Committing changes to flash

eric_f · Post by **eric_f** » Wed Jul 21, 2010 5:04 pm

So I got my Megajolt all hooked up and now I'm trying to change the values in the ignition map and it doesn't seem to be working

I'm using Windows XP in a VM on my Mac with a USB-Serial adapter from Belkin. I can read the information from the MJLJ it is working most of the time. It is intermittently unable to read values, but I try again and it works. When it's hooked up to the car the RPM and Ignition Advance gauges work perfectly, so I know there is communication between them.

I can write changes sometimes. I managed to change the cranking degrees from 12 to 8, but it took a few tries before the changes would take.
If I try and make changes in the ignition map and press "Write Configuration changes" it seems to do nothing and the "Commit changes to flash" is greyed out.
I will take a look at the 232 chip and the solder joints later, but in the mean time does anybody have any other suggestions?

Thanks
-Eric

Post by **brentp** » Wed Jul 21, 2010 7:49 pm

Hi Eric,

Don't know about the XP running under a VM. have you tried other hardware configurations, such as a simpler PC environment?

eric_f · Post by **eric_f** » Wed Jul 21, 2010 9:12 pm

I will see what I can do for other environments. I have tried my work PC, but it's windows 7 with no serial port and my Belkin adapter doesn't work

Most of my family has Macs, there isn't a lot of PCs around, and all of them are Windows 7.
I will see what else I can come up with though.

Thanks

eric_f · Post by **eric_f** » Thu Jul 22, 2010 4:47 am

Ok, so I found another computer with XP and a serial port, and it works

So I guess my USB-serial adapter only half works; I'll buy another.

Thanks anyways

Post by **brentp** » Thu Jul 22, 2010 5:47 am

which belkin model is it? I recall testing one that was a bit flaky. Drivers vary so much- and much of it is out of our control. hence, the suggested T-shirt theme I came up with :_)

eric_f · Post by **eric_f** » Thu Jul 22, 2010 2:55 pm

It's the Belkin 5FU409. So I just ordered one off of ebay with a FTDI chipset.
But after I did that I remembered about Deal Extreme, I should have ordered from them.
They have them so cheap, I don't however know the chipset and if they will work or not.

Post by **brentp** » Thu Jul 22, 2010 4:10 pm

Yes, that was the belkin model that was a problem child. Business end is kind of fat and with 3 LEDs?

eric_f · Post by **eric_f** » Thu Jul 22, 2010 4:11 pm

You got it, all LED's flashing away saying they're trying to do something, but failing miserably.