BAJ wrote:
> You must have missed the context. I was specifically and only referring=

to the
> logic analyzer function, whose job isn't either displaying output or
> supplying input.

The logic monitor (NOT "analyzer", that implies capabilities that it
doesn't have) in my design IS for for displaying output and supplying
input.  Think of it like one of those clip-on monitors that have a LED or=

LCD element per IC pin, except that it displays on the computer screen
instead, and has the ability to set individual lines as outputs (with
automatic reversion to a hi-Z input if there's a conflict).  Think of it =
as
a LED on every port A, B, and C pin of the target PIC, except that you
don't need all those LEDs (I did specify at least one actual LED on the
device, just for real-world experience), and aren't loading the pins near=
ly
as much as a LED would.  Think of it as an optional pushbutton or toggle
switch on any of those port pins, except that you don't need physical
switches (again, one actual pushbutton specified for real-world experienc=
e
with debouncing).

Sample rate?  Tens of times a second perhaps, this is for human-rate I/O.=


Storage of samples?  Hardware triggers?  Nonexistant, that's not what thi=
s
feature is for.

Display?  This would be the main window of the software that accompanies
the device, available any time except when loading code into the target. =

There would be a grid of pin indicators, limited to the pins actually
present on the selected target PIC, with editable project-specific labels=

in addition to the normal pin names.  Each would display the pin's curren=
t
state (0, 1, or X if the pin isn't being externally driven), and a popup
for setting the pin's mode - digital input, analog input (where possible)=
,
toggle output, momentary high output, or momentary low output.  Advanced
features might include contact bounce simulation for the output modes, an=
d
the ability to bit-bang a serial stream to any target pin.

Does that make what I'm talking about any clearer?
        Jason Harper

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