[Coco] Just another peek...

[Dave Philipsen]

The wires that can be added are not a requirement.  The DE1 evidently 
neglected to connect the card insertion switch.  So if you want NitrOS9 
to automatically detect when you have removed the card or 'hot-plugged' 
a new one in then you need the wires.  I have personally run the SD card 
successfully under NitrOS9 without any wires.  In that condition it's 
best that you regard the SD card as non-removable unless you shut OS9 
down.

As I mentioned before the access to the SD card is not yet integrated 
into DECB.  The card does work in that environment but you must write 
your own 'driver'.  I have personally used code to access sectors 
(reading and writing) from the DECB environment.  In fact, I already 
have the core of a program that can manage multiple 'partitions' on the 
SD card and make them available for booting from DECB.


Dave Philipsen





On 2015-10-09 15:21, tim franklinlabs.com wrote:
> From what I understand (from the documents) the SD card only works with
>    Nitros9 and requires a wire to be added (not sure about the wire
>    thing). Everything I read states it doesn't work with DECB (yet!
>    maybe?)
> 
>      On October 9, 2015 at 1:27 PM Michael Brant
>      <brant.michael.l at gmail.com> wrote:
>      I am also interested in knowing more about the SD card access as i
>      would
>      want a stand alone setup.
>      On Oct 9, 2015 2:24 PM, "Barry Nelson"
>      <Barry.Nelson at amobiledevice.com>
>      wrote:
>      > I would want one of these, but I do not want to have to use an
>      external
>      > DriveWire server. Any updates on how the SD card access is 
> going?
>      >
>      >
>      >
>      > > Dave Philipsen dave at davebiz.com
>      >
>      > > Fri Oct 9 10:51:34 EDT 2015
>      >
>      >
>      >
>      > > It works just like the other video modes on the CoCo 3. The
>      video
>      > memory is part of the 512k memory map. In this case about 
> 288,000
>      bytes of
>      > memory are used.
>      >
>      >
>      >
>      > > Dave Philipsen
>      >
>      >
>      >
>      > O/ On Oct 9, 2015, at 1:45 AM, Brett Gordon <beretta42 at
>      gmail.com>
>      > wrote:
>      >
>      > > >
>      >
>      > O/ That's awesome Dave! So where exactly is this video memory
>      coming from?
>      >
>      > O/ ahhh.. i really want one of these now...
>      >
>      > > >
>      >
>      > O/ --
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>      >
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>      >
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>      >
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