Unable to use Avalon-MM master verification BFM in Questa sim

Hello.

The problem is that the QuestaSim optimizer flashes the delta-events. If you are using multilanguage QuestaSim, the solution is to make little tunning in the "altera_avalon_mm_master_bfm_vhdl_wrapper.sv" file:

1) Change timescale resolution `timescale 1ps / 1ps

2) In line 519 add "#1", like:

always @(mm_master.signal_all_transactions_complete) begin
events[MM_MSTR_EVENT_ALL_TRANSACTIONS_COMPLETE] = 1;
#1 events[MM_MSTR_EVENT_ALL_TRANSACTIONS_COMPLETE] <= 0;
end

It will solve the problem. You can save the custom file and each Platform Design reconfiguration, just replace the "altera_avalon_mm_master_bfm_vhdl_wrapper.sv" file with a patched one.

Good Luck

Igor