Forum Discussion
Altera_Forum
Honored Contributor
18 years agoBidirectional IOs in FPGA
Hi, In my project, I have 2 bidirectional IO buses of 32-bit width. I need to connect both of them together for 2-way data transfer. I've tried two options in VHDL: bus1 <= bus2 This...
Altera_Forum
Honored Contributor
18 years agowell, the BUS1 and BUS2 are bidir IO pins. There is no other logic in between. I just need to connect them both to effect 2-way data transfer without much delay (~10ns). The WE# is also an input pin. Basically I'm trying to interface a DSP processor's SDRAM controller with a Micron SDRAM. The bidir IO are the data buses. While the other pins are the control pins. The problem lies with the data bus. I need to connect the data bus of the DSP to the SDRAM data via the FPGA. So the FPGA will have two sets of bidir IO pins - One for the DSP side and other for the SDRAM side.