[Coco] Last video I promise... :)

[Richard Goedeken]

Sorry for the slow download.  And I had just uploaded it to youtube, too :)

https://www.youtube.com/watch?feature=player_embedded&v=OhWVxK0Gfww

Probably the noise is due to the shield being ungrounded.  That will be easy
to fix.

For this test, I was using a Coco SDC and no MPI.  I think the 64 color demo
was something that was in Rainbow back in the day.  I kind of remember typing
it in. You can get this BASIC demo in the DEMOS03.DSK image in this zip file:

colorcomputerarchive.com/coco/Disks/Demos/Misc%20Demos%20(most%20coco%203).zip

Later tonight I'll take pics of the board and a screenshot of the output of
the BASIC program you gave.

Richard


On 11/28/2014 05:55 PM, Luis Antoniosi (CoCoDemus) wrote:
> now I saw the video.
> 
> First question: which program is that ? How do I get it. It's very nice for
> testing the colors.
> 
> Second, can you take a picture of your board ? bottom/top ?
> 
> There is indeed a noise band rolling. I don't get these, but my board from
> osh park DIDN"T ARRIVE YET. I takes a month to cross the canadian border.
> Dude they must put them on the back of mules. Cannot explain that.
> 
> Then check the grounding. Make sure everything is grounded from coco,
> altera and the monitor. (make sure the outer shell is grounded as I said).
> It's getting there, the image is pretty good already.
> 
> Also, do you have MPI or any other device  on your coco ? I'm always
> testing with either superIDE or CocoSDC but never mpi. Just try the coco
> without any device and check the 32 and 80 columns screens:
> 
> width 80
> 10 for n=32 to 255
> 20 print chr$(n);
> 40 next n
> 
> 
> 
> 
> Luis Felipe Antoniosi
> 
> 
> 
> On Fri, Nov 28, 2014 at 8:02 PM, Richard Goedeken <
> Richard at fascinationsoftware.com> wrote:
> 
>> Hi Luis,
>>
>> Thank you so much for designing the awesome video converter and making all
>> the
>> plans available.  I built one up yesterday and hooked it up to my Coco 3,
>> and
>> it works, but there is some noise in the video output and the colors are
>> not
>> exactly right.  Can you help me get it working?
>>
>> I uploaded a video which shows the problems very well.  It's raw mpeg2ts
>> (AVCHD) at 1080i 60hz from my video camera; the file is about 131MB.  I
>> didn't
>> want to upload it to youtube which would crush the resolution and frame
>> rate.
>>  You should be able to view it with VLC or mplayer or similar:
>>
>> http://www.fascinationsoftware.com/media/Coco3-RGBVGA.mts
>>
>> In the video, I turn the 10k potentiometer up and down to show how it
>> affects
>> the colors.  You can see that there are some rolling bands of noise in the
>> brightness values of the pixels.  And many of the colors seem to be the
>> same
>> shade.
>>
>> The test screen output (when the Coco is turned off) is perfect, so the
>> problem is with the input section.  I wasn't sure exactly which build of
>> your
>> FPGA code I should use.  And I've never used FPGA tools before, so there
>> was a
>> little bit of a learning curve in installing the tools and using them.
>> But I
>> ended up with the latest git clone from the github repo (as of yesterday),
>> and
>> I used the Quartus programmer tool to write the output_file.jic into the
>> serial eeprom loader memory.  Should I have used a different version?  Do I
>> need to compile the fpga code?  It looks from your repo that you update the
>> SOF and JIC files with every commit, so I assume that means I don't need to
>> compile the project if I don't make any of my own changes.
>>
>> Any ways, thanks again for this great product, and I hope I can get it
>> working
>> here.
>>
>> Richard
>>
>> On 11/11/2014 05:03 PM, Luis Antoniosi (CoCoDemus) wrote:
>>> It's all here:
>>>
>>> https://sites.google.com/site/tandycocoloco/rgb2vga
>>>
>>>
>>> Luis Felipe Antoniosi
>>>
>>>
>>>
>>> On Tue, Nov 11, 2014 at 7:23 PM, Mark McDougall <msmcdoug at iinet.net.au>
>>> wrote:
>>>
>>>> On 12/11/2014 2:42 AM, Luis Antoniosi (CoCoDemus) wrote:
>>>>
>>>>  Let's say: everytime you add a switch and a if condition the code
>> splits
>>>>> in
>>>>> two and the fpga seems to execute both. It's all parallel. It's hard to
>>>>> understand...
>>>>>
>>>>
>>>> Is the code public? I can attempt to explain it if you're interested?
>>>>
>>>> Regards,
>>>>
>>>> --
>>>> |              Mark McDougall                | "Electrical Engineers do
>> it
>>>> |  <http://members.iinet.net.au/~msmcdoug>   |   with less resistance!"
>>>>
>>>> --
>>>> 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
>>
>