is it possible to disable the RTCK signal during debugging the ADuC7126? I want to use P4.5 as a GPIO but this pin is shared with RTCK.
Sorry to come back late. I have just tried it and it works.
But of course you need ,as shown below, cut the connection to the JTAG connector and place R22 to short TCK and RTCK - simply a 0R resistor or a short wire.
You do not need RTCK and can disconnect if you do not use adaptive clocking for the JTAG.
That dont work. I tired it with a 200khz fixed clock.
Are you sure that RTCK can be disabled?
With the track cut when in debug mode and stepping through the code P4.5 seems to toggle even though user code doesn't toggle the pin.
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