OPENCORES.ORG

From: S.PRABHAKARAN.manjuprabhakar at rediffmail.com<S.PRABHAKARAN.manjuprabhakar@r...>
Date: Tue Aug 31 09:42:25 CEST 2004
Subject: [oc] Re:PCI/USB

----- Original Message ----- From: "jamil Isma'il khatib" <jamil.khatib@p...> To: cores@o... khatib@i... Date: Wed Jan 12 09:12:30 GMT 2000 Subject: [oc] Re:PCI/USB > > > Subject: Re: PCI/USB > Date: Mon, 10 Jan 2000 14:05:28 > From: " " <mcjy@m...> > To: khatib@i... > CC: > > > Hi! > Thanks for your email. > For the PCI core project, I would > expect it take six months to get > a basic model. (Depending on how many > people. My estimation is 5 people) > It sounds like a very long time but > organising a project on the internet > is very different from normal project. > All of us have a full time job so > we can only spend around 6 to 10 hours > each week. > > ============================================== > First we do not have to count anyone in the project to work as full > time job or even as part time but as "spare time". > Also we have no time restriction although it is good idea to have a > fixed time schedule. > =============================================== > > I guess we can use one month to develop > the block diagrams and configuration > of the project (as you know, we will need > sometime for people to feedback) and > several generation of the block diagrams > would be developed in this month. Then > we will focus on the detail spec of each > block. We might need to think of some > of the interaction between block in the > early planning stage, but it really depends > on situation. > > Then we will need two month at least to > develop the block and then combine them > and carry out testing in simulation. > At this moment I still wonder how we > can test our design. I believe that the > prototyping board from Altera > > ============================== > Or even we can do a board for us > ================================= > > should be > very useful but if we want to do the > test in real circuit we will also need > to develop device driver. > > ====================================== > I agree the device driver should be an important part of our > project. > ====================================== > > > About the PCI specification : > I think we will work on PCI 2.2 > 64 bit extension is only one of the feature > support in PCI 2.x, but it is ok to develop > 32 bit core for PCI 2.2 (and I think it would > be much easier to start with). > > ====================================================== = > Iagree the first block should be PCI2.2 32bit controller > ====================================================== === > > > PCI specification said a device should > be able to run from 66MHz to 0MHz. > But the hardware performance requirment of > 66MHz system maybe too high (difficult to > prototype), so maybe we need to work on 33MHz > design first. > > PCI-X is 133MHz PCI. I don't know if its > specification is released yet. It is develop > by Compag, and a few other PC companies. > WIth current performance in FPGA, I guess > it is almost impossible for us to prototype. > > Compact PCI is based of PCI 2.x and it support > hot swap. It have extra requirment on the > pins implementation (the pins must be tristate > during the hot swap process). > > ============================== > I have a good link about PCI core at > http://www.tkt.cs.tut.fi/~havu/pci/models.shtml > ==================================== > > > > I haven't look at USB yet. > Write to you again later. > > Have a nice day. > > from > Joe > > > -- > > On 10 Jan 00 09:33:15 Asia/T jamil khatib wrote: > >Hi Joe, > >I am so sorry but my email does not send emails but it receives > I have to > >check it. > >Anyhow I have some suggestions and I am going to send it to all > PCI members, > >news group and opencores mailing list > > > >Please if you want to replay my email is khatib@i... > >Thanks > > > > >===================================================== ======================== > >Hi, > >Before we start the work in the cores design we have to define > few things. > >We should get information about PCI and USB standards and > design tips ( I > >posted few links the last time and I still looking for more) I > hope once we > >proved that we are able to develop a good system may be we can > get some > >support from the PCI or USB groups and I'll try to contact them > so as to get > >the specs or test suits. > >Documentation: text files is the most portable format or latex > can be used to > >write our design documentation instead of the MS stuff that are > not portable. > >The project should be divided into small subprojects for > example we could have > >: the main controller, the optional blocks, the arbiter and > test suite. > >Development platform: we need to make our platform as much as > possible generic > >and platform independent and it will be excellent if we port it > to many > >platforms. > >Project schedule: > ?. defining the spec and the subprojects. > ?. defining the functionality of the main blocks. > > > ?. defining the blocks interfaces. > ?. defining the archs, the states and timing of the blocks > ?. selecting some tools and platforms > ?. design implementation. > ?. verification > ?. testing on real system > >could you please comment on the schedule > >as a first step we have to understand the diff between the > available bus > >standards (e.g. PCI64/66MHz, PCI-X, CompactPCI- USB v1 & > USB v2) and all > >optional and required features of the busses. > > > >Thanks > >Jamil Khatib > >OpenIP Organization http://www.openip.org > >OpenIPCore Project http://www.openip.org/oc > >OpenCores Project http://www.opencores.org > > > > > > >____________________________________________________________ ________ > >Get your own FREE, personal Netscape WebMail account today at > http://webmail.netscape.com. > > > > > --== Sent via Deja.com http://www.deja.com/ ==-- > Share what you know. Learn what you don't. > > > > _______________________________________________________ > The Web's BEST free email....... > Get your FREE account at http://www.pmail.net > > My Pmail address is: > jamil Isma'il khatib <jamil.khatib@p...> >