🚀 go-pugleaf

On 19 Nov 1995 00:49:29 GMT Shelly R. Rodewald (srrodewa@eclat.uccs.edu) wrote:
> Marc 'Nepomuk' Heuler (marc@aargh.incubus.sub.org) wrote:
> : In article <486ur1$hpk@unidhp.uni-c.dk>, Rask Lambertsen writes:

> : > 1) Fast - at least 115300 baud.
> : > 2) Should work on 7MHz 68000.
> : > 3) Easy to built, even for those not too experienced in hardware hacks.
> : > 4) Cheap.
> : > 5) Should be installable in A500/A600 as well as A1000/A2000/A3000/A4000.

> : With respect to 5) I guess the only two ports that all machines share are
> : the serial and the parallel port.

>   You forgot the external disk drive port.  It is used for a networking
> program (commercial) and provides very fast transfers.
>   AT needs to revise the chipset so that the serial port works like the
> disk drive -- DMA direct to memory!  No 16 byte buffers, no mucking with
> interrupts, Just blast the data to memory.  With clever software, an adaptor
> card could be made to plug into the disk drive port, and use the built in
> DMA that is already used for the disks.  How about it???

I think it is a good idea to use the floppy port, but it is not easy:

Start and stop bits.

Unknown DMA lengths (how do we know how much to transfer?)

Anybody, please help.

--
Regards,

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| Rask Ingemann Lambertsen       | E-mail: gc948374@gbar.dtu.dk            |
| Amiga GNU CC README maintainer | WWW: http://srv2.gbar.dtu.dk:8001/Rask/ |
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