vems 1.1.44 firmware and issues uploading

[GazzaG60]

HI

anybody had any issues with 1.1.44 upload?

today i have tried it. the firmware uploaded with reported success. when i tried to open and burn a config to the controller i got an error regarding low voltage. the map didn't load up and when i tried to reflash i get the no avr error which needs a reset. i tried the reset and the first couple of times it failed.

im gonna try a new cable after and redo the upload. heres hoping

anybody else had issues with 1.1.44

cheers

[A80Avant]

I think Billman had the same issue and Marc gave the solution.You have to use some kind of jumper to go back to the previous firmware

im waiting to get my VEMS with the 1.1.44 installed and ready to use from Marc

[GazzaG60]

i remeber the post. the reset procedure is the same pins 2 and 3 bridged for 3 secs or so then retry the upload.

maybe my cable is faulty. im gonna put another one in.

not going home till its done anyway. i want 1.1.44 as i have done the 16x14 high-boost map for it. wanna try it.

[A80Avant]

nicee

[GazzaG60]

it wont be if im walking home. lol. its 10 miles from here.

[K7ERG]

I am using VEMS 1.1.23 mapped for 12x12high boost( Not enough load sites). I also have Vemstune V3 which is a different layout. Not used it yet.

I think i will change it to 16x14high boost for more control.

I am sure there is some problems with that firmwire as its under development still.

Craig

[GazzaG60]

well i tried again. i reset it uploaded 1.1.44 and i couldn't load a map. reset and loaded 1.1.23 again and loaded a map up. it reported the same low voltage at controller this with the new cable but the map loaded?

gonna try again later but its a little strange. megatune flashing all over the place for a little time too. seems to run as normal though

[A80Avant]

edited

[GazzaG60]

just been looking at my config. i may be running the com port at a bad speed. gonna set it up and go again. justg had a rebuild on my laptop so new install of megatune.

heres hoping.

[K7ERG]

GazzaG60 - Have you tried the Vemstune?
There is also Vems 1.1.27 i am sure.


Craig

[GazzaG60]

i have a copy of vemstune. not tried it though. dont really have any issus with megatune to be honest only this time which im sure will be down something other than megatune.

got a few more laptops about too in case its an issue with this one's hardware.

will try to upload 1.1.44 again later

[K7ERG]

might be the serial lead. I had a problem communicating between the 2. As my laptop doesnt have a serial post. So had to use usb. My mates laptop connected first time using serial and the lead he have me. I then had to buy the usb converter from vems. Works fine now. I have also heard vemstune works well with the i5.

[GazzaG60]

well i tried the firmware load again. worked ok but still not able to laod a map. something is not quite right as i can see the rpm needle wobble after uploading the new firmware.

strange trhing is when i revert to 1.1.23 the map is still on the ECU, not removed.

gonna try and download the firmware again and see whats what.

[GazzaG60]

well over the weekend i tried numerous times to upload 1.1.44. all failed.

Even though the firmware loads to ecu, verifies ok and the process terminates ok.

megatune reports firmware to ECU as ????

funny thing is that when i reset the ECU and upload 1.1.23 again i dont even have to load the map. it isn't being erased when flash erase happens?