'808 high speed comms mod

Ecu Hardware Modifications
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antus
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'808 high speed comms mod

Post by antus »

Here are the points to connect a max232 to your '808 to provide 'no echo' type comms at 8192 baud
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Holden202T
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Re: '808 high speed comms mod

Post by Holden202T »

you need some capacitors between some of the max232 pins also though don't you ?
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antus
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Re: '808 high speed comms mod

Post by antus »

Yes, you need the whole typical standard max232 circuit. You could use the variant that has built in capacitors too. Thats left an an exercise for the reader :)
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jacomms
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Re: '808 high speed comms mod

Post by jacomms »

have a look at the data sheet for the MAX233......

Justin
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Apples
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Re: '808 high speed comms mod

Post by Apples »

I have been looking for a simple cable to work thats usb.
found the following but what does TTL level 3.3 volt or 5volt have to do with it.
here is the links.

http://www.dontronics-shop.com/ftdi-usb ... cable.html

http://www.dontronics-shop.com/ftdi-usb ... cable.html

I am thinking of trying the 5v but better to ask dumb question than fry a ecm / pcm
Don't make excuses. Make more horsepower.
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antus
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Re: '808 high speed comms mod

Post by antus »

I split the eprom reading/writing thread out of here and created a new subforum for it. The new thread is here
https://pcmhacking.net/forums/viewtopic.php?f=33&t=255
Have you read the FAQ? For lots of information and links to significant threads see here: http://pcmhacking.net/forums/viewtopic.php?f=7&t=1396
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vn5000
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Re: '808 high speed comms mod

Post by vn5000 »

If anyones interested i just found a way to get an echo on the above hi speed mod.You just need one diode and a 1k resister.Just hooked it up to my 808 and tunerpro worked fine and so did vl400s flash tool,whereas before i could only use scannerpro. :director:
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djbrooksy
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Re: '808 high speed comms mod

Post by djbrooksy »

:punk: sounds to good to be ture
got any pic's or diagrams
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vn5000
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Re: '808 high speed comms mod

Post by vn5000 »

Its only a simple diagram i drew in ms paint but its all you should need.
808 hi speed echo mod.JPG
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Holden202T
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Re: '808 high speed comms mod

Post by Holden202T »

interesting, so this is a link between pin 11 and 12 on the max232 i am guessing ?
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