A new riser?

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terriblefire
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Re: A new riser?

Post by terriblefire » Sat Sep 14, 2019 3:33 pm

Maximilian wrote:
Sat Sep 14, 2019 2:20 pm
For the price of a working A4000 without battery damage you could buy a nice second hand car over here, even for the repaired ones you can buy a car, so that isn't an option for me, also it would be quite a small market, An A2000 would be a lot cheaper but you are stuck with OCS.
The A4000 is being ReAmiga’d so this isn’t a problem anymore. They're now cheaper. Even still so long as the battery damage doesnt stop the mouse working you're ok because the RAM in the TF card will whip everything elses butt.
What about an extra (default not mounted) connector on the top or the bottom of the riser facing outwards?, like the SX1 riser has but probably with a lot less pins and a cheap connector like the IDE connector.
That way you could connect the Pi with a small adapter board that has a small CLPD on its own, would it be possible to let the TF board talk to that with more than the usual 14Mhz?
Nah.. no extra connectors. No breakouts. No options. Thats an extra support headache i dont need. Feel free to do your own version though and take this on.
Why use a compute module?, you have to bring out all the connectors you need and the cost would be much higher.
Would you need any connections that are not on the normal Pi?
Well if you want to do the normal Pi thing it already exists in the A314. I see the Pi Compute module like a CPU itself. A replacement/improvement on an PPC board for those wanting 3D graphics etc on the amiga.
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bprepared
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Re: A new riser?

Post by bprepared » Mon Sep 16, 2019 4:49 pm

terriblefire wrote:
Sat Sep 14, 2019 10:10 am
This is the project i was looking to expand on...

https://github.com/EmberHeavyIndustries/HID2AMI
The problem with integrating HID2AMI into the Riser is that it is designed to interface through the game ports to Paula directly since she handles these ports, and none of her signals go to the M/B edge connector so from what I can tell we would need reproduce her logic in a CPLD. Perhaps the better option would be a USB controller interfaced through a clockport interface (similar to Rapid Road) or a direct Zorro USB implementation (like Deneb)?

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Re: A new riser?

Post by terriblefire » Mon Sep 16, 2019 4:58 pm

bprepared wrote:
Mon Sep 16, 2019 4:49 pm
terriblefire wrote:
Sat Sep 14, 2019 10:10 am
This is the project i was looking to expand on...

https://github.com/EmberHeavyIndustries/HID2AMI
The problem with integrating HID2AMI into the Riser is that it is designed to interface through the game ports to Paula directly since she handles these ports, and none of her signals go to the M/B edge connector so from what I can tell we would need reproduce her logic in a CPLD. Perhaps the better option would be a USB controller interfaced through a clockport interface (similar to Rapid Road) or a direct Zorro USB implementation (like Deneb)?
I hadnt noticed that before but it actually makes it easier in a round about way. You can assert PUNT then put the X/Y values on the bus at the right time and there is no DAC/ADC stage involved. So the mouse values would seem more stable.

I dont mind generic USB port but the clockport is the most god awful way to do it. So zorro iii it is. We'd need to supply the driver to the OS at startup to avoid needing to hunt for drivers etc.
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bprepared
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Re: A new riser?

Post by bprepared » Fri Sep 20, 2019 3:08 pm

That was my thoughts since we have full bus access on the riser breakouts. The best I could find regarding an open source USB Zorro card was this:
http://members.iinet.com.au/~loofy/index.html
I'm not sure on the availability of the Bus Controller chip now though

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Re: A new riser?

Post by terriblefire » Fri Sep 20, 2019 3:18 pm

bprepared wrote:
Fri Sep 20, 2019 3:08 pm
That was my thoughts since we have full bus access on the riser breakouts. The best I could find regarding an open source USB Zorro card was this:
http://members.iinet.com.au/~loofy/index.html
I'm not sure on the availability of the Bus Controller chip now though
I dont see any drivers on that page.. the hardware is the easy part. Amiga drivers are horrific. I'd use an ARM CPU for USB. No point in using anything given the prices.
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bprepared
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Re: A new riser?

Post by bprepared » Mon Sep 23, 2019 8:40 pm

I can't find the source code for the drivers, but did find this, any help?

http://amiga.resource.cx/exp/thylacine

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Re: A new riser?

Post by bprepared » Mon Sep 23, 2019 8:43 pm

Ahhh... Not linked on the main page but found this after a little more digging:
http://members.iinet.com.au/~loofy/updates.html

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Re: A new riser?

Post by terriblefire » Mon Sep 23, 2019 8:49 pm

Ah thats a big help.
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