Re: DMA successes with Verilog

From: Luke Crook <luke_at_balooga.com>
Date: Tue, 12 Jun 2018 14:26:54 -0700
Message-ID: <CADtPBF0MZDiqRNvhd6SjcFiar=sevL09CHuiC=d9y8U4ubZEPg@mail.gmail.com>
On Tue, Jun 12, 2018 at 14:13 Mia Magnusson <mia@plea.se> wrote:

> Den Tue, 12 Jun 2018 18:59:54 +0100 skrev smf <smf@null.net>:
> > Reminds me of the 90's when I started sketching out a DMA cart for
> > the C64 using a PC parallel port and a load of 74LS (buffers for the
> > address and data & then something more clever that waited for the bus
> > to be available before firing everything).
>
> I guess that the chances of getting any such setup to work is rather
> high.
>
> At least the parallell port on an Amiga can only in theory
> supply data at 700kbyte/sec so writing from another computer to the C64
> wouldn't even need hand shaking if picture is disabled so there
> wouldn't be a
>
> > I'm not aware of a decent remote debugger for a real c64 still.
>
> That is an interesting use of the DMA mode.
>


This cart allows a remote computer to directly read/write to the C64's RAM
via USB.

https://hackaday.io/project/388-c64-flash-cart





>
Received on 2018-06-13 00:01:48

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