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On 25 Nov 2006 15:05:26 -0800, "PeteS" <PeterSmith1954@googlemail.com>
wrote:
>Jim Thompson wrote:
>
[snip]
>>
>> You have it wrong, it's...
>>
>> Those that can, do.
>>
>> Those that can't, flip burgers.
>>
>> Those that can't flip burgers, work check-out at Fry's Electronics.
>>
>> Those that can't work check-out at Fry's Electronics, teach.
>>
>> Those that can't teach, become managers.
>>
>> Those that can't manage, they hang out on S.E.D hiding behind some
>> hideous nom de plume.
>>
>> ...Jim Thompson
>
>Amusing
>
>I was actually being serious for a moment. Teachers (as opposed to
>lecturers) must have a fire inside if they are actually _teachers_. The
>best teachers _are_designers, for that reason. I was not always the
>most popular, but I was always the most respected.
>
>I happen to respect your abilities (not that I always say so) because I
>know what design takes; indeed I am a designer, of boards not chips. Do
>you know what it takes to _really_ teach? (that's not a rhetorical
>question).
>
>Cheers
>
>PeteS
I taught at a school for technicians from around 1964 until 1974.
And I've given numerous lectures and seminars (I wrote AND taught all
the ICE analog stuff years ago).
I even substituted for Barry Gilbert, when he took ill in 1986 (?,
yep, checked my old passport)), teaching a week-long seminar at the
Royal Melbourne Institute of Technology, teaching bipolar chip design
alongside Willy Sansen, who taught the CMOS stuff.
I offered to teach for free at Scottsdale Community College, but was
turned down... no "teacher's certificate" :-(
And I agree with you, teachers have the "fire". I am where I am now
because of teachers with "fire"... I particularly still fondly
remember Evelyn Truchovesky, my 8th grade Algebra teacher ;-)
...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice:(480)460-2350 | |
| E-mail Address at Website Fax:(480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.
Article: 112601On Sat, 25 Nov 2006 20:40:11 GMT, "Homer J Simpson" <nobody@nowhere.com> wrote: > >"John Fields" <jfields@austininstruments.com> wrote in message >news:og9hm2pru2v1hhesp81p3albrcqg6sghvc@4ax.com... > >> I can, but so far I haven't seen a lot from you design-wise that >> says you can too. Got anything you'd like to share? And these are >> hardware groups, don't forget. > >You want a description of the HVAC systems I designed for multi story >buildings? They ran over 100 pages for the maintenance manual and 40 full >sized drawings IIRC. --- Big fucking deal, eh? It's not like you figured out the transfer functions, all you did was work out how many watts would be sent to where, when, if even that. -- JFArticle: 112602
"John Fields" <jfields@austininstruments.com> wrote in message news:bplhm217380fape550i434f1qlnblrgk8e@4ax.com... >>You want a description of the HVAC systems I designed for multi story >>buildings? They ran over 100 pages for the maintenance manual and 40 full >>sized drawings IIRC. > Big fucking deal, eh? > > It's not like you figured out the transfer functions, all you did > was work out how many watts would be sent to where, when, if even > that. You lose.Article: 112603
I think split transaction is also supported by non-pipelined bus. But
the order is maintained in this case.
bir
sai wrote:
> Hi,
>
> Another variety of pipelined buses, is split bus, where the responses
> can come in out-of-order fashion. Request and Responses are associated
> with their identification numbers.
>
> the transactions can be as follows
>
> req1, req2, req3,req4,........
> ........req3,req1,req4,req2
>
> 1. When the response times are different for different devices, this
> bus is useful.
> 2. When there is definite advantage in re-ordering requests, it is
> useful. for example request scheduling in SDRAMs.
>
> -Sai
From dave@comteck.com Sun Nov 26 02:28:06 2006
Path: newssvr21.news.prodigy.net!newsdbm04.news.prodigy.com!newsdst01.news.prodigy.net!prodigy.com!newscon04.news.prodigy.net!prodigy.net!newsfeed.telusplanet.net!newsfeed.telus.net!uns-out.usenetserver.com!news.usenetserver.com!pc03.usenetserver.com!COMTECK.COM-a2kHrUvQQWlmc!not-for-mail
From: Dave <dave@comteck.com>
Subject: Xilinx WebPACK 8.2.03i + Linux Problem
Date: Sun, 26 Nov 2006 05:28:06 -0500
User-Agent: Pan/0.14.2 (This is not a psychotic episode. It's a cleansing moment of clarity.)
