Velocity Reviews - Computer Hardware Reviews

Velocity Reviews > Newsgroups > Programming > VHDL > NEXYS2 Board from Digilent

Thread Tools

NEXYS2 Board from Digilent

mmishra mmishra is offline
Junior Member
Join Date: Jun 2009
Posts: 3

I have a question regarding the EPP-like interface that connects the on-board USB Controller to the Design in the FPGA (Spartan 3E), on the NEXYS2 board from Digilent.

1) Are the signals such as EppAddrStrb, EppDataStrb, EppWr etc. that go from the USB Controller into the FPGA, synchronous to the System Clock (50 MHz, B8 pin on FPGA) or to the USB Clk (48 MHz, T15 pin on the FPGA) ?

2) What would be an appopriate mechanism to generate a synchronously-deasserted Reset signal for the design inside the FPGA ?

Thanks a lot,

Reply With Quote

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
unpredictable led output on nexys2 board iamonion VHDL 1 02-16-2011 01:45 AM
Digilent USB 2.0 module thgel VHDL 0 07-04-2006 02:56 PM
Digilent USB Module and S3 Board SRAM dutchgoldtony VHDL 0 02-28-2005 01:30 PM
digilent software for boards Neo VHDL 2 12-09-2004 04:08 PM
Digilent Spartan II demo board push button Clyde VHDL 2 02-15-2004 08:18 PM