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dinyar / uGMTfirmware

Firmware for the CMS uGMT.
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Warnings during synthesis about wrong bRAM #112

Closed dinyar closed 9 years ago

dinyar commented 9 years ago

During synthesis the following warning appears 100 times and is then suppressed (which may mean that other entities are also affected by this!):

WARNING: [Netlist 29-345] The value of SIM_DEVICE on instance 'algo/uGMT/assign_iso/gen_idx_bits/brl_index_bits/phi_idx_bits/convert_coords_to_index_bits[9].phi_idx_bits_mem/phi_idx_bits_mem/ram_reg' of type 'RAMB36E1' is 'VIRTEX6'; it is being changed to match the current FPGA architecture, '7SERIES'. For functional simulation to match hardware behavior, the value of SIM_DEVICE should be changed in the source netlist or constraint file.
WARNING: [Netlist 29-345] The value of SIM_DEVICE on instance 'algo/uGMT/assign_iso/gen_idx_bits/fwd_index_bits/eta_idx_bits/convert_coords_to_index_bits[0].eta_idx_bits_mem/eta_idx_bits_mem/ram_reg' of type 'RAMB36E1' is 'VIRTEX6'; it is being changed to match the current FPGA architecture, '7SERIES'. For functional simulation to match hardware behavior, the value of SIM_DEVICE should be changed in the source netlist or constraint file.

This should be fixed to make the simulation match the firmware exactly.

dinyar commented 9 years ago

With the switch to ipbus slaves this shouldn't be an issue anymore.