Ah, interesting, didn't thought of that. I'll try to figure it out a bit more, and if I get nowhere I'll use your approach.
Thanks! Franco ---- Jack Hickish wrote ---- >Hi Franco, > > >I've had this error before. To be honest, since ISE compiled my design fine >and I could see no issues in hardware when comparing digital noise sent >through multiple FFT channels, I just ignored the problem. That is, I used >planahead to generate constraints/pblocks, but compiled these with casper_xps >using the UCF yellow block. > >If you get to the bottom of this I'd be interested in what you learn. > > >Cheers > >Jack > > >On Thu, 11 May 2017 at 12:52 Franco <[email protected]> wrote: > >Dear Casperites, > >I, once again, need your wisdom. I'm trying to do floorplanning on a >model, but whenever I create a new project with Xilinx Planahead the >model fails to load. Just to be sure I'm not doing something wrong I'll >detail my workflow: > >1. I compile a Simulink model using Matlab/casper_xps. The model >compiles successfully. > >2. I open PlanAhead with: "source setting64.sh && sudo planAhead" in the >Xilinx installation folder. > >3. "Create a new project" -> "Import ISE & Place and Route Results" > >4. In add netlist source list: "Add File" -> >"<myProject>/XPS_ROACH2_base/implementation/system.ngc", "Import >Directories" -> "<myProject>/XPS_ROACH2_base/implementation/" > >5. In add constraints: "Add File" -> >"<myProject>/XPS_ROACH2_base/implementation/system.ucf" > >6. In default part I choose: "xc6vsx475tff1759-1" > >7. In import ISE implementation results: "Placement file" -> >"<myProject>/XPS_ROACH2_base/implementation/system_map.ncd", "Import >timing" -> "<myProject>/XPS_ROACH2_base/implementation/system.twx" > >8. After doing this, the project starts loading the files and I get this >error: > >ERROR: [Designutils 20-662] Internal error: 'Cannot place carry chain >instance >kestfilt_4096ch_600mhz1_XSG_core_config/kestfilt_4096ch_600mhz1_XSG_core_config/kestfilt_4096ch_600mhz1_x0/fft_wideband_real0_3bb28f4f1a/fft_direct_2a29a9ae17/butterfly2_0_74870afb03/bus_convert_a7eae3d1b2/conv2_4beea44e63/convert_8b81baa718/adder/comp9.core_instance9/blk00000001/blk0000002c >at (SLICE_X107Y155): Could not legally place instance >kestfilt_4096ch_600mhz1_XSG_core_config/kestfilt_4096ch_600mhz1_XSG_core_config/kestfilt_4096ch_600mhz1_x0/fft_wideband_real0_3bb28f4f1a/fft_direct_2a29a9ae17/butterfly2_0_74870afb03/bus_convert_a7eae3d1b2/conv2_4beea44e63/convert_8b81baa718/adder/comp9.core_instance9/blk00000001/blk0000002c >at SLICE_X107Y155 since it belongs to a shape containing instance >kestfilt_4096ch_600mhz1_XSG_core_config/kestfilt_4096ch_600mhz1_XSG_core_config/kestfilt_4096ch_600mhz1_x0/fft_wideband_real0_3bb28f4f1a/fft_direct_2a29a9ae17/butterfly2_0_74870afb03/bus_convert_a7eae3d1b2/conv2_4beea44e63/convert_8b81baa718/adder/comp9.core_instance9/blk00000001/blk0000001b. >The shape requires relative placement between >kestfilt_4096ch_600mhz1_XSG_core_config/kestfilt_4096ch_600mhz1_XSG_core_config/kestfilt_4096ch_600mhz1_x0/fft_wideband_real0_3bb28f4f1a/fft_direct_2a29a9ae17/butterfly2_0_74870afb03/bus_convert_a7eae3d1b2/conv2_4beea44e63/convert_8b81baa718/adder/comp9.core_instance9/blk00000001/blk0000002c >and >kestfilt_4096ch_600mhz1_XSG_core_config/kestfilt_4096ch_600mhz1_XSG_core_config/kestfilt_4096ch_600mhz1_x0/fft_wideband_real0_3bb28f4f1a/fft_direct_2a29a9ae17/butterfly2_0_74870afb03/bus_convert_a7eae3d1b2/conv2_4beea44e63/convert_8b81baa718/adder/comp9.core_instance9/blk00000001/blk0000001b >that cannnot be honored because it would result in an invalid location >for >kestfilt_4096ch_600mhz1_XSG_core_config/kestfilt_4096ch_600mhz1_XSG_core_config/kestfilt_4096ch_600mhz1_x0/fft_wideband_real0_3bb28f4f1a/fft_direct_2a29a9ae17/butterfly2_0_74870afb03/bus_convert_a7eae3d1b2/conv2_4beea44e63/convert_8b81baa718/adder/comp9.core_instance9/blk00000001/blk0000001b.' > >And four other similar errors. > >I'm using Matlab 2013a, Xilinx ISE Design Suite 14.7, and the latest >version of casper-astro/mlib_devel from github in Debian Stretch. I'm >really confused by this error, it seems to be a placement error, but it >doesn't make sense because I could successfully compiled with >casper_xps. Googling the problem I only found this link: >https://forums.xilinx.com/t5/Synthesis/Planahead-Cannot-place-carry-chain-instance/td-p/742833 >which didn't helped me too much. > >Has anyone encountered this same problem? > >Franco > >-- >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].
