[oopic] Re: DDELink bug and linking 2 Oopic Rs

--- In oopic@yahoogroups.com, ooPIC Tech Support <dennis.clark@...> wrote:
>
> The most certain way to make sure that the DDE link works is to have an
> ooPIC S in the loop. Otherwise the high value data and clock resistors
> need to be used. No one can explain this oddity, but it has something
> to do with the PIC 16F877a part.
>
> DLC

If you have to use 22k to 33k resistors, the cable length between the
OOPics will have to be measured in small numbers of inches. That much
resistance just won't overcome any kind of capacitance.

A conventional I2C network would have resistors in the 2.2k range.

Unfortunately, I only have a couple of S boards so I can't really test
the bug to see what is happening.

Richard

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