ICCCLk, ICCDATA pins

adib · ‎2006-07-17

Posted on July 18, 2006 at 05:07

adib · ‎2006-07-14

Posted on July 14, 2006 at 12:27

Hi,

I'm working with ST72F264 micro. In my application PA0, PA1 are used as outputs connected to transistors.

When I burn the micro everything works ok but when I try to debug using InDART-STX I get ''communication error....'' when I press the ''!'' RUN button.

When I define these pins as inputs I can debug normally.

Is it allowed to define PA0, PA1 as outputs when debugging?

Thanks

hermanckc · ‎2006-07-17

Posted on July 18, 2006 at 05:07

Hi Gilat,

During the no-chip debug mode, command-based protocol via the ICCDATA(PA1) and ICCCLK (PA0) lines to communicate with the microcontroller, andfor this reason, both I/O will be reserved. Sothe application should not use (define) these I/O during debugging session.

If you really need to use PA0 and PA1 for your spplication, you have to inactivate the code on PA0 and PA1.and then test and debug these ports by stand alone the application (not using inDART-STX for debugging these ports)

:D