#158653 - SoLo2 - Sun Jun 15, 2008 9:56 pm
Hello!
I am a bit surprised that the so big
SDHC cards must be read through a
little bus with bus commands.
OK! This makes the thing more
portable and compatible with other
devices.
I am programming in ARM assembler
and wish to read/write sectors through
the Super Card DS ONE. HOW?
I don't know if I could link the existing
"C" drivers. I could well translate this
code to ARM assembler. Sadly, I
have seen already 2 drivers in "C"
with different bus commands... maybe
it were for different Super Cards types.
What I would need, then is the bus
control codes used by the SuperCard
to read/write the SD flash memories.
Does anybody know were these
bus codes are documented?
BTW. isn't there a faster, easier way
using DMA block transfers or simple
registers with memory mappings?
Wasn't the GBA SC SD like this?
Thanks,
SoLo2
_________________
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Visit:
http://thebitsclub.tripod.com
http://biis.tripod.com
I am a bit surprised that the so big
SDHC cards must be read through a
little bus with bus commands.
OK! This makes the thing more
portable and compatible with other
devices.
I am programming in ARM assembler
and wish to read/write sectors through
the Super Card DS ONE. HOW?
I don't know if I could link the existing
"C" drivers. I could well translate this
code to ARM assembler. Sadly, I
have seen already 2 drivers in "C"
with different bus commands... maybe
it were for different Super Cards types.
What I would need, then is the bus
control codes used by the SuperCard
to read/write the SD flash memories.
Does anybody know were these
bus codes are documented?
BTW. isn't there a faster, easier way
using DMA block transfers or simple
registers with memory mappings?
Wasn't the GBA SC SD like this?
Thanks,
SoLo2
_________________
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Visit:
http://thebitsclub.tripod.com
http://biis.tripod.com