Nov 25, 2008 #1 C cafukarfoo Full Member level 3 Joined Jul 25, 2007 Messages 170 Helped 8 Reputation 16 Reaction score 5 Trophy points 1,298 Activity points 2,510 Hi Sir/Madam, Can we put delay value in the RTL that we want to put inside FPGA for testing? Is the FPGA synthesis going to honors this delay value? Thanks in advance for your help. always @(posedge clk) val_d <= #1 va;
Hi Sir/Madam, Can we put delay value in the RTL that we want to put inside FPGA for testing? Is the FPGA synthesis going to honors this delay value? Thanks in advance for your help. always @(posedge clk) val_d <= #1 va;
Nov 25, 2008 #2 aomeen Member level 4 Joined Dec 8, 2005 Messages 78 Helped 24 Reputation 48 Reaction score 7 Trophy points 1,288 Location Egypt Activity points 1,836 Do you mean like use "wait for 100ns" and then the FPGA translates it into real time delay !!! Well I'm not sure, but I dought it ... cafukarfoo said: Hi Sir/Madam, Can we put delay value in the RTL that we want to put inside FPGA for testing? Is the FPGA synthesis going to honors this delay value? Thanks in advance for your help. always @(posedge clk) val_d <= #1 va; Click to expand...
Do you mean like use "wait for 100ns" and then the FPGA translates it into real time delay !!! Well I'm not sure, but I dought it ... cafukarfoo said: Hi Sir/Madam, Can we put delay value in the RTL that we want to put inside FPGA for testing? Is the FPGA synthesis going to honors this delay value? Thanks in advance for your help. always @(posedge clk) val_d <= #1 va; Click to expand...
Nov 25, 2008 #3 R ring0 Member level 3 Joined Nov 10, 2008 Messages 60 Helped 5 Reputation 10 Reaction score 0 Trophy points 1,286 Location Moscow, Russia Activity points 1,606 No, the delay construction is not synthesizeable.
Nov 25, 2008 #4 M midovambir Newbie level 6 Joined Aug 26, 2006 Messages 12 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,336 it is possible to add delay; but i don't recommend you it has no effect; it will affect only in simulation not in the hardware implementation
it is possible to add delay; but i don't recommend you it has no effect; it will affect only in simulation not in the hardware implementation
Nov 25, 2008 #5 M m_kartik Newbie level 6 Joined Feb 7, 2006 Messages 11 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,358 wait statements are not supported by the synthesis tool. I think, depends on the tool, it will report an error.
wait statements are not supported by the synthesis tool. I think, depends on the tool, it will report an error.