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Discussing the Open Source FPGA Amiga Project
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 Post subject: IO for external controllers
PostPosted: Thu Aug 18, 2011 2:02 pm 
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Joined: Thu Jan 29, 2009 9:29 am
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Location: Lorraine - France
On the Replay board, there is two "IO for external controllers" connectors (in pink).

Is it will be possible to wire Psx pads on theses connectors and integer the code of Paul Willingham (or other code) into the Replay board ?

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 Post subject: Re: IO for external controllers
PostPosted: Thu Aug 18, 2011 4:08 pm 
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Posts: 197
Yes, it should be possible.


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 Post subject: Re: IO for external controllers
PostPosted: Thu Aug 18, 2011 5:31 pm 
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Location: Lorraine - France
GREAT !

Thank for your answer Yaqube !

In the future, I will better ask what it is not possible :D

More about that, maybe one day (I hope) the replay board will be able to emulate an Amstrad CPC micro computer...

But this one is more difficult to convert with Psx --> DB9, as it needs at this time to use in addition a Megadrive converter code... As I understand, I don't use it myself. In a word, there is no hardware limitation with the Replay board just logical programming of the fpga ?

What are the different voltages that can drive the board for externals stuff ?

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 Post subject: Re: IO for external controllers
PostPosted: Thu Aug 18, 2011 6:21 pm 
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Greg.0 wrote:
In a word, there is no hardware limitation with the Replay board just logical programming of the fpga ?
Yes, exactly.
Quote:
What are the different voltages that can drive the board for externals stuff ?
Generally it's 3.3V but it's possible to connect 5V signals with some sort of level conversion.


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 Post subject: Re: IO for external controllers
PostPosted: Fri Aug 19, 2011 9:08 am 
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Joined: Tue Sep 15, 2009 8:19 am
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How many milliamps does the replay board draw at peak times ?

Is there a regulator on the replay board in case my 5 volt adapter (the blue one I got with the replay board)
breaks and decides to output the wrong voltage ?

Espen


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 Post subject: Re: IO for external controllers
PostPosted: Fri Aug 19, 2011 3:04 pm 
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espskog wrote:
How many milliamps does the replay board draw at peak times ?
900 mA peak (only main board)
Quote:
Is there a regulator on the replay board in case my 5 volt adapter (the blue one I got with the replay board) breaks and decides to output the wrong voltage ?
Some components (keyboard, mouse, joysticks, video filter) are directly powered from 5V so better use a reliable power supply.


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 Post subject: Re: IO for external controllers
PostPosted: Mon Aug 22, 2011 11:01 am 
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Posts: 104
yaqube wrote:
espskog wrote:
How many milliamps does the replay board draw at peak times ?
900 mA peak (only main board)
Quote:
Is there a regulator on the replay board in case my 5 volt adapter (the blue one I got with the replay board) breaks and decides to output the wrong voltage ?
Some components (keyboard, mouse, joysticks, video filter) are directly powered from 5V so better use a reliable power supply.


Thanks. Do you know how much more it will draw (peak times) with a fully equipped daughterboard ? (You need to make a name for the board :) )

Would you say that output from a USB slot of a computer is stable as a 5V source (two in parallell) to power the replay board ?

Espen


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 Post subject: Re: IO for external controllers
PostPosted: Mon Aug 22, 2011 2:07 pm 
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espskog wrote:
Do you know how much more it will draw (peak times) with a fully equipped daughterboard?
With a mouse, keyboard and joypad it draws 2.2 Amp peak (this doesn't include any USB device which can take another 0.5 Amp and there can be three of them).

Quote:
Would you say that output from a USB slot of a computer is stable as a 5V source (two in parallell) to power the replay board ?
I wouldn't risk powering the board from an USB port.


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 Post subject: Re: IO for external controllers
PostPosted: Tue Aug 23, 2011 11:39 am 
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Posts: 104
Will there be a pin header on the daughterboard for the Ethernet pins so that I can hook up a Ethernet2WIFI adapter directly to the pin header so I can keep it all inside the MiniITX cabinet without having to use a Cat5 loop-cable from the back into the cabinet to the Ethernet2WIFI adapter ?

It would also be cool if there are some (or one) pinheaders so we can connect USB stuff inside the cabinet without looping the cabl back to the external connector.

I'm just throwing out ideas :-)


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 Post subject: Re: IO for external controllers
PostPosted: Sat Nov 05, 2011 1:51 pm 
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Joined: Thu Jan 29, 2009 9:29 am
Posts: 36
Location: Lorraine - France
espskog wrote:
It would also be cool if there are some (or one) pinheaders so we can connect USB stuff inside the cabinet without looping the cabl back to the external connector.

As I saw on the picture linked above, there is a pin header for one USB (top right). But maybe this one is only for fpga programming.
Maybe this should be possible on a daughter board.

With this IO external controllers it also should be possible to wire a real retro keyboard on the Replay Board !? And integer the code of an existing converter like the USB Keyrah or this kind of project : Atari keyboard to USB on AtariAge.

How is capable to adapt and integer these (open) codes ? Programmer of the extreme or beginners with fpga languages ?

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