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| 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.
Actually the 1802 has some really nice features, including an any use register set, a regular instruction set ala RISC, and a few twists if you can learn how to use them. It also happened to be relatively rad-hard as a byproduct of the design and implementations. This is why it is in a lot of satellites in preference to a lot of competitors.
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JosephKK
Gegen dummheit kampfen die Gotter Selbst, vergebens.
--Schiller
It'll be a VME module, 8 channels maybe, fully floating programmable precision resistors, wide range, glitch free, ac/dc, ultralow offsets.
5 ohms to 100K maybe, but mostly used to simulate RTDs in the 50-250 ohm range maybe. My customer says he expects to build a voltage divider with it, program the resistance as a sine wave, and if he sees a smooth sine wave, he'll buy it. I had to explain to him about the distortion he'll see... he started life as a mechanical engineer. I guess I could give him the equation that would linearize it to give a perfect sine in a given divider situation.
The resistor thing turns out to be non-trivially non-trivial. We've burned through about a dozen wild circuits so far. The competition uses relays and resistors!
Where did you find one that used relays and resistors? Tubes too? ;-) This has been done many times before, although most designs place pretty realistic constraints on the excitation current and probably can't follow much in the way of frequency (or pulses as with some Rosemount xmtrs).
Best regards, Spehro Pefhany
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I get very little from the BBC, but a fair amount from the Norwegian media, which has less incentive to tow the American official party line. It's also quite good for gauging general European opinions, as they report better on what people think and say, rather than just what some media mongul or his keepers want people to think. I also try to read from various American news sources - both big ones like CNN, and sites like
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and moveon (and yes, I am fully aware of their bias, and that their opinion pieces are specifically chosen).
There is undoubtedly something in that. In modern times, it is easier to spread information than it used to be - but ironically, it is easier to control and limit information in the media, at least in some countries. In Italy, for example, the president (until the last elections) controlled most of the major media through companies he owned. In the USA, the majority of media outlets are controlled by a few players who, either by choice or coercion, mostly follow the administration's party line. I read an interesting article once about how state-owned news outlets like the BBC are far freer from any government control than independent outlets, partly because any attempted control brings cries of government censorship, and partly because their economic support is more stable.
This all works out to Europeans getting plenty of information from smaller sources in the USA, which the European media can publish, while most Americans base their knowledge on what the TV news tells them, which is based on what Bush & co. want them to hear.
A far better government doesn't make "mistakes" of that magnitude in the first place. Not that the lying and misleading the country to war could be called "mistakes", when the people involved were perfectly aware of what they were doing. So no, the resignations do not make the UK government "good" - they just make it better than the USA, where the "mistake" makers are still getting away with it.
In the moral sense of "good", very few people outside the USA (and steadily less inside the USA) would consider the current Bush administration to be a "good" government, especially in international affairs. Similarly, the UK government can't be called "good" when they have repeatedly and knowingly lied about Iraq, to the cost of British soldier's lives and leading to terrorist bombings in London (to say nothing of the cost to Iraq).
However, there is another way to look at "good". As a country, the UK is going well - the economy is strong, the health service is (relatively) healthy, and for the average man in the street, Iraq is pretty far away. In the last UK elections, Labour was re-elected despite the electorate knowing that Blair is a lying toadie with ambitions to be the first president of the UK - simply because they were better than any alternatives, and that the country itself was being well run.
When you look at the USA, however, it's another matter. Every chance he gets, Bush has pushed for policies making the rich richer and the poor poorer - that's not good government in any sense. The mishandling of Katrina and New Orleans is not good government in any sense, or at any level (state or federal). The health service, as seen by the majority of Americans, is not good. The steady manipulations to increase the power of the president ("I can do anything I want, as long as I claim it combats terrorism") is not good.
Sounds a bit like the UK's relationship with the USA. Arguably, Blair had no choice but to follow Bush's lead in Iraq (after doing his best to argue for some more rational moderations, like getting UN support), because the UK's relationship with the USA is too close to break without a lot of damage.
That would be fine and dandy - *if* the US weren't so intent on making the rest of the world so dangerous for all of us.
And no, this viewpoint is not in the least unusual. It occurs to me that I literally don't know *anybody* (outside the US) who doesn't share this viewpoint these days...
It was taped out the same way that old pcboards were. In today's terms monstrous. With that much track redundancy a lot of radioactive particles were ignored. There were one or two other old parts that had the same properties
Not quite. The D is a register too. It is the only one that can be used for math. The others can increment, decrement and address memory.
The 1802 has 16, 16 bit registers. Among them, only 0 and 1 (IIRC) are a special case. The rest are all equally useless. Any loading and storing of those registers have to go via the D register where you do the math. As a result, you have to load the registers before you started doing any math. Doing an A=B+C takes 12 instructions if A, B adn C are in random memory locations.
I did use changing which register is the program counter. I also used the built in DMA. It meant that the software only had to worry about the LED displays once per refresh cycle.
The SOS one was quite rad hard.
It was also quite low powered if you measured power/time. It was higher than some others for power/results.
Right, bandwidth/settling time is an issue. How fast is the scan rate for the Rosemount? I'm thinking that not many scanning-type RTD acquisition systems would measure in much less than a millisecond maybe. I'm guessing an active simulator could do tens of KHz without a lot of difficulty.
Oh please. The world is still suffering from centuries of European colonialism, border carving, racism, slavery mongering, and exploitation. It took two ghastly world wars to shock Europe into submission and passivity, to drag the US out of isolationism, and to make the US responsible for the defense of Europe, Japan, Taiwan, and South Korea. So now Europe gets all smug and moral.
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Go undo some of the damage in the "Belgian Congo", "Rhodesia", India and Pakistan, British Columbia, the middle east, all the European messes left for other to clean up. Start your own Marshall Plan.
I've never used an 1802, but if it's nostalgia week, one of my favorite "small" micros was the 6502. 256 working registers, called "page 0", and orthogonal, symmetrical instructions - the only drawback is that the stack was fixed at 256 bytes on "page 1". Made a dandy encoder for a raw keyboard, had N-key rollover and everything.
I've also done 8051 (8035, actually), and didn't like the timer at all, but I was able to make it work.
The one where in Canda where Vancouver is, I guess. Canada was a colony at one time, but but I don't think I'd consider it a "mess". Unless you're talking to the way they put gravy on fries...
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Grant Edwards grante Yow! .. I want to perform
at cranial activities with
visi.com Tuesday Weld!!
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