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Re: Dropping marker signals?

On Tue, Dec 28, 1999 at 07:13:40PM -0500, Tim Vanderhoek wrote:
> > problem).  V=D/T. If our robot runs on a clock (which I think it will),
> > then we know the time.  To find distance, I guess we can keep track of the
> Yes, a clock is very likely to be necessary.  If one doesn't come
> onboard with the boards they give us, then it would probably need to
> be added.

Just to finish that thought: afaik, the 6502 does not have a builtin
timer.  For the 6502 boards Malone supplies, the CPU functions off a
2MHz clock that is scaled down to 1MHz.  Presumably there is enough
leeway that this same clock could again be scaled down by more
circuitry and also used as a source of interrupts.

[clock = thing that pulses, timer = thing that counts pulses and does
 something after counting X pulses]

FWIW, by comparison, the 68HC11 has a programmable onboard timer running
off whatever clock is supplied.

Incidentally, most 6811 processors also have an 8 bit A/D converter

This is relevent for Joyce since it may or may not come into play
depending on we decide to communicate information to the software.

Signature withheld by request of author.