[Coco] Nitros9 boot fails with HDB DOS in rompak

[Charlie Pelosi]

I loaded HDB-DOS from tape (ipod) and the Nitros9 images works fine with 
DW4.
I am able to load up the arcade pack and start Thexder.

So it can only be the rompak. I checked Q and CART like Ken suggested and 
they are tied together.
I checked for continuity from each leg of the ROM to the card edge. 
Everything looks good.

Here is the rompak PCB
http://flic.kr/p/gx3gDR
http://flic.kr/p/gx3Csn

Once again with the rompak RSDOS stuff works great.
Nitros9 hangs at i2xoC during boot.

Anyone have any clue as to what could be going on that would make the rompak 
prevent Nitros9 from starting?

Thanks for the help so far!




--------------------------------------------------
From: "Ken H." <dragon.atv at gmail.com>
Sent: Thursday, October 10, 2013 10:02 AM
To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
Subject: Re: [Coco] Nitros9 boot fails with HDB DOS in rompak

> Charlie ,
> When a Pak connects the cartridge port lines Q (#7) and CART (#8) , the 
> Pak
> will auto start.
> You need to verify that these lines are connected.
>
> If you turn the rom pak upside down, the CART track would be the fourth
> from the left (out of 20 tracks in each side).
> The first three tracks are missing on some rom paks, so usually the first
> track will be the CART track.
>
> The Q track is in the same position in the opposite (top) side of the rom
> pak.
>
> When I had this problem, HDBDOS seemed to boot OK, but the WIDTH command
> was not recognized (i.e. WIDTH 40 caused a syntax error), and NitrOS9 
> would
> not boot.