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mexanico1971
3rd February, 2014, 04:46 AM
HI !
I want to make one eprom "switcher "
but there are some component"s that I"m missimg !

I found this ! see pic !
what smd is that ?!

thank"s in advance

BR
Joe019
3rd February, 2014, 03:14 PM
Hi m8!.

Maybe its s logical gates driver like as 74HC125 or something like that.

BR
smayer
4th February, 2014, 12:33 AM
HI !
I want to make one eprom "switcher "
but there are some component"s that I"m missimg !

I found this ! see pic !
what smd is that ?!

thank"s in advance

BR

It?s nice if you let know what Eprom you need switch, it?s not the same switch a 24c02 or 29f400.
mexanico1971
4th February, 2014, 08:47 AM
comum eprom !
27c 28f 29f e.t.c !!
but for shore must have one jumper or more in case of diferent tipes !
rigth ?!
smayer
4th February, 2014, 11:47 PM
For example: if need 2 files and you car use 29f200, just use 29f400 and switch 0 or +5 in last adress pin.
Don?t find universal solution to diferent memory types.
Joe019
5th February, 2014, 09:24 AM
Yes, you are right. I made a EDC15M from BMW 320D with PLCC changing the state of the last address pin.

BR
matech
7th February, 2014, 12:53 PM
on-run or with engine off?

what about 27c256/27c512?
smayer
7th February, 2014, 10:53 PM
on-run or with engine off?

what about 27c256/27c512?
with this pr?-historic eprom can switch with engine run.
matech
8th February, 2014, 12:22 AM
I love pre-historic cars ;-D
mexanico1971
8th February, 2014, 07:31 AM
Yes !
that"s what I"m try to experience !
old cars !
I "m searching for realtime remap on old cars , like ostrisch , or greedy e-manager !
matech
8th February, 2014, 08:38 AM
Emulation or dual map switch?
mexanico1971
8th February, 2014, 09:04 AM
Emulation or dual map switch?

emulator !

I"m recovery Info for make one !
and we can use tunerpro and other"s soft"s !
Joe019
8th February, 2014, 11:50 AM
on-run or with engine off?

what about 27c256/27c512?

HI m8!

With the car runing, i can change maps from stock to tuned.

About 27C256 i made the same. I can change it with the car runing too ;)

BR
will4u69
8th February, 2014, 12:54 PM
HI m8!

With the car runing, i can change maps from stock to tuned.

About 27C256 i made the same. I can change it with the car runing too ;)

BR

How did you do this?
I would like to do this.
Thanks

Sent from my GT-I9300 using Tapatalk 2
smayer
9th February, 2014, 12:26 AM
How did you do this?
I would like to do this.
Thanks

Sent from my GT-I9300 using Tapatalk 2

Just read the thread and you find the solution!!
Joe019
9th February, 2014, 04:27 PM
Just read the thread and you find the solution!!

Agree with you ;)