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

[AmmoJammo]

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

[Lurch]

Young Whipper-snappers!

Get off my lawn ....

Gunna get yah, where's my zimmer frame...

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

Would have said in the past but my Amigacentric tendencies say why not? :-)

[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?

[Jope]

Then found that these guys copied me :p lol

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! :-)

[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

[djos]

Lol, nice work anyway AJ. :cool:

[AmmoJammo]

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

[djos]

Not ideal, where the file names too long?

Btw, if you are using SCSI make sure you get a proper external active terminator and at least a dual shielded SCSI Cable - back in the 90's when I was a Macintosh Tech, I solved 98% of stability issues by replacing the customers cheap a$$ SCSI cables with decent ones and using real terminators instead of the built in Termination on everything from Scanners to external Hard Drives.

[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?

[djos]

Only The last scsi device in the chain should be terminated, I also found (back in the day) that making the closest device to the controller say #2 and the next device in the chain say #3 helped a lot to.

[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...

[djos]

I've seen scsi cause all sorts of random crashing and data corruptions.

If your cd rom is physically last in the chain, then only it should be terminated and have the highest device Id number.

[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..

[djos]

Yeah that all looks good - only thing to consider is, is the the HDD part of a single chain or is it on it's own internal chain.

You can tell by the cable coming from the controller, if it loops back to the PCB it's likely that to cut costs there is a single chain and the only thing to terminate is the external device.