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Author Topic: FPGA Replay Board  (Read 820885 times)

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Offline mikej

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Re: FPGA Replay Board
« Reply #1004 on: October 06, 2011, 09:24:24 AM »
Quote from: Methanoid;662654
Anybody who'd read this thread would probably know that about 200 people have already indicated some months ago that they wanted a board. But Mike won't confirm who is "on the list" so we get another hundred odd posts of people having to ask if they are "on the list".

Come on Mike, publish the list or at least email people to tell them what number they are on the list ;)


I have around 42 boards available. I am not sure how many are working yet.
I also want to make sure the software/firmware is completely ready - it isn't yet but it's good enough for techy people who are happy to do future upgrades.

I have a list of people who have expressed an interest.
I'll start emailing people shortly - in the order people expressed an interest - and see who actually wants one.

I realize it is frustrating, and it is taking too long.

The good news is these were made at a volume factory in China, so I can order more at any point now.
Cheers,
MikeJ
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Offline mikej

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Re: FPGA Replay Board
« Reply #1005 on: October 06, 2011, 02:45:17 PM »
The changes to b02 over b01 have been verified.
You can plug the DVI connector in at the same time as the audio.
The board powers off correctly even when back-powered from the TV.

Audio, DVI, Analog, Composite (with selectable luma trap), SVHS are all performing very well - in fact the analog picture and sound quality are excellent.

Memory testing on-going....
/MikeJ
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Offline billt

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Re: FPGA Replay Board
« Reply #1006 on: October 06, 2011, 03:37:40 PM »
Quote from: mikej;662659
I realize it is frustrating, and it is taking too long.


I think we should all be impressed at one person doing all of this. I've had lots of ideas I've never been able to bring to completion, I wish I could finish something like you, regardless of how long.
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Bill T
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Offline freqmax

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Re: FPGA Replay Board
« Reply #1007 on: October 06, 2011, 03:51:22 PM »
Quote from: mikej;662659
I realize it is frustrating, and it is taking too long.


In comparision with other projects this one is at lightning speed. And there is actually hardware to deliver.
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Offline Hattig

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Re: FPGA Replay Board
« Reply #1008 on: October 06, 2011, 04:49:26 PM »
Quote from: mikej;662681
The changes to b02 over b01 have been verified.
You can plug the DVI connector in at the same time as the audio.
The board powers off correctly even when back-powered from the TV.

Audio, DVI, Analog, Composite (with selectable luma trap), SVHS are all performing very well - in fact the analog picture and sound quality are excellent.

Memory testing on-going....
/MikeJ


Excellent news Mike! Can't wait!

Back-powered? Can the TV supply power to the board over HDMI/DVI so we don't need a separate power brick?
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Offline nicholas

Re: FPGA Replay Board
« Reply #1009 on: October 06, 2011, 04:56:06 PM »
Quote from: mikej;662659
I have around 42 boards available. I am not sure how many are working yet.
I also want to make sure the software/firmware is completely ready - it isn't yet but it's good enough for techy people who are happy to do future upgrades.

I have a list of people who have expressed an interest.
I'll start emailing people shortly - in the order people expressed an interest - and see who actually wants one.


Please put me down for at least one.
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“Een rezhim-i eshghalgar-i Quds bayad az sahneh-i ruzgar mahv shaved.” - Imam Ayatollah Sayyed  Ruhollah Khomeini
 

Offline joemango

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Re: FPGA Replay Board
« Reply #1010 on: October 06, 2011, 05:58:52 PM »
I wonder what Mick Tinker is thinking about all this....
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Waiting patiently for my FPGA Replay.
 

Offline mikej

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Re: FPGA Replay Board
« Reply #1011 on: October 06, 2011, 06:40:35 PM »
Quote from: Hattig;662698
Excellent news Mike! Can't wait!

Back-powered? Can the TV supply power to the board over HDMI/DVI so we don't need a separate power brick?


