I/O Board

https://github.com/MiSTer-devel/Main_MiSTer/wiki

Moderators: Mug UK, Zorro 2, Greenious, spiny, Sorgelig, Moderator Team

digitron
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Re: I/O Board

Postby digitron » Tue May 07, 2019 4:38 pm

When will an IO rev 5.6 component list be updated on Github?

Sorgelig
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Re: I/O Board

Postby Sorgelig » Tue May 07, 2019 10:31 pm

As soon as someone will do it.

digitron
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Re: I/O Board

Postby digitron » Wed May 08, 2019 1:34 am

Do I still need to remove pin 3 on P7 if there is a jumper for vga power on rev. 5.6?

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Re: I/O Board

Postby digitron » Wed May 08, 2019 2:16 am

delete
Last edited by digitron on Fri May 10, 2019 3:26 pm, edited 1 time in total.

digitron
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Re: I/O Board

Postby digitron » Wed May 08, 2019 6:09 pm

Can a 20% tolerance cap be in used in place of this 10% cap? https://www.digikey.com/products/en?key ... -1058-1-ND

Sorgelig
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Re: I/O Board

Postby Sorgelig » Wed May 08, 2019 6:40 pm

digitron wrote:Can a 20% tolerance cap be in used in place of this 10% cap? https://www.digikey.com/products/en?key ... -1058-1-ND

can

damopinn
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Re: I/O Board

Postby damopinn » Sat May 25, 2019 1:21 pm

I just want to share this fan I bought from aliexpress.

https://www.aliexpress.com/item/1000001291434.html

For me it runs silent on the 5v from the de10nano.
if you put your ear very close you can hear it.
and has the correct connector already.

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Newsdee
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Re: I/O Board

Postby Newsdee » Sat Jun 08, 2019 4:57 am

What would be the best way to wire a mini laptop speaker to the MiSTer without an I/O board? I have one that uses a 2 pin molex connector (so is mono sound only)

I could extract audio from HDMI for better quality but the box for that is rather bulky. This is to put inside a case with screen and speaker.

Sorgelig
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Re: I/O Board

Postby Sorgelig » Sat Jun 08, 2019 5:36 am

instead of hdmi audio extractor you ca use toslink to analog converter. they are small. You need only resistor and red LED to make a transmitter

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Re: I/O Board

Postby sawf01 » Wed Jun 19, 2019 6:52 am

Would it be ok to use a 4.7 kohms resistor at r4, 10 and 16 instead of a 4.3 kohms?

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Re: I/O Board

Postby Sorgelig » Wed Jun 19, 2019 7:21 am

sawf01 wrote:Would it be ok to use a 4.7 kohms resistor at r4, 10 and 16 instead of a 4.3 kohms?

Hard to tell. You can try and then use some high color core (for example Menu core with vga_scaler=1) and check the color ramp screen to see a linearity.

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Re: I/O Board

Postby sawf01 » Wed Jun 19, 2019 11:08 am

Will do, thank you.

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Re: I/O Board

Postby digitron » Mon Aug 05, 2019 10:03 pm

Catching up on all the good MiSTer updates, regarding the IO Board rev. 6, what specifically does the "R-2R DAC for VGA" provide?


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