Quickstart and Quick proto board
icepuck
Posts: 466
I got my quick start, GG's proto board, and GG's uSD card adapter yesterday.
Now for the dumb questions...what pins could be used for the uSD so it would compatible with most of the software that uses the sd card?
-dan
Now for the dumb questions...what pins could be used for the uSD so it would compatible with most of the software that uses the sd card?
-dan
Comments
This is what I use, the same pinouts as on the spinneret.
http://code.google.com/p/propforth/wiki/PropToSDconnection
At the time the spinneret was the only SD product that had SD, so was the "standard" we adopted. But, its a simple matter to use any set of pins, just change the assignments in the code. Most folks avoid using 28, 29, 30, and 31, thats the only "standard".
You can also solder pins to a micro SD adapter instead of a store bought card slot hardware, if you don't mind the hack look. This is how I can affort 2gig of storage on all my prop boards.
It still works even if you don't use propforth.
OBC
As pins 0-7 are most usable as Analog inputs.
On most PCB's I use pins from 8-11 else 12-15 for SD else other SPI type's
If possible reserve pins 16-23 for VGA.
I know this has been talked to death before, but I had the same questions
on interconnect building my latest GG QS board(s).
I'm aware there have been some pretty good matrices created in relation
to pin usage, but I couldn't find it very easily.
If there was ever a need for a 'sticky' or wiki topic, this would be it.
I know the pins are configurable, but sometimes it's easiest to use the
default and consensus settings.
Would anyone care to repost or mention the link again ?
jack
So, from what I've read so far it shouldn't really mater what lines get used for the uSD adaptor, as long as the software is updated to use the correct ports.
-dan