rtran replacement in verilog

[Khaled Ibrahim]

verilog rtran

How can we replace "rtran" in a Verilog code to describe a simple resistor?? "rtran" is not supported by modelsim, and I didn't find how to model the resistor without it yet!!!

code ex:

module test (a, b);
inout a, b;
rtran (a, b);
endmodule

 

[echo47]

rtran verilog

I don't know much about bidirectional switches in Verilog, but rtran seems to work fine in ModelSim SE 6.2a.

I noticed that you posted your question to the FPGA/CPLD forum. Beware that bidirectional switches such as rtran can't be synthesized in these devices.

rtran doesn't behave like an analog resistor. Do you call it a resistor because of its strength reduction?

 

[Khaled Ibrahim]

verilog code for resistor

yes, you're right. it works fine in modelsim, but actually i'm using it in a eldo-on-top structure and simulating with ADVance MS to interface the verilog to vhdl.. i get a warning that the nets connected to the primitive "rtran" might not function correctly when connected to a vhdl signal! and so i was searching for a replacement!!

I know it's not synthesizable, i just want a simple model..i didn't know where else to post a question about Verilog!

please advice

 

[Khaled Ibrahim]

verilog resistor rtran

hey, no ideas??!!!