Josef, I normally bit-bang SPI because I run across so many devices that
have different output formats that don't fall on convenient 8-Bit
boundaries. I also normally use the related Port C pins for SPI but this
robot project is a special case. I prefer the modular approach but I may
still use a bus-based design with Ports D and E as the data bus and control
lines. As far as using Port E for SPI chip-selects, I need/want more than 3
selects right now but this could change...

   - Tom

At 04:44 AM 5/6/01 -0400, Josef wrote:
>Personally I would preffer using RC3-5 for SPI and RE0-2 as chip selects,
this way you can take advantage of the built-in 5MHz SPI. If you need to
interface some odd non-standard chip, just switch the SPI off and do
bit-banging.
>
>Josef
>
I wrote:
>>   PortC = RS232, 5 SPI chip selects, Left Tach Input (TMR1).
>>   PortD = Dual Motor control for the H-Bridge PIC, 4 spares.
>>   PortE = SPI


------------------------------------------------------------------------
Tom Handley
New Age Communications
Since '75 before "New Age" and no one around here is waiting for UFOs ;-)

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