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Old 05-21-2012, 12:38 PM   #31
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Default Re: Raspberry PI
Hey JJ, your Pi has the 26pin GPIO header... Do you plan to use it?
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Old 05-21-2012, 02:44 PM   #32
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Default Re: Raspberry PI
Quote:
Originally Posted by bloodline View Post
Hey JJ, your Pi has the 26pin GPIO header... Do you plan to use it?
had no plans to, to be honest. Not my field of interest. Are they not all going to have them then ?
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Old 05-21-2012, 03:47 PM   #33
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Default Re: Raspberry PI
Quote:
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had no plans to, to be honest. Not my field of interest. Are they not all going to have them then ?
When the boards were going to be self produced, only the first 10,000 would have the GPIO headers... Now RS and farnell are manufacturing I don't know... I'm hoping my Pi will have the header as I want to play with it
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Old 05-28-2012, 11:49 PM   #34
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Default Re: Raspberry PI
What would be the fastest I/O for data between an Amiga and the PI? It seems like it's still the unanswered question I come to when I consider any microcontroller or mini-computer such as the PI.

I'd like to leverage the power of the PI in conjunction with an old Amiga somehow? Anybody have any ideas?

Would it be like a PCMCIA<->GPIO adapter or perhaps a trapdoor edge connector <-> GPIO? I've also considered the clock port but I haven't been impressed with what I've seen with the Subway USB speeds.

Let's brain storm!

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When the boards were going to be self produced, only the first 10,000 would have the GPIO headers... Now RS and farnell are manufacturing I don't know... I'm hoping my Pi will have the header as I want to play with it
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Old 05-29-2012, 12:03 AM   #35
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Default Re: Raspberry PI
mmmh...my raspberry arrived, installed the Linux image from website and the USB mouse is not recognised...argh!
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Old 05-29-2012, 12:09 AM   #36
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Default Re: Raspberry PI
Make sure you have enough power. Seems that is the most common issue I've heard with the PI. Mine still hasn't arrived so I can't say from experience though.

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mmmh...my raspberry arrived, installed the Linux image from website and the USB mouse is not recognised...argh!
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Old 05-29-2012, 12:21 AM   #37
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Default Re: Raspberry PI
Got myself one of these:

http://www.ebay.co.uk/itm/Micro-USB-...ht_1221wt_1397

And the USB mouse does not work. Tried another one and still the same. Bah!
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Old 05-29-2012, 12:27 AM   #38
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Default Re: Raspberry PI
You could try running the mouse through a powered hub and see if that is the issue after all.

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Got myself one of these:

http://www.ebay.co.uk/itm/Micro-USB-...ht_1221wt_1397

And the USB mouse does not work. Tried another one and still the same. Bah!
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Old 05-29-2012, 12:42 AM   #39
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Default Re: Raspberry PI
Quote:
Originally Posted by nyteschayde View Post
You could try running the mouse through a powered hub and see if that is the issue after all.
If it works via the powered USB then it means that the psu is pants?
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Old 05-29-2012, 12:44 AM   #40
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Default Re: Raspberry PI
Not necessarily but I've heard everything from the leads, the contacts, the sometimes even the day of the week (jk) dropping a tenth of a volt and causing things to not function.

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If it works via the powered USB then it means that the psu is pants?
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Old 05-29-2012, 12:51 AM   #41
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Default Re: Raspberry PI


I AM really impressed...worth the money!
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Old 05-29-2012, 12:55 AM   #42
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Default Re: Raspberry PI
I take it the powered hub worked?

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I AM really impressed...worth the money!
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Old 05-29-2012, 12:56 AM   #43
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Default Re: Raspberry PI
Nope I haven't got one I'll have to do that at work...I'll let you know, thanks for the suggestions.
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Old 05-29-2012, 06:46 AM   #44
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Default Re: Raspberry PI
Slightly O/T.

Can the PI be rigged as an accelerator?

What's to stop somebody wiring up the accelerator port in an A1200 to the Pi via USB (or faster bus - obviously may need some sort of breadboard inbetween) and passing the instructions to an ARM 68000 series emulator such as http://notaz.gp2x.de/cyclone.php (this emulator is 68000 only)?

Obviously FPGAs are better for the purpose but technically I can't see too much trouble apart from:
  • Conversion between the trapdoor connector to USB serial will likely need custom PIC work.
  • Custom software glue to pass the USB instructions ARM side to the relevant emulator API and return results.
  • Emulator may need modification for access to the Amiga chipset and chip ram, as opposed to ARM ram, via USB
It may be a tad slow... and now I've written this post probably complicated.
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Old 05-29-2012, 10:21 AM   #45
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Default Re: Raspberry PI
That or using the PI like a bridge board or how about as a video card? All these things have crossed my mind. I'm a software dev and love to sit down with a good hardware dev for a day or two to know more about things like PICs and working with and wiring up a GPIO.

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Originally Posted by brownb2 View Post
Slightly O/T.

Can the PI be rigged as an accelerator?

What's to stop somebody wiring up the accelerator port in an A1200 to the Pi via USB (or faster bus - obviously may need some sort of breadboard inbetween) and passing the instructions to an ARM 68000 series emulator such as http://notaz.gp2x.de/cyclone.php (this emulator is 68000 only)?

Obviously FPGAs are better for the purpose but technically I can't see too much trouble apart from:
  • Conversion between the trapdoor connector to USB serial will likely need custom PIC work.
  • Custom software glue to pass the USB instructions ARM side to the relevant emulator API and return results.
  • Emulator may need modification for access to the Amiga chipset and chip ram, as opposed to ARM ram, via USB
It may be a tad slow... and now I've written this post probably complicated.
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