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Newsgroups: comp.arch.fpga
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I downloaded the WebPACK and installed it on a SuSE 10.1 system (I know it
isn't technically supported on this) in preparation for my receipt of a
Spartan-3E Starter Kit. Everything seemed to go well on the installation.
However, when running the tutorial (a simple counter), the behavioral
simulation returns the following:
Running Fuse ...
Parsing "counter_tbw_beh.prj": 0.01
Building counter_tbw_isim_beh.exe
ERROR:Simulator:222 - Generated C++ compilation was unsuccessful
I've looked at the Xilinx Answers Database #23037 and haven't been
able to identify any obvious problem in the code. This does not give me a
good feeling for success with the Starter Kit.
Has anyone else running Linux been able to complete this tutorial out of
the box? Anyone running Linux run into this problem? I have tried it on
a company laptop running XP with no problems, but that is not my desired
longterm solution.
Thanks,
~Dave~
Article: 112604On Sat, 25 Nov 2006 20:40:11 GMT, "Homer J Simpson" <nobody@nowhere.com> wrote: > >"John Fields" <jfields@austininstruments.com> wrote in message >news:dm9hm2d054g47sqf074b6vgm012g1sp81k@4ax.com... > >>>They're all straight - unlike you. > >> Ho-hum... Yes, Homer, they're straight. What does that say about >> you? > >Try to follow along. Straight women prefer straight men. That's what it says >about me. > >And you? Geez, Homer, it went right over your head, it seems. Or you're trying to dodge, more likely. What I said was that women liked you (actually, "thought you were pretty" I think was the phrase) because they considered you to be one of them. Kind of like a "Will and Grace" arrangement, get it? -- JFArticle: 112605
There is a hugh variation between companies shipping things from US. On similar services(FEDEX, UPS DHL) we see shipping charged between zero and =A350 on what are fairly lightweight (1-3Kg) component shipments. There is definately an element of profit from some vendors that we use given the discount rates they are likely to have. We ourselves charge =A320 for shipment of a 0.5Kg, lowish value board, in a box to the US but that charge only just covers carriage and packing material costs. Higher value shipments do add to the FEDEX charges. I wil say if the item is heavy then FEDEX can get expensive for say the 2-5Kg+ area and Altera may be simply charging real costs. John Adair Enterpoint Ltd. jacko wrote: > hi > > Ouch, the fedex costs, must be a gold plated envelope from altera. But > having said that I should have a MAX II development kit soon to do > http://indi.microfpga.com development. > > Should be more informative on the order page of the shipping costs. >=20 > CheersArticle: 112606
"Rob Dekker" <rob@verific.com> writes: > This (the synthesis pragma's) is a very, very bad idea. It depends on your synthesis tool. Some older tools (I think it might have been older versions of DC) would give an error when it observed x's in the code. If all your target synthesis tool interpretate x's as don't care then it's fine to use it. > Synthesis tools will not see the x assignment, so they will have to > hold the value of 'signal' under the default condition. There are pragmas to like "full_case" and "parallel_case" to control the logic generation of case statements for many synthesis tools. Petter -- A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing on usenet and in e-mail?Article: 112607
sharp@cadence.com writes: > The ?: operator does that already. In fact, it is significantly That's true. > This cannot be generalized to if-statements, because you can do > arbitrarily complex things in an if-statement, not just assign to > variables. How do you maybe-display something? How do you maybe-call I did not mean to execute all statements in both branches. The behavior would be the same as it is today, except that it would propagate x's for assigned variables in both branches. Petter -- A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing on usenet and in e-mail?Article: 112608
On Sun, 26 Nov 2006 00:33:26 GMT, "Homer J Simpson" <nobody@nowhere.com> wrote: > >"John Fields" <jfields@austininstruments.com> wrote in message >news:bplhm217380fape550i434f1qlnblrgk8e@4ax.com... > >>>You want a description of the HVAC systems I designed for multi story >>>buildings? They ran over 100 pages for the maintenance manual and 40 full >>>sized drawings IIRC. > >> Big fucking deal, eh? >> >> It's not like you figured out the transfer functions, all you did >> was work out how many watts would be sent to where, when, if even >> that. > >You lose. --- Yeah, sure... -- JFArticle: 112609
