Hello Alan, All of the pins on S7G2 have variety of functions available for them. For this particular board decision was made to use P2_5 as a CTSU reference pin. You can use P1_9 instead, under a number of conditions: - Enable "Reset on connection" in the debug configuration - when your board is running the debug pin will be re-assigned so board will need a reset before programming. - If debug registers are initialized, ioport won't be able to reconfigure the pin at runtime. After programming, you'll need to disconnect the board from power and re-connect it. The application will run and you should observe the clock output Regards
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