Ruben Undheim wrote:
> What is the maximum baud rate (speed) when connecting a PIC16F84 (at
> 4MHz) to a computer serially?

The 16F84 has no hardware UART, so this depends on your firmware
implementation, what else the firmware needs to do, and how tolerant you are
of errors.  I once did a 9600 baud firmware UART on a PIC running at 160KHz.
It was fine for sending but reliable reception was not guaranteed.

However, this is much more easily solved by using a 16F628A which has the
same footprint, includes a hardware UART and other features, and costs less
than the obsolete 16F84.  Even the 16F628 is obsolete now, replaced by the
16F628A and the 16F648A.


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