Hi, I am looking for an USB transceiver chip that can be interfaced to an FPGA WITHOUT microcontroller. USB 2.0 would be ideal, 1.1 is also ok. Any suggestions? Thanks, --- jakab
USB transceiver for FPGA
Started by ●September 15, 2003
Reply by ●September 15, 20032003-09-15
jakab tanko <jtanko@ics-ltd.com> wrote in message news:bk4g4g$j0f$1@news.storm.ca...> Hi, > > I am looking for an USB transceiver chip that can be interfaced to an > FPGA WITHOUT microcontroller. USB 2.0 would be ideal, 1.1 is also ok. > Any suggestions?The FTDI 245BM sounds like what you want (although it's only 1.1). See.. http://www.ftdichip.com/ ..for details. I've a board based on this I built for my own use (see under downloads on my web site). I've a couple sitting here that someone said they wanted but money hasn't been forthcoming. Yours for �30 each if you want one/both for prototyping. See my downloads page for details of an example project showing how to drive it, it's relatively easy. Nial Stewart ------------------------------------------------ Nial Stewart Developments Ltd FPGA and High Speed Digital Design www.nialstewartdevelopments.co.uk
Reply by ●September 15, 20032003-09-15
I'm working on a project with USB to a XILINX FPGA. The interface chip I'm going with is Phillips ISP-1501 http://www.semiconductors.philips.com/cgi-bin/pldb/pip/isp1501 Good Luck, Colin "jakab tanko" <jtanko@ics-ltd.com> wrote in message news:bk4g4g$j0f$1@news.storm.ca...> Hi, > > I am looking for an USB transceiver chip that can be interfaced to an > FPGA WITHOUT microcontroller. USB 2.0 would be ideal, 1.1 is also ok. > Any suggestions? > > Thanks, > --- > jakab > >
Reply by ●September 15, 20032003-09-15
I have looked at that one some time ago but there was a message on the Philips website that the chip is going obsolete and that scared me away... I tried to confirm with the Philips rep. here in Ottawa,Canada but all I got to talk to was an answering machine!. Did you manage to get an eval board for it? --- jakab "Colin Jackson" <jacksoncolin@fake_yahoo.com> wrote in message news:1sOdnZlEhZ77j_uiU-KYuA@comcast.com...> I'm working on a project with USB to a XILINX FPGA. > The interface chip I'm going with is Phillips ISP-1501 > http://www.semiconductors.philips.com/cgi-bin/pldb/pip/isp1501 > > Good Luck, > Colin > > "jakab tanko" <jtanko@ics-ltd.com> wrote in message > news:bk4g4g$j0f$1@news.storm.ca... > > Hi, > > > > I am looking for an USB transceiver chip that can be interfaced to an > > FPGA WITHOUT microcontroller. USB 2.0 would be ideal, 1.1 is also ok. > > Any suggestions? > > > > Thanks, > > --- > > jakab > > > > > >
Reply by ●September 15, 20032003-09-15
Thanks for the suggestion, it looks like they also have USB 2.0 chip, the board you have looks interesting too. I will search a bit more before deciding. --- jakab "Nial Stewart" <nial@spamno.nialstewart.co.uk> wrote in message news:3f65cb6d$0$10961$fa0fcedb@lovejoy.zen.co.uk...> jakab tanko <jtanko@ics-ltd.com> wrote in message > news:bk4g4g$j0f$1@news.storm.ca... > > Hi, > > > > I am looking for an USB transceiver chip that can be interfaced to an > > FPGA WITHOUT microcontroller. USB 2.0 would be ideal, 1.1 is also ok. > > Any suggestions? > > The FTDI 245BM sounds like what you want (although it's only 1.1). > > See.. > > http://www.ftdichip.com/ > > ..for details. > > I've a board based on this I built for my own use (see under > downloads on my web site). I've a couple sitting here that > someone said they wanted but money hasn't been forthcoming. > > Yours for �30 each if you want one/both for prototyping. > > See my downloads page for details of an example project showing > how to drive it, it's relatively easy. > > > Nial Stewart > > ------------------------------------------------ > Nial Stewart Developments Ltd > FPGA and High Speed Digital Design > www.nialstewartdevelopments.co.uk > > >
Reply by ●September 15, 20032003-09-15
