My A500 "project" pics, details, build log?

[AmmoJammo]

I found a 36Mhz crystal in a box? *shrugs*
Then I found a 46Mhz crystal on a sound card? that didn't work :p

[AmmoJammo]

no, it was just a disc I made years ago, had Ed Player and a single piece of music on it "Jungle Techno"

[AmmoJammo]

Pulled one of my Wico joysticks apart... it was made 12 days after I was born :p

also looks like its barely been used!

[AmmoJammo]

Old people :p

[AmmoJammo]

Is it weird that I want to make a birthday cake for my joystick? :p

[AmmoJammo]

made this the other morning before work..


Then found that these guys copied me :p lol

http://amigakit.leamancomputing.com/catalog/product_info.php?products_id=934

except it seems they decided to use impractically short cables, for some reason?

[AmmoJammo]

Nah, you copied me. ;-)

I sold these in the school yard back in the day (1992 or so).. Made 20 finnish marks profit per unit! :-)

I was more commenting on the identical back shells :p

[AmmoJammo]

While copying stuff from CD to HDD today, using DOpus, this happened, 3 times before I gave up...

[AmmoJammo]

could be something to do with scsi termination...

the error code apparently suggests ram.. but who knows :p

need to find a decent memory testing application I think..

[AmmoJammo]

I terminated the internal HDD instead of the external CDrom... not the right way to do it..

seems to have made things worse? Instead of a red screen of death, I get a black screen, and no errors (this is while copying from the CD to HDD)

I also now have issues with WHDLoad, giving "NMI Autovector" errors, which I think is probably related...

really not sure whats going on :/

[AmmoJammo]

removed the semicolon from a few lines in the WHDLoad config file, seems to have fixed the crashing issue...

I also adjusted the HD max speed? as someone said that may be the issue too... didn't change a thing?

[AmmoJammo]

I know the "last" one is meant to be terminated... but what is first and last?

the HDD has an active terminator, and can supply it's own power to the internal terminator... while the CDrom has a single jumper for the terminator, and I wasn't sure if it supplied its own power, or got it from the scsi cable..

edit: the other thing is, I can imagine a bad terminator setup resulting in disc errors... not the whole system restarting...

[AmmoJammo]

Hmm....







*goes off and terminates everything*

:p
The A590 doesn't appear to have any termination on the board, while the A2091 (that the last diagram above was making reference to) does have..

[AmmoJammo]

no loop back?

http://amiga.resource.cx/photos/gallery/a590.jpg

internal cable just goes from the PCB to the HDD.

[AmmoJammo]

As I mentioned before, the HDD has inbuilt active termination... can either be either bus powered, self powered, or provide power to the bus...

http://ftp://ftp.seagate.com/pub/acrobat/install_guides/hawk/67471c.pdf

It's set to self powered at the moment.

[AmmoJammo]

I'm beginning to think there might be an issue with the 512k of ram on the Mega Midget Racer... :/