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Solved ✔ Microcar MGO 2017 - 2M74K - help calcul please - Printable Version

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+--- Thread: Solved ✔ Microcar MGO 2017 - 2M74K - help calcul please (/showthread.php?tid=87777)

Microcar MGO 2017 - 2M74K - help calcul please - ka_rai - 18-01-2024

hi friends

i need help to calculate mileage from this microcar MGO

MCU is MC09S08DZ60 mask 2M74K

ORI 1 = 3714 kms
EEP 3714.rar
File Type: .rar
Downloaded: 5 times
Size: 327 bytes


ORI 2 = 3738 kms
eeprom 3738.rar
File Type: .rar
Downloaded: 3 times
Size: 332 bytes



I need 22 000 kms

compared eeprom
i see adress 72 & 73
from dump 1 (3714km) = hex 9114 > DEC 37140 so 3714x10
from dump 2 (3738km) = hex 9204 > DEC 37380 so 3738x10
dump change also adress 78 & 79 & 132 so checksum maybe ?

i think mileage 22000km must write in adress 71 = hex 035B60

I made pinout if anybody need it wink

thanks for your help

RE: Microcar MGO 2017 - 2M74K - help calcul please - volavka - 18-01-2024

Checksum B81C ,1st two byte of offset 0x78 & 0x88

Br.V

RE: Microcar MGO 2017 - 2M74K - help calcul please - Clusters - 18-01-2024

(18-01-2024, 17:46 PM)volavka Wrote:  Checksum B81C ,1st two byte of offset 0x78 & 0x88

Br.V

Yes, CRC-16/MCRF4XX biggrin

RE: Microcar MGO 2017 - 2M74K - help calcul please - ka_rai - 31-01-2024

working like a charm smile