NefMoto > Technical > Tuning > Map Switching in ME7.5 with 29F400
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Author Topic: Map Switching in ME7.5 with 29F400  (Read 9986 times)
cocktailyogi
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« on: April 03, 2013, 05:01:49 AM »
Hello,

I am interested in different options for mapsitching of 2 maps. We are talking about a ME7.5 with 29F400-Flash. What kind of modifications are possible? Is it possile to trigger that switching with an external electrical signal?

Does the ECU have any unused I/Os ?

Kind regards,
Yogi
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aef
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« Reply #1 on: April 03, 2013, 06:19:27 AM »
Prior to your "how is it done" question i would like to know:

Is there enough room for a second mapping on a 29F400?
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prj
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« Reply #2 on: April 03, 2013, 06:24:26 AM »
Quote from: aef on April 03, 2013, 06:19:27 AM
Is there enough room for a second mapping on a 29F400?

More than.
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littco
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« Reply #3 on: April 03, 2013, 08:09:11 AM »
If you don't have cruise fitted you can use that. Take a cruise stalk, strip it down , wire it down and then use the switches to trigger your map switching .
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vagenwerk
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« Reply #4 on: April 03, 2013, 12:08:32 PM »
how to use cruise switch to change boost map (one stock , second with more boost) ? should we write some routine ? or what ?
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littco
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« Reply #5 on: April 03, 2013, 12:37:46 PM »
Quote from: gregor10 on April 03, 2013, 12:08:32 PM
how to use cruise switch to change boost map (one stock , second with more boost) ? should we write some routine ? or what ?

Already one written and on here! It has kfzw and krte in it as well but that can be stripped out. It controls the boost via ldrxn so load based.
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wreeve
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« Reply #6 on: April 03, 2013, 01:11:00 PM »
Back in the old days with EPROMS you could use a double size EPROM and a switch on the high address pin! I presume you could do the same with the newer flash EEPROMS? Would mean the whole 512k could be swaps on the fly?
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k0mpresd
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« Reply #7 on: April 03, 2013, 01:18:49 PM »
Quote from: wreeve on April 03, 2013, 01:11:00 PM
Back in the old days with EPROMS you could use a double size EPROM and a switch on the high address pin! I presume you could do the same with the newer flash EEPROMS? Would mean the whole 512k could be swaps on the fly?

i just made a thread about this today.
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vagenwerk
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« Reply #8 on: April 03, 2013, 02:48:25 PM »
Quote from: littco on April 03, 2013, 12:37:46 PM
Already one written and on here! It has kfzw and krte in it as well but that can be stripped out. It controls the boost via ldrxn so load based.

i found it.. after writting my post Smiley  it is written for 2.7bit , but probably would work with 1.8t i suppose ?

littco what about als/nls ? it is possible to switch off als/nls with this routine ? because i add to my file als/nls but in normal driving i don't use it , and would be nice to switch off this things Smiley
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k0mpresd
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« Reply #9 on: April 03, 2013, 08:01:52 PM »
Quote from: wreeve on April 03, 2013, 01:11:00 PM
Back in the old days with EPROMS you could use a double size EPROM and a switch on the high address pin! I presume you could do the same with the newer flash EEPROMS? Would mean the whole 512k could be swaps on the fly?

which pin are we talking here? a12? http://www.spansion.com/Support/Datasheets/AM29F400B_EOL_21505e8.pdf
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