Late at night, by candle light, "Homer J Simpson" <nobody@nowhere.com> penned this immortal opus: > >"John Fields" <jfields@austininstruments.com> wrote in message >news:icjgm25adv16uhp51ahftmbqpl824dnafh@4ax.com... > >> Wrong again. Mine were all voluntary students, but the Army paid >> the tab. >> >> Actually, I quit teaching long ago since I found out that "Them that >> can, do. Them that can't, teach." > >Which is far from true. Some of us do it all. > > Would you two get a room already? - YD. -- Remove HAT if replying by mail.Article: 112610
this is really minor bug, but still I wasted some good 6 hours to understand that its really a bug, and that nothing was wrong with my project. THE BUG: if processor addresses have MSB set (eg address>= 0x80000000) then those peripherals do not show in the generated address map in the system datasheet! simple as that. xdsgen does report in log files proper base addresses but in the html report the peripherals above 0x80000000 are simply missing from address map table. I generated different systems, and edited the MHS and MSS files to find out whats wrong, until I found that the error is really a signed-unsigned programmers bug made by Xilinx _all_ Xilinx programmers should learn how to use int vs unsigned int in C programs! hopefully those programmer have nothing todo with Xilinx P&R tools - if similar bugs are there too then who knows where and what else goes wrong. AnttiArticle: 112611
"John Fields" <jfields@austininstruments.com> wrote in message news:tltim2t5j1h89hodv7sd9cneapb34uammg@4ax.com... > Or you're trying to dodge, more likely. What I said was that women > liked you (actually, "thought you were pretty" I think was the > phrase) because they considered you to be one of them. Kind of like > a "Will and Grace" arrangement, get it? No. Never watched it. I've heard a lot of gays do.Article: 112612
"YD" <ydtechHAT@techie.com> wrote in message news:drdjm2lne08iof3asi24d5u9md1uep7c7q@4ax.com... > Would you two get a room already? He's too busy with all of his secret gay Repugnicant playmates.Article: 112613
I'm looking at the Spartan-3e datasheet and I'm surprised in the number of power pins in the PQ208 package. There are * 4 VCCINT pins * 8 VCCAUX pins * 12 VCCO pins The number of VCCO makes sense (3 per banks), VCCINT could be (maybe the device consumes little), but why 8 VCCAUX? VCCAUX is just used by just 6 pins (4 JTAG pins + DONE and PROG_B). 8 power pins seems overkill for just powering 6 pins. Am I missing something?Article: 112614
On Sun, 26 Nov 2006 17:53:57 GMT, "Homer J Simpson" <nobody@nowhere.com> wrote: > >"John Fields" <jfields@austininstruments.com> wrote in message >news:tltim2t5j1h89hodv7sd9cneapb34uammg@4ax.com... > >> Or you're trying to dodge, more likely. What I said was that women >> liked you (actually, "thought you were pretty" I think was the >> phrase) because they considered you to be one of them. Kind of like >> a "Will and Grace" arrangement, get it? > >No. Never watched it. I've heard a lot of gays do. --- Then you'd probably enjoy it. -- JFArticle: 112615
Jean Nicolle wrote: > I'm looking at the Spartan-3e datasheet and I'm surprised in the number of > power pins in the PQ208 package. > There are > * 4 VCCINT pins > * 8 VCCAUX pins > * 12 VCCO pins > > The number of VCCO makes sense (3 per banks), VCCINT could be (maybe the > device consumes little), but why 8 VCCAUX? > VCCAUX is just used by just 6 pins (4 JTAG pins + DONE and PROG_B). 8 power > pins seems overkill for just powering 6 pins. > > Am I missing something? VVCAUX also powers DCMs and more see the datasheet -LasseArticle: 112616
Jean Nicolle wrote: > I'm looking at the Spartan-3e datasheet and I'm surprised in the number of > power pins in the PQ208 package. > There are > * 4 VCCINT pins > * 8 VCCAUX pins > * 12 VCCO pins > > The number of VCCO makes sense (3 per banks), VCCINT could be (maybe the > device consumes little), but why 8 VCCAUX? > VCCAUX is just used by just 6 pins (4 JTAG pins + DONE and PROG_B). 8 power > pins seems overkill for just powering 6 pins. > > Am I missing something? I know how you feel. I have often wondered why there are so many power and ground pins on these devices. But if you dig into the signal integrity issues you will find that it is amazing that even with this many power and ground pins that the parts can work at all! The packages are not really up to the task of the really high speed I/Os if you are using a lot of them. If you are pushing the quantity and speed of the I/Os at all, you should never try to use a QFP package because of the large inductance. Although the VCCAUX only powers a few I/O pins, it powers a fair amount of internal logic. Things like the DCMs are especially sensitive to power supply noise so I would not begrudge them a single power pin. I am a bit suprised that they even share the I/O supply with the internal logic since the I/O pins can make some hefty current spikes. It may be that some of the VCCAUX pins are just for I/Os and some are for the internal logic.Article: 112617
