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zjj
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54 minutes ago

agilex7 ram back-annotation

in my project with agilex7, I want to lock down placement of my optimized results,  so I export the ram assignment.  and I save the back-annotated assignments to a tcl file.

when I re-compile the project with back-annotated tcl,  the fit.plan.rpt shows the following warning:

Warning (171007): Demoted location assignment EC_X34_Y116_N2 on embedded cell "x_blk_wk|x_eth_wrap|x_tx_dp_synczr|cdc.x_afifo|use_ram.x_afifo_ram_sp_wrap|x_ram_2p_2clk|data_rtl_0|auto_generated|altera_syncram_impl1|ram_block2a2" to EAB location M20K_X34_Y116_N0 File: /scratch/home/xinxu/ms2/signoff/quartus/20260525_161838_r11681_fullchip__tdbp_noskid__ram_noinit__mc_pipe_gt1k_m20k__pipe_gt1k_srcin__crc_aqm_pipe__m20k_back/ms_top/tmp-clearbox/ms_top/3185747/altera_syncram_impl_78p81.tdf Line: 97

and the fit.place.rpt shows the following warning:

Warning (15706): Node "x_blk_wk|x_eth_wrap|x_tx_dp_synczr|cdc.x_afifo|use_ram.x_afifo_ram_sp_wrap|x_ram_2p_2clk|data_rtl_0|auto_generated|altera_syncram_impl1|ram_block2a978" is assigned to location or region, but does not exist in design

How to fix the warning? The project rtl code has not been modified.

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