USB Communication

Look at http://www.ftdichip.com/products/ics/ft245r.htm

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Single chip USB to parallel FIFO bidirectional data transfer interface.

Entire USB protocol handled on the chip - No USB-specific firmware programming required.

Simple interface to MCU / PLD / FPGA logic with simple 4-wire handshake interface.

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Thanks for your reply.

Does i require Serial EEPROM(93C46)chip or it can be ignored.

Just all the Lines from FT245R is to be connected to Cyclone IV naa.

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Thanks for your reply.

Does i require Serial EEPROM(93C46)chip or it can be ignored.

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Fully integrated 1024 bit EEPROM storing device descriptors and FIFO I/O configuration.

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I can't see any way to connect 93C46 to FT245.

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Just all the Lines from FT245R is to be connected to Cyclone IV naa.

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D0-D7, RD,WR, RXF, TXE, PWREN. Maybe RESET. To Cyclone. Also you will need to programm this chip with FTDI utility.

It's simplest way to communicate with PC.

I think PDIUSBD12 is also similar to FT245R chip..

Since in my place FT chips are not available. I need to use Philips IC.

Just have a look at this link.

http://www.lumit.org/download/document/pdiusbd12-08.pdf

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I think PDIUSBD12 is also similar to FT245R chip..

Since in my place FT chips are not available. I need to use Philips IC.

Just have a look at this link.

http://www.lumit.org/download/document/pdiusbd12-08.pdf

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Looks like you can use this chip.

I have made schematic Pls refer it.

In that SUSPEND, DMRACK, DMREQ, EOT, GL_N pins where should i connect.