1 Feb
2012
1 Feb
'12
6:04 p.m.
On 2/1/2012 6:53 PM, Chuck Guzis wrote:
On 1 Feb 2012 at 18:21, Jim Brain wrote:
Yes, but I was wondering if there was an even less involved solution.
On the 64, the decoded IO at the user port makes this a trivial task,
and I'm not sure if the AppleII has a serial card or not.
JIm
--
Jim Brain
brain at jbrain.com
www.jbrain.com
Barring implementation of 65SPI on a CPLD, is
there a quick-n-dirty
way to wire up a SPI-based module to an Apple II/II+/IIe? I'm looking
for a temp solution, while I design a Apple II board with a correct
interface. Something that doesn't require any soldering would be
grand (bit banging the SPI via some IO pins, Using the DSR/DTR/RTS
pins on the RS232 (if that can be done...), etc.
Maybe I'm not understanding
this, but just about any small MCU with a
sufficient number of pins implements SPI ; most have UARTs on board
and so could serve as a cheap-and-dirty bridge.
What am I missing?
--Chuck