[Coco] Run of RGB2VGA boards

[Zippster]

No.

You’re basically talking about digitizing 3 analog signals and 2 syncs, processing all the 
video data, adding scan lines, artifacts, etc, and outputting it all at twice the scan rate through a DAC.

Simultaneously.

Doing that all sequentially (MPU style) and keeping up would be quite a task, you’d need 
some ridiculous speed.

As mentioned, the parallel operation of the FPGA makes it possible.

- Ed


> On Aug 16, 2015, at 1:33 PM, Kandur <k at qdv.pw> wrote:
> 
> He was also asking about the Raspberry Pi, how about that?
> 
>> I would ask the same question about a Raspberry Pi. This computer is a step up from the Arduino and has more hardware resources, plus it is not much more expensive than the Arduino.
> 
> Kandur
> 
> Sunday, August 16, 2015, 11:04:37 AM, you wrote:
>> An arduino cannot do it. It's a matter of speed and time and sync. Even if
>> you overclock it to 1Ghz you will deal with a extremely complex sync code,
>> counting instructions to perform it at the right time, because its just a cpu
>> running code. A fpga runs paced in the edge of its multiple clocks and perfect
>> timing fitting between each step and also most important: all in parallel.
> 
>> Sent from my iPhone
> 
>>> On Aug 16, 2015, at 10:46 AM, Salvador Garcia <ssalvadorgarcia at netscape.net> wrote:
> 
>>> Not an expert on the DE-0 or the Arduino, but from what I do know of them I would assume that the Arduino can't handle this task. Hopefully I'll be corrected. :-)
> 
> 
>>> The DE-0, as such, and as I understand is an open ended device. The "program"that is loaded onto it configures is components so that it behaves a certain. For example, when it loads Gary's program for the FPGA Coco the, the DE configures it self not only as a 6809 microprocessor, but specifically as a Color Computer 3.
> 
> 
>>> On the other hand, the Arduino is a microcontroller based computer that just runs code. Of course, given enough code, any processor based product could be used to convert the RGB signals to VGA, but I suspect that the Arduino just does not have the necessary hardware resources to accomplish this task.
> 
> 
>>> I would ask the same question about a Raspberry Pi. This computer is a step up from the Arduino and has more hardware resources, plus it is not much more expensive than the Arduino.
> 
> 
>>> I hope someone else chimes in. If any of the above information is wrong I would like to corrected for the benefit of all. Salvador
> 
> 
> 
> 
>>> -----Original Message-----
>>> From: Barry Nelson <barry.nelson at amobiledevice.com>
>>> To: coco <coco at maltedmedia.com>
>>> Sent: Sat, Aug 15, 2015 11:06 pm
>>> Subject: Re: [Coco] Run of RGB2VGA boards
> 
> 
>>> I have a question, rather than a DE-0 Nano, could an Arduino Due be used to
>>> perform the video processing if software was developed to run on it? It has a 32
>>> bit processor running at 84 Mhz and is much less expensive than the DE-0 Nano.
>>> In theory it looks to me as if it might work...
> 
> 
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