[Coco] Help with Nitros9 on SDC?

[L. Curtis Boyle]

Could be a problem on the 512K, yes. And level 3 does use memory differently. There are a few Coco 3 RAM test programs you can try from the Color Computer Archive:
https://colorcomputerarchive.com/search?q=test <https://colorcomputerarchive.com/search?q=test>

Try the Disto or Performance Peripherals ones.


> On Apr 11, 2021, at 1:10 PM, Don Barber <don at dgb3.net> wrote:
> 
> An interesting data point:
> 
> I tried using drivewire images instead of the sdc, thinking it might be something odd with my sdc.
> 
> This image, when booting from a DW mounted image, also failed in seemingly the same place:
> 
> https://nitros9.sourceforge.io/snapshot/NOS9_6809_L3_v030300_coco3_dw.dsk
> *but* the L2 version at
> https://nitros9.sourceforge.io/snapshot/NOS9_6809_L2_v030300_coco3_dw.dsk
> booted just fine.
> 
> As I'm reading that the difference between L2 and L3 is in the memory manager, does this suggest something odd with my 512k memory upgrade? Its a Tandy AXX-7117. Is there a diagnostic tool anyone recommends?
> 
> Thanks,
> 
> Don
>