[Coco] NitrOS9 Boot Help

[Boisy Pitre]

That is exactly the problem. I sent out several cartridges that I had made without having cut the trace to pin 8, and Vincent bought one of these.

Vincent, as a test, please put a piece of tape over pin 8 on the cartridge edge connector. Then plug it in and see if it works. It should. I would then recommend removing the tape and using an exacto knife or razor blade and carefully cutting the trace that goes to that pin.

Boisy Pitre
coco at toughmac.com



On Apr 11, 2015, at 1:38 PM, Al Hartman <alhartman6 at optonline.net> wrote:

> Autostart is probably enabled in the cart. Someone had a problem with this last year, or the one before and cutting the autostart trace in the cart fixed it.
> 
> -[ Al ]-
> 
> -----Original Message----- From: Bill Pierce via Coco
> 
> I can't understand how HDBDOS being on a rom cart in a Coco 3 would matter.... something is not right in that cart!!!
> I have HDBDOS 1.4 DW in rom and have no such problems.
> On a Coco 3, ROM is copied to RAM when BASIC initiates as that's how Super Extended Color BASIC patches into ECB/DECB. The same goes for HDBDOS when it's present. You should be able to change the offsets regardless of type of HDBDOS (rom, bin, or cas). Of course this is not true on a Coco 1 or 2. But a Coco 3 is ALWAYS in RAM mode unless switched by software.
> 
> On my Coco 3, I run a menu system on bootup that allows me to set the offsets for various sizes of VHD partitions (or none) as well as boot several different incarnations of NitrOS9.
> 
> Oh, and sorry about the typos in the POKEs. My AOL email client is always loading ads and when it does, it misses keystrokes while ads are loading :-(
> 
> 
> Bill Pierce
> "Today is a good day... I woke up" - Ritchie Havens
> 
> 
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