MembersPage/RicoPL (2018-08-25 13:33:26)

get error : file "vems.hex" is missing.

duplicate from report: http://vems.hu/vemstune/bugreports/reports.php?cmd=view&key=zprqad


Hello Rico_pl,

Upgrade to firmware higher than 1.2.11 requires bootloader upgrade,

please follow the procedures on:

http://vems.hu/vt/help/v3/general/bootloader_upgrade.html

Best regards, Dave


Thanks Dave, as I bought the car with VEMS unit (Escort Cosworth), I have set Trigger to "Lancia_cosworth".

My first error report shows I have trigger signals but RPM is 0 while cranking. Acc. to WIKI I should use firmware 1.2.26+.

Is this correct ? Or should it work also with 1.2.11 ?

I cannot see why RPM stays 0 while cranking. Fuel is injecting.

BR, Rico


Hello Rico,

To assist you in your startup/trigger debug, i would need the following:

Using these i can get a beter understanding of whats going on.

You can upload these files to the FileArea and link here or fire a sharing report (from VT) and link that. We'll work from there.

Best regards, Dave


Hi Dave,

here the link http://vems.hu/vemstune/sharingcenter/reports.php?cmd=view&key=pmPtyJ

BR Rico


Hello Rico,

I have reviewed your triggerlog and vemslog, this trigger type should work with special trigger type = Normal, Tdc after the trigger is likely to be around 60deg, use a timing light to verify and adjust.

I have attached a corrected config (having these suggested changes) to your sharing report.

Best regards, Dave


Thanks I will test this. But why is RPM =0 ?

I thought it triggers on TDC so 0 degree ?

BR, Rico


Hello Rico,

When using simple trigger with camsync, rpm will show 0 when cam sync is not accepted (or not seen), so without sync it will not show rpm.

With the corrected settings that should hopefully be solved.

Best regards, Dave


Thanks Dave, but I do not understand the 60 degree value.

If I set TDC both teeth (prim, sec) are on the sensors,so

0 degree.

Sorry for all questions, you can give me your Paypal and I

can make a donation.

BR Rico


Hello Rico,

Lets take it one step at a time, with the corrected config do you have:

If so adjust tdc_delay so commanded timing advance lines up with your timing mark. Its recommended to force a fixed advance via:

It is recommended to choose the firing tooth (first trigger tooth) so that tdc_delay is in the range of 60-100deg.

I hope this clears things up for you,

Best regards, Dave