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Title: Map Switching in ME7.5 with 29F400 Post by: cocktailyogi 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 Title: Re: Map Switching in ME7.5 with 29F400 Post by: aef 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? Title: Re: Map Switching in ME7.5 with 29F400 Post by: prj on April 03, 2013, 06:24:26 AM Is there enough room for a second mapping on a 29F400? More than. Title: Re: Map Switching in ME7.5 with 29F400 Post by: littco 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 .
Title: Re: Map Switching in ME7.5 with 29F400 Post by: vagenwerk 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 ?
Title: Re: Map Switching in ME7.5 with 29F400 Post by: littco on April 03, 2013, 12:37:46 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. Title: Re: Map Switching in ME7.5 with 29F400 Post by: 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?
Title: Re: Map Switching in ME7.5 with 29F400 Post by: k0mpresd on April 03, 2013, 01:18:49 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. Title: Re: Map Switching in ME7.5 with 29F400 Post by: vagenwerk on April 03, 2013, 02:48:25 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 :) 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 :) Title: Re: Map Switching in ME7.5 with 29F400 Post by: k0mpresd on April 03, 2013, 08:01:52 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 |