Zero would be:
869 343 - 869343 = 0 ( add 869343)
177777 + 869343 = 1047120
1047120 / 16 = 65445
hex value = FFA5
Still need you to try this Grunt asap!
GM Technical Document Discussion
Holden VT and VX Instrument Cluster EEPROM Programming
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by gruntly69 » Sun Apr 22, 2012 3:44 pm
LMAO, was up till 2am last night & also in a backwards way I figured it out but not as accurate as yours!
I was going to try a decimal value of 55555 x 16 next & thought it would be somewhere around 150,000Kms?
But your logic is a lot better & more accurate so I'll possibly get a chance when at workshop tomorrow!
If anyone has any tips on desoldering with wick or anything it would help!
Nice work TAZZ!!!!!
I was going to try a decimal value of 55555 x 16 next & thought it would be somewhere around 150,000Kms?
But your logic is a lot better & more accurate so I'll possibly get a chance when at workshop tomorrow!
If anyone has any tips on desoldering with wick or anything it would help!
Nice work TAZZ!!!!!
by gruntly69 » Sun Apr 22, 2012 4:29 pm
Would be nice to figure the logic behind how the hell 177776 equals 869,344?
I couldn't find any correlation?
I couldn't find any correlation?
by jezzab » Sun Apr 22, 2012 5:29 pm
for Intel AB28f400B5 chips which is a PSOP 44 Pin chip, I use a gas soldering iron with the blower tip. I put something on the top of the chip to help as a heatsink. Heat the legs on one side while gently applying pressure to lift it. repeat for the other side. I can get em off in about 2 minutes and they look like new. DO NOT apply alot of pressure lifting or you will lift the track/pad off the PCB.
Daily Ute - 2009 Holden VE SSV Ute Single Turbo (IQ, E3 Cluster, EDI) - 586rwhp
Drag Ute - 2002 Holden VU SS Twin Turbo - 1010rwhp [SOLD]
All VE/VF Module reprogramming. Remote programming with flash box
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Drag Ute - 2002 Holden VU SS Twin Turbo - 1010rwhp [SOLD]
All VE/VF Module reprogramming. Remote programming with flash box
http://www.facebook.com/jsbperformance
by aumatt » Sun Apr 22, 2012 5:40 pm
Try this seemed to work on the values given.
Say you want 100,000km
Add 1440 to it (101,440)
Divide by 16 (6340 or 0x18c4)
Minus that figure from 0xFFFF (0xFFFF - 0x18C4 = 0xE73B)
so 0xE73B should be the start of the 16 word odo amount.
Let me know how it goes as I only have a couple of VT clusters in pieces at the moment and not set up for my test bench.
Matt
Say you want 100,000km
Add 1440 to it (101,440)
Divide by 16 (6340 or 0x18c4)
Minus that figure from 0xFFFF (0xFFFF - 0x18C4 = 0xE73B)
so 0xE73B should be the start of the 16 word odo amount.
Let me know how it goes as I only have a couple of VT clusters in pieces at the moment and not set up for my test bench.
Matt
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by TazzI » Sun Apr 22, 2012 6:51 pm
Yeah Matts way works.
Probably is the Proper way of calculating. Is also quicker!
Mine was a simple backwards calculation. Either way works
Probably is the Proper way of calculating. Is also quicker!
Mine was a simple backwards calculation. Either way works
by gruntly69 » Sun Apr 22, 2012 9:05 pm
Thanks Jezza, Matt & Taz... will give it a go tomorrow hopefully & let you know!
same with this section as the VY-VZ would be great to get some other locations for stuff too...
same with this section as the VY-VZ would be great to get some other locations for stuff too...
by TazzI » Sun Apr 22, 2012 9:28 pm
Seems I should invest into a vx cluster and have a tinker!
Although, my programmer can't read 93Sxx eeproms.. only 93Cxx eeproms.
May have a look around for yours grunt. Unless anyone can suggest different?
Well dont know what else to search for in these clusters! guess we figured out the most important part I guess.
Did a comparison between the single and triple cluster dumps... but the difference between the two don't really give much to go on!
Although, my programmer can't read 93Sxx eeproms.. only 93Cxx eeproms.
May have a look around for yours grunt. Unless anyone can suggest different?
Well dont know what else to search for in these clusters! guess we figured out the most important part I guess.
Did a comparison between the single and triple cluster dumps... but the difference between the two don't really give much to go on!
by gruntly69 » Mon Apr 23, 2012 1:57 pm
PROOF!!!!!
I was aiming for 148690, but as that's not divisible by 16 I went as close as possible aimed for & got 148690Kms!
Just to know too the 55555 that I was going to put in I think would have achieved 148260Kms if my reverse maths is right, not bad for rough guestimate at 3am sat morning!
Does your programmer support L series EEPROM Taz? I read on another forum it reads/writes same as these eeproms?
But yeah can get a gq3 delivered on eBay for under $100!
I was aiming for 148690, but as that's not divisible by 16 I went as close as possible aimed for & got 148690Kms!
Just to know too the 55555 that I was going to put in I think would have achieved 148260Kms if my reverse maths is right, not bad for rough guestimate at 3am sat morning!
Does your programmer support L series EEPROM Taz? I read on another forum it reads/writes same as these eeproms?
But yeah can get a gq3 delivered on eBay for under $100!