Actually pretty much so, but by accident. The Chrontel DAC has, what I would consider a bug, in that the DVI termination voltage can pass back through the DAC and keep the 3.3V supply alive enough such that the card does not power down.
I have fixed it now.
/MikeJ
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Offline RMK305

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Re: FPGA Replay Board
« Reply #1012 on: October 06, 2011, 06:43:47 PM »
He probably doesn't even know this project exists and is therefore thinking absolutley nothing of it.
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Offline amigadave

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Re: FPGA Replay Board
« Reply #1013 on: October 06, 2011, 07:36:52 PM »
Anyone who is not sure about purchasing an FPGA Arcade Replay Board yet and wants to see one running first should attend the AmiWest 2011 Show in a bit over 2 weeks, as I will have one running at my display table at the show.
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Offline espskogTopic starter

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Re: FPGA Replay Board
« Reply #1014 on: October 07, 2011, 08:22:50 AM »
Quote from: mikej;662681
The changes to b02 over b01 have been verified.
You can plug the DVI connector in at the same time as the audio.
The board powers off correctly even when back-powered from the TV.

Audio, DVI, Analog, Composite (with selectable luma trap), SVHS are all performing very well - in fact the analog picture and sound quality are excellent.

Memory testing on-going....


Nice!!!
Which steps are needed to make my B01 a B02 (apart from the audioconnector which is ok since you moved it a few clicks to the right already), and can they be done by ourselves or will they require some new parts ?

Espen
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Offline espskogTopic starter

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Re: FPGA Replay Board
« Reply #1015 on: October 07, 2011, 08:24:58 AM »
Quote from: amigadave;662726
Anyone who is not sure about purchasing an FPGA Arcade Replay Board yet and wants to see one running first should attend the AmiWest 2011 Show in a bit over 2 weeks, as I will have one running at my display table at the show.


Cool. You got hold of one from Mike already ? That's pretty quick :)
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Offline mikej

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Re: FPGA Replay Board
« Reply #1016 on: October 07, 2011, 09:28:24 AM »
Quote from: espskog;662788
Nice!!!
Which steps are needed to make my B01 a B02 (apart from the audioconnector which is ok since you moved it a few clicks to the right already), and can they be done by ourselves or will they require some new parts ?

Espen


None, the boards are completely compatible for firmware.
The only difference is the luma trap on composite out is driven from an extra line on the ARM controller (so turning it off will have no affect on B1). The trap can be disabled by removing a component if required.

The power-on control has been improved, but this is only an issue when you use DVI later.

All the other changes are layout related to improve production.
Best,
Mike
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Offline freqmax

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Re: FPGA Replay Board
« Reply #1017 on: October 07, 2011, 02:10:08 PM »
Quote from: mikej;662792
All the other changes are layout related to improve production.


Any list of such changes? (curious ;) )
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Offline espskogTopic starter

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Re: FPGA Replay Board
« Reply #1018 on: October 07, 2011, 02:26:10 PM »
Quote from: mikej;662792
None, the boards are completely compatible for firmware.


When will the new firmware be available for download ?

Quote

The only difference is the luma trap on composite out is driven from an extra line on the ARM controller (so turning it off will have no affect on B1). The trap can be disabled by removing a component if required.


What will the lumatrap do for the image if I disable it ?

Quote

The power-on control has been improved, but this is only an issue when you use DVI later.


My board tends to now power-off when i physically switch it off with the on/off switch. As this is not a problem for me, I am just curious what the cause is and what the fix was on the B02 board to handle it.

//Espen
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Offline mikej

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Re: FPGA Replay Board
« Reply #1019 from previous page: October 07, 2011, 02:30:33 PM »
When will the new firmware be available for download ?
>> when it works...


What will the lumatrap do for the image if I disable it ?
>> For composite only, disabling luma trap can give slightly sharper picture but at risk of additional color distortion.

My board tends to now power-off when i physically switch it off with the on/off switch. As this is not a problem for me, I am just curious what the cause is and what the fix was on the B02 board to handle it.

> backfeed from DVI receiver through DAC to 3V3 supply rail. Addition of reset generator from main 5V supply line feeding DCDC enable.
/Mike
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