Help on cluster 8l0919880a with REWARD !

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macxxx

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	Re: « Reply #15 on: September 15, 2016, 07:30:33 AM »

And if you want to change the map you should change the last 8 bytes - they are the step of the needle motor

The first 8 bytes is the speed

You pair them in words , swap and change to decimal - you will get something like 24 1600 2800 4100 if you divide it by 16 you will get the angle of needle from the zero position ( close to the 0 kmh Mark at gauge faces )

If you divide the bytes that are the speed by 16 you will get the according spped values.


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febomax

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	Re: Help on cluster 8l0919880a with REWARD ! « Reply #16 on: September 15, 2016, 01:24:29 PM »

So to make the gauge show HIGHER speed i have to LOWER the values of last 8 bytes....
Same speed at low angles= speed is higher on display at end...
Not the first 2 and not the last two (they are the limits) but the central two words.
Am i right ?
Roll Eyes


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macxxx

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	Re: Help on cluster 8l0919880a with REWARD ! « Reply #17 on: September 15, 2016, 02:46:55 PM »

no you have make these value higher but it's not the way

I talked to a friend who put in a passat cluster to A38L - he changed the K-Value to a closest to Audi 3447 ( 770D HEX -> swap byte 0D77 -> 3447 DEC ) and it works ok

So your cluster 880L had a 3564 ( EC0D HEX -> swao byte 0DEC -> 3564 DEC ) , the new one has 3447

try to change 77 0D to EC 0D


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febomax

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	Re: Help on cluster 8l0919880a with REWARD ! « Reply #18 on: September 16, 2016, 06:58:57 AM »

I tried to change ONLY the byte 77 to EC.
Still "def" on cluster and speed is BETTER but not perfect !
Today was vey bad weather so i cant try much but at about 100 km/h real it show on cluster about 95 !
Before was about 90 !
Grin

So we are in the right way...
Any suggestion for other tests and to take out DEF on display ?
For now you are almost the winner of the contest ...
Wink


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macxxx

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	Re: « Reply #19 on: September 16, 2016, 07:20:08 AM »

The contest is not my goal


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macxxx

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	Re: « Reply #20 on: September 16, 2016, 07:28:04 AM »

It's just quite interesting Wink

If you raise the value of aby byte from the speed map by the diffrence beetween EC and 77 the def should dissapear , try it just for test purpose


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febomax

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	Re: « Reply #21 on: September 16, 2016, 01:59:04 PM »

Quote from: macxxx on September 16, 2016, 07:28:04 AM

It's just quite interesting Wink

If you raise the value of aby byte from the speed map by the diffrence beetween EC and 77 the def should dissapear , try it just for test purpose

What u mean for "aby byte" ? Which byte ?
I can try, just for testing...
Wink


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macxxx

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	Re: « Reply #22 on: September 16, 2016, 10:05:16 PM »

Any byte od the speedmap , the checksum is probably the sum of the map bytes , and some other bytes including kvalue - but I cannot figure it out...the immo1 dump is a complete mystery Wink


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aceton

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	Re: Help on cluster 8l0919880a with REWARD ! « Reply #23 on: September 30, 2016, 12:51:41 PM »

check this dump


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febomax

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	Re: Help on cluster 8l0919880a with REWARD ! « Reply #24 on: October 01, 2016, 05:32:19 AM »

Thanks for the try ...
With this dump NO def but NO FIS display at all !
Embarrassed

So little useless, i swapped cluster to fix fix problem...
Grin


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