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new to vems. failing at first hurdle

Started by Hutchie, October 25, 2009, 07:23:51 PM

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Hutchie

i have been running my car on a link ecu, but to cut a long story short it is borrowed. so i purchased a vems ecu.
and so far i just cant get the laptop, using serial on back not a usb converter, to talk to the vems box.

how do i know what version of software i need to talk to the vems.
how do i know what firmware is on vems if i cant talk to it.
and how do you upload new firmware??

thanks in advance
Hutchie


Hutchie

thanks but i have already read that, and printed it so i can follow it @ car, i simply cannot get the laptop to see the vems

gunni

Are you 100% sure you have.

12v and ground at the vems.
correct serial connection
correctly selected COM port?

max

Also try to set higher serial data rate. I couldnt get mine to work until I changed this to 19200. FW 1.1.53

Hutchie

i have tried all the different speeds, but i have no idea what firm ware i have

definately have power and very good ground

:S

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Hutchie

im in the north east of england, i bought this vems off mini-valver (dave) you may know him




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That ECU should have firmware v1.0.73 on it.  You may have problems with newer versions trying to connect.
http://media.vems.se/code/VemsMT1.0.73Final.zip

Hutchie


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Have you tried swapping the tx and rx wires into the ec18 plug?

Hutchie

i thought it was plugged into that plug???


paul_f

Did you make the harness?

Or are you plugging into the LCD connector?

Hutchie


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Now that is really strange - the cable is a straight through pin 2 to pin 2 and pin 3 to pin 3 isnt it?