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TF CD32 Riser Revision 2 Design Complete

TF CD32 Riser

Moderators: terriblefire, Terriblefire Moderator

terriblefire
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Re: TF CD32 Riser Revision 2 Design Complete

Post by terriblefire »

arkadiusz.makarenko wrote: 22 May 2020 12:36
terriblefire wrote: 22 May 2020 10:29

I will fire over the CPLD firmware.. Its very basic and just passes PUNT via the CPLD at this stage.
Great.

What cpld do I need 144?
and if you had some time could you tell me what resistors I need to change/fit to get video out working?
CPLD is a XC9572VQ64

All the resistors that are there need to come off and 3 0R resistors need to go on.. i'll post a picture of what to change later.
———
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
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arkadiusz.makarenko
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Re: TF CD32 Riser Revision 2 Design Complete

Post by arkadiusz.makarenko »

I redone some stuff in amiga.c to make sure we don't miss any depressed keys. Works ok. I haven't noticed any issues on Doom or Pinball Dreams (and Amiga Test Kit)
Need to still test keyboard reset.

PS.
Code is dirty and inefficient, but works.

EDIT.
CPLD in place I even didn't know that I still have 4 spare ...
keyboard reset works ok.

I still haven't managed to crash either cd32 or ARM ... :)
Do not trust people. They are capable of greatness.
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wairnair
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Re: TF CD32 Riser Revision 2 Design Complete

Post by wairnair »

Hi guys,

Will this riser support VGA out or "just" DB23?

Thank you
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arkadiusz.makarenko
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Re: TF CD32 Riser Revision 2 Design Complete

Post by arkadiusz.makarenko »

wairnair wrote: 23 May 2020 07:22 Hi guys,

Will this riser support VGA out or "just" DB23?

Thank you
DB23 only.
Do not trust people. They are capable of greatness.
~ Stanislaw Lem
terriblefire
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Re: TF CD32 Riser Revision 2 Design Complete

Post by terriblefire »

I was on the fence for the VGA vs DB23 but most people just wanted DB23.

It would be the same thing at a signal level anyway.
———
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
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Re: TF CD32 Riser Revision 2 Design Complete

Post by matt020 »

By going with DB23, we then have to add a buffered RGB --> VGA adapter anyway.
Could buffers be added and then a VGA 15 pin connector be offered. Would save the need for an additional adapter....
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Re: TF CD32 Riser Revision 2 Design Complete

Post by arkadiusz.makarenko »

matt020 wrote: 23 May 2020 12:38 By going with DB23, we then have to add a buffered RGB --> VGA adapter anyway.
Could buffers be added and then a VGA 15 pin connector be offered. Would save the need for an additional adapter....
It is open source project. Anyone can to modify it, if they wish.
Do not trust people. They are capable of greatness.
~ Stanislaw Lem
terriblefire
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Re: TF CD32 Riser Revision 2 Design Complete

Post by terriblefire »

matt020 wrote: 23 May 2020 12:38 By going with DB23, we then have to add a buffered RGB --> VGA adapter anyway.
Could buffers be added and then a VGA 15 pin connector be offered. Would save the need for an additional adapter....
Im considering a buffer anyway but i'm not going to do any converters. Too many things already on my plate.
———
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
matt020
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Location: West Australia

Re: TF CD32 Riser Revision 2 Design Complete

Post by matt020 »

terriblefire wrote: 23 May 2020 14:43 Im considering a buffer anyway but i'm not going to do any converters. Too many things already on my plate.
Yeah I probably worded that poorly, I meant the buffers and 15 pin connector only...
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Re: TF CD32 Riser Revision 2 Design Complete

Post by terriblefire »

I think given that i'm going to pull the video of EXT_A[RGB] it probably wise to buffer. What i'll end up with is buffered DB23 most likely.
———
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."

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