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Atari coding BBS
| Re: DMA and SSI |
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Posted by: Patrice Mandin
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Jun,07.2006-19:09
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DMA registers on host port only means the DSP can receive/send stuff to/from host using DMA, instead of having the CPU doing it.
Atari did not put an extra DMA device to do this, and the only device present in Falcon that could do this DMA transfer is the Blitter.
This is not very useful if you send a command+parameter through host port, and waiting the DSP to send you the result.
But if you want so send big chunks of datas, then the Blitter could help you freeing CPU. But even in this case, the Blitter is still clocked at the bus speed (16,20 or 25 depending if you have modified the bus clock).
Whereas an accelerated CPU could be clocked much higher, and may achieve higher transfer rates.
I should really start writing this DSP audio driver for SDL, to play with SSI/DMA :-).
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Topic
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Posted by
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Date
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DMA and SSI
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mikro
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May,31.2006-22:39
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Re: DMA and SSI
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mikro
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May,31.2006-22:43
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Re: DMA and SSI
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mikro
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Jun,01.2006-01:26
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Re: DMA and SSI
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gwEm
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Jun,06.2006-09:58
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Re: DMA and SSI
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mikro
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Jun,06.2006-15:25
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Re: DMA and SSI
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earx
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Jun,06.2006-19:57
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Re: DMA and SSI
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mikro
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Jun,06.2006-23:30
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Re: DMA and SSI
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earx
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Jun,07.2006-08:57
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Re: DMA and SSI
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mikro
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Jun,07.2006-16:09
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Re: DMA and SSI
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Patrice Mandin
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Jun,07.2006-19:09
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Re: DMA and SSI
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mikro
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Jun,07.2006-23:02
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What's the anti-troll code?
That's your personal code to be able to add comments and messages on the dhs.nu site.
Don't have a code or forgot it? Fix it here.
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