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Altera_Forum's avatar
Altera_Forum
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13 years ago

Creating a bidirectional bus

I want to connect a USB chip (FT245R) to a CPLD. To do that I need a bidirectional 8-bit bus. I thought I could declare the pins to be bidirectional and with a mux, read to or write from the pins as ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

Your code from post# 2 can basically work, if USBBUS is declared as inout and all variables assigned in the always block as reg.

Functional detail related to your application are a different thing, but you get legal Verilog syntax as a starting point.