[Coco] MC10 guys feeling left out of the DIY discussion?

[Steve Batson]

Will it be able to run MC-10 basic and binary programs?

On Jul 18, 2015, at 4:46 PM, Darren A <mechacoco at gmail.com> wrote:

> On Sat, Jul 18, 2015 at 4:32 PM, S Klammer wrote:
> 
>> Yet Another Masterpiece!
>> 
>> What other capabilities have you incorporated into your MC-11?  Enhanced
>> sound?  Enchanced usage of the 6847 for more graphics capabilities over the
>> MC-10?  It looks to be a drop in replacement into a MC-10...
>> 
>> It looks like my MCX128 has been made redundant :)
>> 
>> 
> 
> The MCX128 is still a great option when using an MC-10.
> 
> The MC-11 is smaller than an MC-10 (4.3 by 3.9 inches). The prototype board
> was designed to fit in a Serpac A31 case <http://www.serpac.com/a31.aspx>.
> I would actually prefer just a pair of acrylic plates, but don't have any
> means to produce those.
> 
> No changes have been made to the sound capabilities.
> Improvements to video include:
> 
> 1. Composite output instead of RF.
> 
> 2. Incorporates the colorburst circuit found in the CoCo 2 to produce the
> desired NTSC artifact colors.
> 
> 3. Allows full use of the CG6 and RG6 graphics modes (no more wrap around).
> 
> 4. The Semigraphics-6 mode can now use all 4 colors of each color set
> (something a CoCo cannot do). The old behaviour of producing the vertical
> stripe characters has been preserved as a legacy mode.
> 
> 5. You can change the base address of video RAM to any of the four 8K
> boundaries in the 32K SRAM.
> 
> 6. The FS* signal from the VDG has been connected to the CPU to provide a
> Vertical Sync interrupt.
> 
> 7. The HS* signal from the VDG has been connected to the Pulse Accumulator
> Input of the CPU. This makes horizontal sync interrupts possible and
> provides an 8-bit hardware register which can act as a scan-line counter.
> 
> 
> - Darren
> 
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