What the hell is wrong with you two??? Are you both just 8 years old? Not only are you annoying everyone who used to read this thread, you are pissing off all the gay engineers!!! GROW UP!!! BTW, I hear that you are both really gay lovers and are acting out your lover's spat in this forum. :^P John Fields wrote: > On Sun, 26 Nov 2006 17:53:57 GMT, "Homer J Simpson" > <nobody@nowhere.com> wrote: > > > > >"John Fields" <jfields@austininstruments.com> wrote in message > >news:tltim2t5j1h89hodv7sd9cneapb34uammg@4ax.com... > > > >> Or you're trying to dodge, more likely. What I said was that women > >> liked you (actually, "thought you were pretty" I think was the > >> phrase) because they considered you to be one of them. Kind of like > >> a "Will and Grace" arrangement, get it? > > > >No. Never watched it. I've heard a lot of gays do. > > --- > Then you'd probably enjoy it. > > > -- > JFArticle: 112618
"John Fields" <jfields@austininstruments.com> wrote in message news:qiujm21qpbvceoc58lf9epg4hhf8rt4jjg@4ax.com... >>> Kind of like >>> a "Will and Grace" arrangement, get it? >> >>No. Never watched it. I've heard a lot of gays do. > Then you'd probably enjoy it. Why don't you tell us all about it from the gay perspective which you know so well? I'll stick to my preference for shows for heterosexuals.Article: 112619
On 26 Nov 2006 13:59:35 -0800, "rickman" <gnuarm@gmail.com> wrote:
>What the hell is wrong with you two??? Are you both just 8 years old?
>Not only are you annoying everyone who used to read this thread, you
>are pissing off all the gay engineers!!!
>
>GROW UP!!!
>
>BTW, I hear that you are both really gay lovers and are acting out your
>lover's spat in this forum. :^P
Sno-o-o-o-ort! Almost lost my coffee over that one ;-)
>
>
>John Fields wrote:
>> On Sun, 26 Nov 2006 17:53:57 GMT, "Homer J Simpson"
>> <nobody@nowhere.com> wrote:
>>
>> >
>> >"John Fields" <jfields@austininstruments.com> wrote in message
>> >news:tltim2t5j1h89hodv7sd9cneapb34uammg@4ax.com...
>> >
>> >> Or you're trying to dodge, more likely. What I said was that women
>> >> liked you (actually, "thought you were pretty" I think was the
>> >> phrase) because they considered you to be one of them. Kind of like
>> >> a "Will and Grace" arrangement, get it?
>> >
>> >No. Never watched it. I've heard a lot of gays do.
>>
>> ---
>> Then you'd probably enjoy it.
>>
>>
>> --
>> JF
...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice:(480)460-2350 | |
| E-mail Address at Website Fax:(480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.
Article: 112620On Sun, 26 Nov 2006 22:12:16 GMT, "Homer J Simpson" <nobody@nowhere.com> wrote: > >"John Fields" <jfields@austininstruments.com> wrote in message >news:qiujm21qpbvceoc58lf9epg4hhf8rt4jjg@4ax.com... > >>>> Kind of like >>>> a "Will and Grace" arrangement, get it? >>> >>>No. Never watched it. I've heard a lot of gays do. > >> Then you'd probably enjoy it. > >Why don't you tell us all about it from the gay perspective which you know >so well? I'll stick to my preference for shows for heterosexuals. > > Gosh, don't you guys ever get bored with this ritual cycle of juvenile insults? And what's with the homosexual obsession? JohnArticle: 112621
I probably will use a full-blown 32-bit CPU in my next project. And I was thinking if I could use the Lattice Mico32 Unfortunately, I haven't had time to get familiar with this CPU yet. I know however that more than a few of you have been playing with it, so I am asking for your impression so far. I will be very thankful if anyone can answer any of the following questions: - What do you think of the CPU so far? How does it compare to the alternatives? - In terms of size and speed, how does it compare to the competition? - How good is the software support (GCC) and how well designed is the HAL and low-level library connection? How well is the Wishbone interface working in practice? - If I plan to use a non-Lattice FPGA, would things work as smooth or will development become much more difficult? - How does the area & speed change across FPGA families and vendors? I remember that Mico8 became noticeably larger when targeting Cyclone and Spartan FPGAs... - Are any there any technical difficulties against porting Linux to this CPU? (just out of curiosity and completely unrelated to my project) thank you in advance, burnsArticle: 112622
> - If I plan to use a non-Lattice FPGA, would things work as smooth or > will development become much more difficult? The only tricky bit will be the debugger, as that uses the dedicated Lattice JTAG block. Workaround that, and the rest should be no problem at all. > - Are any there any technical difficulties against porting Linux to > this CPU? (just out of curiosity and completely unrelated to my > project) It doesn't have an MMU, so the full blown Linux is out of the question. However, it should be relatively straight forward to port uCLinux. Cheers, JonArticle: 112623
