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
