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BigEd
Joined: Wed Jan 09, 2013 6:54 pm
Posts: 1782
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(The ESA's Rosetta probe, in orbit around a comet, today launched a lander called Philae.) See http://www.cpushack.com/2014/11/12/here ... n-rtx2010/Quote: The lander is powered by two Harris RTX2010 16-bit stack processors, again a design dating back to the 1980′s. These are used by the Philae CDMS (COmmand and Data Management System) to control all aspects of the lander.
Why was the RTX2010 chosen? Simply put the RTX2010 is the lowest power budget processor available that is radiation hardened, and powerful enough to handle the complex landing procedure. Philae runs on batteries for the first phase of its mission (later it will switch to solar/back up batteries) so the power budget is critical. The RTX2010 is a Forth based stack processor which allows for very efficient coding, again useful for a low power budget
via https://plus.google.com/u/0/11595829590 ... kMGYs6bynE
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| Wed Nov 12, 2014 10:15 pm |
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Brad R
Joined: Fri Jan 10, 2014 11:19 pm
Posts: 25
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Oh, now that is a hoot. Thanks for posting it!
_________________1802, 6809, 8051, 8086, MSP430, Z80 -- there's a Forth for that: http://www.camelforth.com
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| Wed Nov 12, 2014 11:50 pm |
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Garth
Joined: Tue Dec 11, 2012 8:03 am
Posts: 285
Location: California
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I didn't know there ever was an RTX2010, but here's a page I kept from 1991 on Silicon Composers' SC/Fox Cub SBC that uses the RTX2000. The performance is pretty impressive. Look how it compares to the 80386 in the chart on the second page! Attachment:
FoxCubSBC.jpg [ 363.78 KiB | Viewed 8660 times ]
Attachment:
FoxCubSBC2.jpg [ 374.76 KiB | Viewed 8660 times ]
_________________http://WilsonMinesCo.com/ lots of 6502 resources
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| Thu Nov 13, 2014 7:29 am |
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BigEd
Joined: Wed Jan 09, 2013 6:54 pm
Posts: 1782
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It turns out the RTX2010 has a wikipedia page, with a link to a datasheet http://en.wikipedia.org/wiki/RTX2010http://www.intersil.com/content/dam/Int ... 2010rh.pdfNot that you can buy the chip! There's also a NASA page on Forth in space - or there was. Here's a copy: http://web.archive.org/web/201102041607 ... .nasa.gov/
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| Tue Nov 18, 2014 5:00 pm |
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Druzyek
Joined: Fri Aug 01, 2014 3:00 pm
Posts: 23
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That is awesome! Quote: Not that you can buy the chip! That's a shame. It would be fun to play with. Is there any place you might find one of the other Forth chips like the F21 or X18?
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| Fri Nov 28, 2014 4:03 am |
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barrym95838
Joined: Tue Dec 31, 2013 2:01 am
Posts: 116
Location: Sacramento, CA, United States
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Garth wrote: ...The performance is pretty impressive. Look how it compares to the 80386 in the chart on the second page!
Wow, that is impressive. On the flip-side, what the heck was wrong with the 68881? Its Float + - * / performance is seemingly pathetic! Is there something we're not being told here, or is it the reason the 68881 is an evolutionary dead end? Mike
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| Fri Nov 28, 2014 6:00 am |
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BigEd
Joined: Wed Jan 09, 2013 6:54 pm
Posts: 1782
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| Fri Nov 28, 2014 5:07 pm |
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Druzyek
Joined: Fri Aug 01, 2014 3:00 pm
Posts: 23
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I found the UltraTechnology website also and tried emailing the author about getting a hold of an F21, but it looks like he passed away three years ago 
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| Sat Nov 29, 2014 3:22 am |
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Brad R
Joined: Fri Jan 10, 2014 11:19 pm
Posts: 25
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For those who might not know, Chuck Moore's latest Forth-chip venture is GreenArrays http://www.greenarraychips.com/_________________1802, 6809, 8051, 8086, MSP430, Z80 -- there's a Forth for that: http://www.camelforth.com
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| Sat Nov 29, 2014 7:04 am |
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Druzyek
Joined: Fri Aug 01, 2014 3:00 pm
Posts: 23
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That's really neat. Schmartboard sells a breakout with the chip for $35 if you don't want to buy the $450 development board. http://www.schmartboard.com/index.asp?page=products_csp&id=532
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| Sat Nov 29, 2014 3:32 pm |
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