Creating a Mjlj App

General Topics for configuring, operating and tuning the Megajolt. Also see the <a href="http://www.autosportlabs.net/MJLJ_V4_Operation_Guide">Operation Guide</a>

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Flossie
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Joined: Wed Jan 19, 2005 4:35 am

Creating a Mjlj App

Post by Flossie »


Hi I’m very new to all this but I’m thinking of developing a C version of the software (then hopefully building an app to run it so all new users have to do is plug in and away they go.) Now I’m guessing if it was that easy it’ll been done already :-) so was wondering if any one had started this or got any ideas that may help me .

Many thanks floss

brentp
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Hi!

Post by brentp »

Hi!

We have a couple of efforts underway along that same theme. First off for me is to make a better version of the java program with an automated installer.

next, I was thinking of using a neutral widget library like GTK+ to build a configurator program which can be compiled across multiple OS platforms.

We also could use a Palm Pilot configurator, or perhaps a gameboy version? Not sure if you can get a serial port off of a gameboy.. would be neat if you could.

Best regards,
Brent
Brent Picasso
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brentp
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Ok, now I *am* intrigued.

Post by brentp »

Ok, now I *am* intrigued.

The link port on the GBA can be used as a RS232 port.

<a href="http://www.frotz.net/gbadev/cable.html" ... le.html</a>

What do you all think of a Gameboy Advance configurator program???
Brent Picasso
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Oliver Sedlacek
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Why C?

Post by Oliver Sedlacek »

What will a C version give you that Java doesn't? I've been modifying the java version myself, so I know it can be done. I added a global crank sensor adjustment as I didn't get it at exactly 10 deg BTDC. I also added a big (user friendy when bouncing a laptop on my lap) spin button to adjust the timing live on the runtime display.

brentp
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The real issue is getting a

Post by brentp »

The real issue is getting a reliable JavaComm configuration. After that it's pretty solid.

I'm also looking at creating a setup wizard that can auto-configure the JavaComm components... That will ease a lot of the installation pains.

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Flossie
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Joined: Wed Jan 19, 2005 4:35 am

"Why C?"As 1 you don't get

Post by Flossie »

"Why C?"

As
1 you don't get all the nasty com's problems
2 My machine is only a 486 so its never going to happen in java
3 the BIG one is i don't like java !!!!


Flossie
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Joined: Wed Jan 19, 2005 4:35 am

version control

Post by Flossie »

version control

Sorry if I'm of track here but i think it's on the same lines, with all the extras people are building and adding on wouldn't it be a good idea for them to get added to the main program for all to use as it seems to me people are developing the same things in essance but in differant ways which can onmly be bad.

Love the game boy idea btw !!

MartinM
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Joined: Sat Aug 27, 2005 12:08 pm

I have a few 'features'

Post by MartinM »

I have a few 'features' in my configurator. Any comments?

- very poor performance on battery power (presumably as my processor speed gets reduced, I think?)..
...takes an age to start up
...generally nasty behaviuor - if you drag the runtime window around, it never gets redrawn properly etc etc

- (battery or mains power) if I leave it open (on the config pages) but don't use it for an hour or so, when I come back my screen is completely corrupt with very small coloured blocks everywhere - looks like a nasty memory problem is lurking somewhere?

PS I agree with the post below - if anyone has any unofficial updates to the configurator, please share them via the Contributed Files section. Brent will, of course, be the keeper of the master versions!


Oliver Sedlacek
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Features?

Post by Oliver Sedlacek »

Martin,
I don't think that the 'features' you describe are attributable to the configurator program, and I certainly haven't seen anything like that. I agree that the serial comms seems to be the weakest aspect of the current system.

Jax2A
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Joined: Thu Nov 11, 2004 11:05 am

Gameboy Advance config program.

Post by Jax2A »

Brent, I'd love to have a gameboy version. I have one of my kids' old GBA already or they can be picked up used pretty cheap. I think it's a great idea. Plus GBA's serials can be linked with wireless links (they have a plug in adapter), wonder if it's possible to adapt one of the adapters to the MJLJ for wirless communication?

Hope you decide to look in to this. Thanks, Jack.
Jax2A

brentp
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There will be a gameboy

Post by brentp »

There will be a gameboy version.. I snagged a GBA off of ebay with a Flash cartridge. it will definately be my next project!

Brent
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Jax2A
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There will be a GBA version

Post by Jax2A »

Excellent Brent. Guess I need to start looking for a flash cartridge and figuring out what I need to flash it. Thanks, Jack.
Jax2A

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