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Old 09 August 2018, 12:24   #21
meynaf
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Wouldn't an ordinary GPU be more efficient and cheaper ?
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Old 09 August 2018, 14:38   #22
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meynaf, it would in some ways, a full GPU with OpenGL/ES2 acceleration perhaps.

However you'd also need much more complex drivers, and it would do nothing to speed up CPU side floating point calculations.

I put the alternative DSP out there just as an idea/example.
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Old 09 August 2018, 14:55   #23
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Originally Posted by AJCopland View Post
(...) it would do nothing to speed up CPU side floating point calculations.
Neither would a DSP ?
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Old 09 August 2018, 18:18   #24
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I mean like the Atari Falcon demos from earlier in the thread.
It's much easier to put a chunk of data at a memory location, tell the dsp to do something with it and use the results than it is to do the same via a GPU.

Obviously on PC with an API like OGL/DX/etc it's not that hard.
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Old 11 September 2018, 02:48   #25
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A much better solution might be something like the dsPIC33EV256GM102T-I/SO, which you can get for less than $4 (3 GBP) in single quantities, is available in an SOIC-28 form factor, is 5 volt tolerant (runs directly on 5V), has 256KB ECC Flash, and 16KB RAM on-die, and runs at up to 70MHz.

In theory, this could be connected to a clockport.

Further details on practical applications at https://hackaday.com/tag/dspic33/

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Old 21 September 2018, 09:33   #26
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Originally Posted by redblade View Post
It started in ST Format issue 74, I have the first 2 issues in the zone
Had a little bit of a read in my lunch yesterday. Looks entertaining enough, so I grabbed scans of all 6 parts and I've stuck them in The Zone! if you (or anyone else) is interested
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