Altera DE0-Nano MSX

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By caro

Champion (488)

caro의 아바타

07-02-2015, 16:33

OCM launched on Altera DE0-Nano.
Minimum set of periphery assembled on the daughter board
and contains modules VGA, PS / 2 KBD, SD Card, Sound and 1 Joystick.
Scheme and the firmware here.

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By st1mpy

Champion (498)

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07-02-2015, 20:34

nice, I should try that, I guess I start with wiring the vga...

By aurix72

Resident (35)

aurix72의 아바타

08-02-2015, 21:26

Excellent work, a lot of work to wire the daughter board, but really interesting Tongue

By RetroTechie

Paragon (1563)

RetroTechie의 아바타

09-02-2015, 02:42

Nice work Caro! Smile

Btw for anyone interested in copying this: I'd first have a look around to see if there's other projects out there that tack a VGA output onto a DE0-Nano. And check Altera's (excellent!) documentation + design examples too.

Why? If there's an existing 'default' VGA example or some other project that's both interesting / related / popular and uses a VGA output, you could use the same hardware to run those projects and this 1chipMSX port.

Changing a few I/O pins in an FPGA design that already works, is trivial if the hardware is an add-on board. But plugging / unplugging different external boards + cables to run different projects (when both use the same monitor to output stuff), is well... annoying.

By caro

Champion (488)

caro의 아바타

09-02-2015, 09:13

I have not found the daughter board for DE0-Nano, suitable for the realization of OCM.
Therefore did his own version.
If you have any other suggestions, let's discuss.

By st1mpy

Champion (498)

st1mpy의 아바타

09-02-2015, 12:01

the only add on board design I"ve seen was for a PC-Engine, I'll need to find the url.

By st1mpy

Champion (498)

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09-02-2015, 12:06

By JINsMac

Expert (77)

JINsMac의 아바타

23-02-2015, 18:03

Goooood~~~ Smile
Nice Work.. Caro.

well..
Can I ask about NTSC out
My NanoMSX was displayed black-white (no color)
https://flic.kr/p/oi19Xd
I dont know why.
How Can I fix it?

By caro

Champion (488)

caro의 아바타

04-03-2015, 14:18

JINsMac wrote:

Can I ask about NTSC out
My NanoMSX was displayed black-white (no color)
I dont know why.
How Can I fix it?

Using a clock signal generator on the basis of the phase accumulator
possible to obtain a frequency of 21.47727 MHz.
The result is now correctly generated signal NTSC, that allowed us to obtain a color image to TV.
New version.

By falcmax

Supporter (3)

falcmax의 아바타

08-03-2015, 19:51

Very nice job,

I think that within next week I will be able to adapt the source for my shield board for de0-nano.

I will post the modified vhdl source very soon.

If somebody it is interested for the PCB of shield or the mounted board can ask me, I have done 20 PCB.

More info can be found at hxxp://fpgatech.weebly.com/

Regards

By falcmax

Supporter (3)

falcmax의 아바타

30-03-2015, 20:12

Hi all,

Just finish the porting for my de0 nano shield.

Have a look at http://youtu.be/hCQDGWA_APU

Many thank to Caro for the excellent job.

Regards

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