24 Apr
2012
24 Apr
'12
8:50 a.m.
On Apr 24, 2012, at 11:28 AM, Alexandre Souza - Listas wrote:
It is indeed (it's using a similar technique to a lot of cheap serial
port PIC programmers), but my question is more because CTS is usually
fixed as an input on serial ports. It looks like it's driving the CLK
line on the SD card here, which I find puzzling.
I wouldn't mind taking a gander at the Dreamcast schematics, though.
- Dave
How does it
use CTS as the clock line? Can that be repurposed as
an output in the Dreamcast hardware? Perhaps it's answered in the
Russian, but my Russian is limited to a three-year-old's vocabulary.
AFAIK, this serial port is bitbanged...but I don't have that much info. If you
wish, I have the schematics of the mainboard :)