group, send email to [email protected].
