[Coco] CM-2 260-3212 color monitor with coco 3?

[Walter Miraglia]

Lol agreed!   So I think I will stick to composite out for now and save the 80 column display via vga  for my FPGA COCO3.  :0).   He he.  :0). 

Monday night!!!







> On Sep 19, 2015, at 7:45 PM, Dave Philipsen <dave at davebiz.com> wrote:
> 
> Unless you use some kind of comparator circuit that could trigger the intensity input to the monitor...just a thought.  Of course if you're gonna do that you might as well just hack the monitor and get into the analog circuitry that drives the color guns, eh?  :)
> 
> Dave
> 
> 
>> On 2015-09-19 18:26, Arthur Flexser wrote:
>> I think you'd get only 8 colors if you interfaced a CM-2 to a CoCo 3.
>> The R, G, and B would be either on or off, no in-between, no?
>> Art
>> On Sat, Sep 19, 2015 at 5:44 PM, Barry Nelson <
>> barry.nelson at amobiledevice.com> wrote:
>>> According to what I have found the CM-2 appears to use an RGBI interface
>>> as opposed to the CoCo 3's analog RGB. RGBI is limited to 16 colors and the
>>> signal level is TTL 0 or 5 volts digital. The CoCo 3's RGB line signals are
>>> 0 to .7 volts analog. You could construct a circuit to interface the two,
>>> but the CoCo 3 can display 64 colors and that monitor can only display 16.
>>> I suggest using another solution like my CoCo 3 to HDMI adapter cable to
>>> display on a modern display in full color. I am including the CM-2 pinout
>>> below.
>>> Pin     Name    Description
>>> 1       GND     Ground
>>> 2       GND     Ground
>>> 3       R       Red
>>> 4       G       Green
>>> 5       B       Blue
>>> 6       I       Intensity
>>> 7       RES     Reserved
>>> 8       HSYNC   Horizontal Sync
>>> 9       VSYNC   Vertical Sync
>>> > Walter Miraglia walter.miraglia at gmail.com
>>> > Just wondering.  I recently acquired a Tandy 1200 HD which came with a
>>> CM-2 colour monitor and I am wondering, if I make the appropriate cable,
>>> will this monitor work with my COCO3?
>>> >
>>> > The monitor is at my brother in law's place about 5.5 hour drive away...
>>> So wondering if it's worth the drive or if it can wait until thanksgiving
>>> in October. (Canadian here eh!)
>>> >
>>> > Cheers!
>>> --
>>> Coco mailing list
>>> Coco at maltedmedia.com
>>> https://pairlist5.pair.net/mailman/listinfo/coco
> 
> -- 
> Coco mailing list
> Coco at maltedmedia.com
> https://pairlist5.pair.net/mailman/listinfo/coco