Rurik

For the MMCM error, here are my XSG core config mask parameters:
Hardware platform: ROACH2:sx475t
User IP Clock Source: adc0_clk
User IP Clock Rate: 250 MHz
Sample Period: 1
Synthesis Tool: XST

Yes, I normally use the ska-sa branch, and I have compiled the tutorial 3
spectrometer using other boards (KatADC or iADC) successfully without
needing the Fixed point Toolbox.

Thanks!
Gopal



On Fri, May 9, 2014 at 2:24 PM, Primiani, Rurik
<[email protected]>wrote:

> Hi Gopal,
>
> The MMCM error you pasted above has nothing to do with the ADC5g
> block. It is instead coming from the roach_infrastructure pcore which
> generates the sys_clk signal. What are your XSG core config mask
> parameters set to?
>
> I'm not sure how the sma_wideband repository differs from ska-sa in
> terms of the FFT and fixed point toolbox. The two forks have diverged
> quite a bit and should probably be merged. Perhaps one of the
> divergences is that the fixed point blocks have been replaced in
> ska-sa but I am unaware of such a change. Have you tried building your
> FFT module using the ska-sa fork (without the ADC5g if need be)?
>
> Thanks,
> Rurik
>
>
> On Fri, May 9, 2014 at 2:09 PM, Gopal Narayanan <[email protected]>
> wrote:
> > Hi Casperites,
> >
> > I am trying to use the ASIAA ADC chip in a simulink design. To start with
> > all I have in my design is the chip operating in two channel (A&C mode),
> > with 1:1 demux on ZDOK 0 with a clock rate of 2 GSps. I just terminated
> all
> > outputs of the ADC just for this design. I am using a ROACH2 board in my
> > design. I get the following error when compiling:
> >
> > ERROR:LIT:667 - Block 'MMCM_ADV symbol
> >
> >
> "physical_group_infrastructure_inst/infrastructure_inst/sys_clk_fb_int/infrastructure_inst/infrastructure_inst/MMCM_BASE_sys_clk"'
> > has its target
> >    frequency, FVCO, out of range. Valid FVCO range for speed grade "-1"
> is
> >    600MHz - 1200MHz. The computed FCVO is a function of the input
> frequency
> >    CLKIN1_PERIOD, the division factor DIVCLK_DIVIDE, and the
> CLKFBOUT_MULT_F
> >    attribute (FVCO = 1000*CLKFBOUT_MULT_F/(CLKIN1_PERIOD*DIVCLK_DIVIDE)).
> > The
> >    CLKIN_PERIOD attribute may have been set by ngdbuild based on the user
> >    specified PERIOD constraint. The current calculated FVCO is 400.000000
> > MHz.
> >    Reference the V6 architecture Users Guide or search the Xilinx Answer
> > Records
> >    database for the error code.
> > Errors found during logical drc.
> >
> > I am using Matlab R2012b and XSG 14.5.
> > This is when I am using the SKA mlib-devel branch. Here are the details
> of
> > the mlib git branch:
> >
> > $ git rev-parse --short HEAD
> > b2d72d4
> > $ git remote -v
> > origin https://github.com/ska-sa/mlib_devel.git (fetch)
> > origin https://github.com/ska-sa/mlib_devel.git (push)
> >
> >
> > I tried to use the SMA mlib_devel branch instead. Here are the details on
> > the SMA mlib branch I used:
> >
> > $ git rev-parse --short HEAD
> > d4954fd
> > $ git remote -v
> > origin https://github.com/sma-wideband/mlib_devel.git (fetch)
> > origin https://github.com/sma-wideband/mlib_devel.git (push)
> >
> > With the SMA mlib devel I am able to compile the simple ASIAA chip design
> > mentioned above. However, for more complicated designs (I'm trying to put
> > together a spectrometer with the ASIAA chip) when using FFT modules, the
> SMA
> > mlib branch seems to need the Matlab Fixed-Point toolbox, which I don't
> have
> > a license for.
> >
> > I came across  the following thread in the casper mailing lists about the
> > Fixed Point toolbox:
> >
> > https://www.mail-archive.com/[email protected]/msg04488.html
> >
> > Anybody have some ideas on what may be causing the MMCM_ADV error seen
> above
> > or to circumvent the need for  a FP toolbox license?
> >
> > Thanks!
> >
> > Gopal
> >
> >
> >
> > --
> > Gopal Narayanan                              Ph #: (413) 545 0925
> > Department of Astronomy                  e-mail: [email protected]
> > University of Massachusetts              Amherst MA 01003
> >
>



-- 
Gopal Narayanan                              Ph #: (413) 545 0925
Department of Astronomy                  e-mail: [email protected]
University of Massachusetts              Amherst MA 01003

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