[Coco] Just another peek...

[Dave Philipsen]

The SD card is currently working under NitrOS9. You can define one or 
more 'partitions' on the SD card as drives using Gary's low level driver 
which runs under the superdriver.  Right now, I have low-level routines 
which I've adapted from Gary's OS9 driver that will read and write 
sectors from a m/l program in the DECB environment.  Currently, I am 
working on getting the DE1 board to auto-boot from the SD card without 
drivewire but I haven't worked on it for awhile.

My guess is that we'll have the DE1 booting from the SD card in fairly 
short order but it could be some months as I have not found any other 
volunteers as of yet to help on the coding and my time is a little 
stretched right now.


Dave Philipsen



On 2015-10-09 13:24, Barry Nelson 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
> 
> 
> 
> Ø  On Oct 9, 2015, at 1:45 AM, Brett Gordon <beretta42 at gmail.com> 
> wrote:
> 
>>    >
> 
> Ø  That's awesome Dave!  So where exactly is this video memory coming 
> from?
> 
> Ø  ahhh.. i really want one of these now...
> 
>>    >
> 
> Ø  --
> 
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> 
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