On Mon, 15 Sep 2003 17:07:22 -0400, "jakab tanko" <jtanko@ics-ltd.com> wrote:>Thanks for the suggestion, it looks like they also have USB 2.0 chip, >the board you have looks interesting too. I will search a bit more before >deciding.Their chip will not run USB2.0 high speed, only full speed. ( I have been able to get 1 MB/sec max on a real board ) Otherwise it is great, I have used it on several boards. They are going to have a high speed chip but it is at least a year off as it is just in planning , this is a major bummer for my projects.>--- >jakab >"Nial Stewart" <nial@spamno.nialstewart.co.uk> wrote in message >news:3f65cb6d$0$10961$fa0fcedb@lovejoy.zen.co.uk... >> jakab tanko <jtanko@ics-ltd.com> wrote in message >> news:bk4g4g$j0f$1@news.storm.ca... >> > Hi, >> > >> > I am looking for an USB transceiver chip that can be interfaced to an >> > FPGA WITHOUT microcontroller. USB 2.0 would be ideal, 1.1 is also ok. >> > Any suggestions? >> >> The FTDI 245BM sounds like what you want (although it's only 1.1). >> >> See.. >> >> http://www.ftdichip.com/ >> >> ..for details. >> >> I've a board based on this I built for my own use (see under >> downloads on my web site). I've a couple sitting here that >> someone said they wanted but money hasn't been forthcoming. >> >> Yours for �30 each if you want one/both for prototyping. >> >> See my downloads page for details of an example project showing >> how to drive it, it's relatively easy. >> >> >> Nial Stewart >> >> ------------------------------------------------ >> Nial Stewart Developments Ltd >> FPGA and High Speed Digital Design >> www.nialstewartdevelopments.co.uk >> >> >> > >
Reply by ●September 15, 20032003-09-15
Have you looked at the USB 1.1 and 2.0 IP Cores at www.opencores.com? I looked very closely at the 1.1 version and found it took only 6 pins and $1.75 transceiver chip. Ken "jakab tanko" <jtanko@ics-ltd.com> wrote in message news:bk4g4g$j0f$1@news.storm.ca...> Hi, > > I am looking for an USB transceiver chip that can be interfaced to an > FPGA WITHOUT microcontroller. USB 2.0 would be ideal, 1.1 is also ok. > Any suggestions? > > Thanks, > --- > jakab > >
Reply by ●September 16, 20032003-09-16
"Kenneth Land" <kland1@neuralog1.com> wrote in message news:<vmcl99c2s5jgc0@news.supernews.com>...> Have you looked at the USB 1.1 and 2.0 IP Cores at www.opencores.com? > > I looked very closely at the 1.1 version and found it took only 6 pins and > $1.75 transceiver chip. > > Kenthere is a japanese design (VHDL, and Visual basic host example) that uses no tranceiver at all, ie USB DM,DP directly to FPGa antti
Reply by ●September 16, 20032003-09-16
Is it free? :) That is very interesting and that is what I went looking for. I imagined the logic in the FPGA would wiggle D+ and D- appropriately. I understand that the 480Mbps of 2.0 might be tough in a garden variety FPGA, but 1.1 might be doable. I wonder if the special LVDS pins of a Cyclone or Stratix would do 2.0? Of course going to Stratix would negate any BOM savings. Ken "Antti Lukats" <antti@case2000.com> wrote in message news:80a3aea5.0309152348.5ffd5049@posting.google.com...> "Kenneth Land" <kland1@neuralog1.com> wrote in messagenews:<vmcl99c2s5jgc0@news.supernews.com>...> > Have you looked at the USB 1.1 and 2.0 IP Cores at www.opencores.com? > > > > I looked very closely at the 1.1 version and found it took only 6 pinsand> > $1.75 transceiver chip. > > > > Ken > > there is a japanese design (VHDL, and Visual basic host example) > that uses no tranceiver at all, ie USB DM,DP directly to FPGa > > antti
Reply by ●September 16, 20032003-09-16
480 MHz LVDS IO is not out of question on Xilinx FPGAs (Altera ? don't know) in terms of frequency; what I question is the voltage/current levels to/from the USB, have to dig into the USB spec to figure this one out. Any pointers to this japanese design or its documentation? --- jakab "Ken Land" <kland1@neuralog1.com> wrote in message news:vme5iv66sv911@news.supernews.com...> Is it free? :) > > That is very interesting and that is what I went looking for. I imagined > the logic in the FPGA would wiggle D+ and D- appropriately. I understand > that the 480Mbps of 2.0 might be tough in a garden variety FPGA, but 1.1 > might be doable. > > I wonder if the special LVDS pins of a Cyclone or Stratix would do 2.0?Of> course going to Stratix would negate any BOM savings. > > Ken > > "Antti Lukats" <antti@case2000.com> wrote in message > news:80a3aea5.0309152348.5ffd5049@posting.google.com... > > "Kenneth Land" <kland1@neuralog1.com> wrote in message > news:<vmcl99c2s5jgc0@news.supernews.com>... > > > Have you looked at the USB 1.1 and 2.0 IP Cores at www.opencores.com? > > > > > > I looked very closely at the 1.1 version and found it took only 6 pins > and > > > $1.75 transceiver chip. > > > > > > Ken > > > > there is a japanese design (VHDL, and Visual basic host example) > > that uses no tranceiver at all, ie USB DM,DP directly to FPGa > > > > antti > >
