COREdevelopments
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| posted on 14/4/08 at 06:33 PM |
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megajolt coms issue
hi guys, i am trying to get my megajolt to link upto the laptop but cant seem to do it. is there ant specific way? im lost!
can anyone help?
thanks
rob
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RichardK
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| posted on 14/4/08 at 06:39 PM |
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How are you connecting it to the laptop, are you using a usb to serial convertor. Are you sure the serial cable is staright through and not a null
modem cable which look similar but are wired differently.
A bit more info required I think is needed.
Rich
Gallery updated 11/01/2011
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COREdevelopments
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| posted on 14/4/08 at 06:44 PM |
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sorry, im using a straight through comms cable connected to a usb - comms lead.
when i try and click update configuration it says unable to communicate with serial port!!
is that a bit more info?
thanks
rob
[Edited on 14/4/08 by COREdevelopments]
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MkIndy7
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| posted on 14/4/08 at 06:58 PM |
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Have you checked in the system properties that the USB-Serial converter is using COM1?
Sometimes it just picks a free COM port that isisn't being used already, certainly the old versions of Megajolt never recognised other ports
being used, not sure if newer versions do.
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COREdevelopments
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| posted on 14/4/08 at 06:59 PM |
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ok how the hell do you do that? i feel so dumb! 
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big_wasa
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| posted on 14/4/08 at 07:04 PM |
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in megajolt tune
Tools
Options
pick a com port
set your computor to use that port for your usb device.
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paulf
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| posted on 14/4/08 at 07:04 PM |
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Hi Rob
You need to configure the usb converter to a serial port in the comms menu for megajolt and also on your PC, i cant remember the full details of the
PC options but had the same problem with someone else using a USB adaptor and it was the PC end that didnt match the serial port selected in the
megajolt menu.
Paul
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MkIndy7
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| posted on 14/4/08 at 07:06 PM |
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Tranna do this from memory because i've got vista now,
Basically you've got to get into Device Manager (used to tbe right click on MyComputer and then properties)
Then scroll down to "Ports (COM&LPT)"
The USB adapter should be in there, right click on that and properties..
Then in the window that pops up there should be a tab "port settings"
Then in the advanced button on that there should be the option to select which COM Port it uses.
Hope you can follow that
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big_wasa
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| posted on 14/4/08 at 07:07 PM |
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or try the differant com ports in mjl untill one talkes to the pc
 
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COREdevelopments
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| posted on 14/4/08 at 07:15 PM |
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ok it says that the usb is connected to comms port 8! does the megajolt go upto 8?
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RichardK
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| posted on 14/4/08 at 07:21 PM |
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Yes mate it goes upto 10, Tools > Configurator Options and drop down to choose your com port, with those usb leads it can differ each time you plug
it it as well.
Rich
[Edited on 14/4/08 by RichardK]
Gallery updated 11/01/2011
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COREdevelopments
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| posted on 14/4/08 at 07:30 PM |
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mine goes upto com4 then has /dev/ttys0 and so on. cant find any coms past 4.
this is testing my patients
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COREdevelopments
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| posted on 14/4/08 at 07:36 PM |
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i managed to changed the usb from com port 8 to com port 1, but still no joy!!
what am i doing wrong?
rob
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RichardK
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| posted on 14/4/08 at 07:42 PM |
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What version of Megajolt Lite Jr Configurator software are you using? Mine is version 3.2.1
Does it look like this?
[Edited on 14/4/08 by RichardK]
Gallery updated 11/01/2011
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COREdevelopments
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| posted on 14/4/08 at 07:45 PM |
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not sure, i had it from paulf a while back, think it may be v3.
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COREdevelopments
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| posted on 14/4/08 at 07:48 PM |
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no looks nothing like that! looks far simpler and more old, yours looks quite cool with all the digits. so take it mine is an older version
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RichardK
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| posted on 14/4/08 at 07:50 PM |
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You may want to try the latest version then, depending on the firmware you have on your megajolt that may need doing as well.
If it was me I would be getting the latest version of software, ensuring the com port in windows matches the megajolt(ie let windows sort itself out
the make mj match that instead of trying to force it the other way round) If it still won't communicate try doing the firmware as this
doesn't use that software it uses the firmware tool.
The megajolt is powered up isn't it! the isolator switch isn't off is it 
Just thought I'd check!!! Hope you're not offended!!
Rich
Gallery updated 11/01/2011
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COREdevelopments
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| posted on 14/4/08 at 07:54 PM |
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never offended on here mate. ye think it is powered up, i got no isolator switch. just wired upto ignition. maybe i should try the new version.
just wish i could get it to comunicate.
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MkIndy7
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| posted on 14/4/08 at 08:00 PM |
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I've got the version 3 software running on a approx 3 years old Megajolt (it was originally the old Java based tuning software)
You might need to re-start the computer before the USB adapter properly uses the COM1, if something was already using it the computer will prob need
re-starting.
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paulf
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| posted on 14/4/08 at 08:04 PM |
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Hi Rob
It is some time since i supplied the megajolt, so am assuming it may have early firmware and tuning software loaded .
You need to go to the megajolt site and find the instructions on upgrading firmware, and then download the latest firmware and configaration software
as it is much better than the old version and has more facilitys.
Check it out and get back to me if you have any questions about the firmware upgrade.
Paul
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COREdevelopments
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| posted on 14/4/08 at 08:08 PM |
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ok paul, is it easy to do? but if cant communicate with the megajolt how can i upload the firmware?
this is all confusing me now. feel like an old man who has never touched a pc!
i really appreciate the help guys.
rob
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COREdevelopments
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| posted on 14/4/08 at 08:17 PM |
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ok downloaded the new version looks alot more advanced. however i could not open the controller firmware. do i need this?
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paulf
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| posted on 14/4/08 at 08:25 PM |
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You will need to get the usb port set to talk to the megajolt first, it is possible as I had the same problem with one i was setting up for someone
else with the early software he worked in IT and still had problems but we did get it to work, other option is do you have access to a Pc with a
serial port on it? this would be the best option as USB converters did cause problems on early versions but once the firmware is updated then it will
solve that problem.
You need to make sure that nothing else is using the com port selected, ie no pda software or modem etc.
Paul.
quote:
Originally posted by COREdevelopments
ok paul, is it easy to do? but if cant communicate with the megajolt how can i upload the firmware?
this is all confusing me now. feel like an old man who has never touched a pc!
i really appreciate the help guys.
rob
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COREdevelopments
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| posted on 14/4/08 at 08:30 PM |
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nothing is being used on com port 7 so i am using that. i have dowloaded the latest version but cant update the cntroller firmware. i have not got use
to an old laptop. but may have to buy one by the looks of it.
thanks
rob
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paulf
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| posted on 14/4/08 at 08:32 PM |
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If you get really stuck you could post it back to me and i will upgrade the firmware, but it may be better to persevere and sort out how to do it as
postage would be about £5 each way by special delivery.I could do it to return next day so will be 3 or 4 days to sort it.
Paul.
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