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"Good news" -- Spirit responds in 'cripple mode'
George William Herbert wrote: jimmydevice wrote: Funny how they call that "low cost" and yet one of those boards will set you back a few million. How do you know that the board is "several million"? That quote sounds a bit speculative. That's higher than the numbers I saw, but it was seven figures. I designed bios for carrier class systems and the system boards were mever over 10K. I can't see testing and rad-hardening adding more that 10X to the price. 2 Mil? Really??? That's 200 times the price of a highly tested, six nines system. You have an engineering division producing custom boards, processors, other chips. To space rated specs. The product volume is, roughly, one flightset per year. You work out the numbers... Why is NASA buying from BAE? That STINKS! Note to self, Write congress and call press. It was originally a Lockheed division; they sold it to BAE. I believe they're physically located in the US, however. Manassas, Virginia, to be precise. -george william herbert Doesn't anyone realize or remember that the low cost of modern electronics is because they are mass-produced and sold by the millions to consumers? Making a few specially designed and radiation resistant computer and associated electronic equipment is quite expensive. Mike Walsh |
#22
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"Good news" -- Spirit responds in 'cripple mode'
"Bill Bonde ( the oblique allusion in lieu of the frontal attack )" writes:
Thanks. I noticed that this board has a PCI bus. Don't tell me they actually have PCI cards in the Mars rover. Good grief! Well, what would you have them do, come up with a special bus for each new space probe? -- Phil Fraering http://newsfromthefridge.typepad.com |
#23
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"Good news" -- Spirit responds in 'cripple mode'
"Bill Bonde ( the oblique allusion in lieu of the frontal attack )" writes:
Thanks. I noticed that this board has a PCI bus. Don't tell me they actually have PCI cards in the Mars rover. Good grief! OK, I won't. But I will tell you it's possible to use a PCI bus without PCI cards and PCI connectors. For example, many PC motherboards have on-board devices hooked up to the PCI bus on the motherboard, avoiding the need for a PCI card and PCI connector. And I guess they all have the main chipsets hooked up to the PCI bus without using a card or connector. |
#24
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"Good news" -- Spirit responds in 'cripple mode'
"Bill Bonde ( the oblique allusion in lieu of the frontal attack )" writes:
Thanks. I noticed that this board has a PCI bus. Don't tell me they actually have PCI cards in the Mars rover. Good grief! OK, I won't. But I will tell you it's possible to use a PCI bus without PCI cards and PCI connectors. For example, many PC motherboards have on-board devices hooked up to the PCI bus on the motherboard, avoiding the need for a PCI card and PCI connector. And I guess they all have the main chipsets hooked up to the PCI bus without using a card or connector. |
#25
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"Good news" -- Spirit responds in 'cripple mode'
"Gary W. Swearingen" wrote: "Bill Bonde ( the oblique allusion in lieu of the frontal attack )" writes: Thanks. I noticed that this board has a PCI bus. Don't tell me they actually have PCI cards in the Mars rover. Good grief! OK, I won't. But I will tell you it's possible to use a PCI bus without PCI cards and PCI connectors. For example, many PC motherboards have on-board devices hooked up to the PCI bus on the motherboard, avoiding the need for a PCI card and PCI connector. And I guess they all have the main chipsets hooked up to the PCI bus without using a card or connector. OK, but you'd think they'd say something like that. |
#26
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"Good news" -- Spirit responds in 'cripple mode'
"Bill Bonde ( the oblique allusion in lieu of the frontal attack )" wrote in message ... "Gary W. Swearingen" wrote: "Bill Bonde ( the oblique allusion in lieu of the frontal attack )" writes: Thanks. I noticed that this board has a PCI bus. Don't tell me they actually have PCI cards in the Mars rover. Good grief! OK, I won't. But I will tell you it's possible to use a PCI bus without PCI cards and PCI connectors. For example, many PC motherboards have on-board devices hooked up to the PCI bus on the motherboard, avoiding the need for a PCI card and PCI connector. And I guess they all have the main chipsets hooked up to the PCI bus without using a card or connector. I heard they got a good deal on some microchannel hardware from IBM. BV. www.iheartmypond.com |
#27
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"Good news" -- Spirit responds in 'cripple mode'
In article , the oblique allusion in
lieu of the frontal attack wrote: Here's a description of the single-board computer at least: http://www.iews.na.baesystems.com/sp...0/rad6000.html Thanks. I noticed that this board has a PCI bus. Don't tell me they actually have PCI cards in the Mars rover. Good grief! We are using this board on the BAT instrument on Swift, a Gamma-Ray Burst satellite we are launching later this year. Yes, we use the PCI bus to connect to other PCI cards in the card cage (which is significantly sturdier than the $29 ATX case you pick up Ed's Computer Shop). -- David M. Palmer (formerly @clark.net, @ematic.com) |
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