rickman wrote: > Jean Nicolle wrote: > > I'm looking at the Spartan-3e datasheet and I'm surprised in the number of > > power pins in the PQ208 package. > > There are > > * 4 VCCINT pins > > * 8 VCCAUX pins > > * 12 VCCO pins > > > > The number of VCCO makes sense (3 per banks), VCCINT could be (maybe the > > device consumes little), but why 8 VCCAUX? > > VCCAUX is just used by just 6 pins (4 JTAG pins + DONE and PROG_B). 8 power > > pins seems overkill for just powering 6 pins. > > > > Am I missing something? > > I know how you feel. I have often wondered why there are so many power > and ground pins on these devices. But if you dig into the signal > integrity issues you will find that it is amazing that even with this > many power and ground pins that the parts can work at all! The > packages are not really up to the task of the really high speed I/Os if > you are using a lot of them. If you are pushing the quantity and speed > of the I/Os at all, you should never try to use a QFP package because > of the large inductance. > > Although the VCCAUX only powers a few I/O pins, it powers a fair amount > of internal logic. Things like the DCMs are especially sensitive to > power supply noise so I would not begrudge them a single power pin. I > am a bit suprised that they even share the I/O supply with the internal > logic since the I/O pins can make some hefty current spikes. It may be > that some of the VCCAUX pins are just for I/Os and some are for the > internal logic. On the S3, at least, VccAux powers the JTAG chain, part of the init setup and the DCMs. I don't believe it powers anything else. One might surmise there is at least one power pin (VccAux) that comes in at the bond wire close to each DCM; the DCMs are physically located in the 4 corners and routing power internaly would add noise and other undesirable effects. That would specify a minimum of 5 VccAux pins (4 DCMs, 1 JTAG in anything larger than the XC3S50 which has two DCMs, IIRC). I don't think I've used a non-BGA FPGA in the last 5 years, because of the lead inductance issues amongst other things (physical space v. pins is also an issue for me). Cheers PeteSArticle: 112624
Makes sense. Thanks guys. "PeteS" <PeterSmith1954@googlemail.com> wrote in message news:1164583963.122840.298060@j72g2000cwa.googlegroups.com... > rickman wrote: > >> Jean Nicolle wrote: >> > I'm looking at the Spartan-3e datasheet and I'm surprised in the number >> > of >> > power pins in the PQ208 package. >> > There are >> > * 4 VCCINT pins >> > * 8 VCCAUX pins >> > * 12 VCCO pins >> > >> > The number of VCCO makes sense (3 per banks), VCCINT could be (maybe >> > the >> > device consumes little), but why 8 VCCAUX? >> > VCCAUX is just used by just 6 pins (4 JTAG pins + DONE and PROG_B). 8 >> > power >> > pins seems overkill for just powering 6 pins. >> > >> > Am I missing something? >> >> I know how you feel. I have often wondered why there are so many power >> and ground pins on these devices. But if you dig into the signal >> integrity issues you will find that it is amazing that even with this >> many power and ground pins that the parts can work at all! The >> packages are not really up to the task of the really high speed I/Os if >> you are using a lot of them. If you are pushing the quantity and speed >> of the I/Os at all, you should never try to use a QFP package because >> of the large inductance. >> >> Although the VCCAUX only powers a few I/O pins, it powers a fair amount >> of internal logic. Things like the DCMs are especially sensitive to >> power supply noise so I would not begrudge them a single power pin. I >> am a bit suprised that they even share the I/O supply with the internal >> logic since the I/O pins can make some hefty current spikes. It may be >> that some of the VCCAUX pins are just for I/Os and some are for the >> internal logic. > > On the S3, at least, VccAux powers the JTAG chain, part of the init > setup and the DCMs. I don't believe it powers anything else. One might > surmise there is at least one power pin (VccAux) that comes in at the > bond wire close to each DCM; the DCMs are physically located in the 4 > corners and routing power internaly would add noise and other > undesirable effects. That would specify a minimum of 5 VccAux pins (4 > DCMs, 1 JTAG in anything larger than the XC3S50 which has two DCMs, > IIRC). > > I don't think I've used a non-BGA FPGA in the last 5 years, because of > the lead inductance issues amongst other things (physical space v. pins > is also an issue for me). > > Cheers > > PeteS >
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