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something wicked this way comes caution for dialup get a snack
#26
Posted 20 March 2005 - 01:29 PM
#27
Posted 20 March 2005 - 04:32 PM
I haven't played around with BASIC for any microcontrollers, but in general BASIC programs are big and slow. If it works for this application that would be great because it's easy to write. Virtually all of the code I have written for microcontrollers has been in assembly or C.
If I were designing something like this I would definately want good power supply regulation/filtering, power supply monitoring, a watchdog timer, and some sort of serial debug/admin/program interface. Chosing a uC with in-circuit serial programming and EEPROM data memory would be wise. Don't forget about some ESD protection on the I/O's. The automotive environment is very harsh. Potting or conformal coating the finished circuit might be a good idea.
#28
Posted 20 March 2005 - 08:35 PM
#29
Posted 20 March 2005 - 11:14 PM
btw after lots of pondering and rediscovering those things called hood pins i am gonna attempt to wedge the fmic and radiator that i have here from a saab 9000 into the wagon.. hehe
#30
Posted 21 March 2005 - 01:35 AM
There are some pretty good buffer ICs out there. And the stock ECU uses neither conformal nor potting and they survive pretty well. I wouldn't get too worked up over it....Don't forget about some ESD protection on the I/O's. The automotive environment is very harsh. Potting or conformal coating the finished circuit might be a good idea.
#31
Posted 21 March 2005 - 07:12 AM
I work on mission critical equipment that is deployed to the far corners of the planet, so I tend to belt and suspenders everything. Sorry if my suggestions border on excessive.

#32
Posted 21 March 2005 - 10:21 AM
#33
Posted 22 March 2005 - 09:07 PM
I *HATE* you. *runs off to find a VNT*
#34
Posted 23 June 2005 - 05:17 PM
sadly i pulled the motor from the wagon..too mujch time + money to acually put it back' on the road ..
the good news is that my work will continue butnot in wagon form
this morning i pulled a dead ea82t motor from my "new" used suby
and dropped the megasquirted+edis'd xt intake'd hks ssqv b.o.v'd ford thunderchicken intercooled chevy alternated ea82t from my wagon into a nice
85 r/x 4 door 5speed dual range with lsd
i hope to rewire it in the next few days and do the intercooler pipes
i have taken a few pics old motor / old wagon motor install
and since i have a digital video camera i lan on making a few short clips of the whole setup .. in action like on the highway
some dirt maybe a few failed 4wd drifts somewhere
some vids of the screen on my laptop showing what the motor is doing "thanks ed i dug up a battey pack for it now woot!!"
with any luck i plan on heading up to portland internatonal raceway
to get a time slip before wcss7... at leasti hope i can
i iwsh i had the 80-100 bux it requires to get about 3 runs on a dyno so i could get a better tune on the motor but eh oh well
i will be just happy to have a <slightly altered> subaru again on the road
oof its nap time

still gotta figure out how to move a large cooler with a rx hmmm
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