[Coco] DMA in (Nitr)OS-9 LII?

[jdaggett at gate.net]

On 23 Jul 2006 at 14:17, Joel Ewy wrote:

>   Assuming that we have a functioning DMA controller, on a daughterboard 
>   mated up to the CPU, or integrated into an FPGA GIME replacement, is 
>   there a sanctioned way for it to write into the device driver's buffer 
>   memory?  Failing this, is there an obvious hack?
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If you went with a FPGA GIME chip it would be easier to mate that with the 
MC6809/HD6309 and not the E versions. Then DMA would be easier. 

james