Need 12bit ISN from 0261203590 dump 318is

[xbyte]

Im trying to get the 12bit isn from this dump

1995 318is m42b18

does anyone know if its 11D or 1D1 ?

suddenly inpa refuses to read these damn m1.7

[bram380]

BMW 318i 1.8L 16V
Bosch DME 0261203590
BMW# 1743250
Prog# 1267358597

isn ews 1D1

[xbyte]

Ok, thank you
thats the same as i found, but ews2 is only 3 digit or 12 bit

so one of the digits has to go.

[bram380]

or use below dump & put ews isn 380

[xbyte]

Ok, dme accepted isn 1D1 from my arduino

so if isn from dump is longer than 3 bytes, then remove the msb

[bram380]

wow...good news with arduino.
How do work with arduino?
It's mean for ews emulator
or
test on bench ews ecu?

[xbyte]

I have written some code for arduino, ews2 ISN is actually sendt as 24bit where 12 is ISN and the other 12bits are manipulation bits

ISN 123 -> 000100100011

[string] [reversed] from lsb to msb
01 D0 48 -> 48D 001 <- manipulation 12bits (12 last bits only)
key 12bit-> 010010001101 --- 000000000001 <- manipulation 12bits

ISN in ews2 are sendt over and over again just manipulated with different manipulation bits, its sendt as 3 bytes

baud rate 333baud
Odd
Bits 8
Stopbits 1

[jl01152]

I have written some code for arduino, ews2 ISN is actually sendt as 24bit where 12 is ISN and the other 12bits are manipulation bits

ISN 123 -> 000100100011

[string] [reversed] from lsb to msb
01 D0 48 -> 48D 001 <- manipulation 12bits (12 last bits only)
key 12bit-> 010010001101 --- 000000000001 <- manipulation 12bits

ISN in ews2 are sendt over and over again just manipulated with different manipulation bits, its sendt as 3 bytes

baud rate 333baud
Odd
Bits 8
Stopbits 1


Can you please share your Arduino code? My ews is now giving me an error with changing code key # 5. I would like to get rid of ews with an emulator asap until an emulator arrives. I need to get back on the road.

Thank you for your help.