How to use bidirectional I/O in CLIP of LabVIEW FPGA?

[asupawat]

How to use or define bidirectional I/O for CLIP with LabVIEW FPGA? I want to use 1-wire communication inside CLIP core, the function will implement read and write that I/O inside the CLIP.

The CLIP XML Generator (CXG) 1.1.0 does not support.

Thanks,

Supawat

[Robbob]

Supawat,

LabVIEW does not have a native bidirectional(inout) datatype. You will have to workaround this by introducing a tristate buffer in CLIP with three CLIP I/O items, two from LabVIEW to CLIP (PinOutputData and PinOutputEnable) and one from CLIP to LabVIEW (PinInputData)

[asupawat]

Rob,

Thanks, I will try. By the way, the attached files from xilinx of the picoblaze IFF function implement in Spartan3. Is posible to use in LabVIEW FPGA? IB pin is the bidirectional communication to 1-wire DS2432.

Supawat.

[asupawat · Accepted solution]

Working after separate IB pin(bidirectional pin) to input and output. Thanks.