KL05, Use the same pin for two things

[javierhernande1]

Hello,

It's possible to use the PTA0 for use SWD_CLK and CMP0_IN2 so?

BR

[Robin_Shen · Accepted solution]

Hi Javier,

PORTA_PCR0[MUX] can be used to switch function CMP0_IN2(ALT0) and SWD_CLK(ALT3).

Due to the default setting of PTA0, you need to change this setting when you want to use it as CMP0_IN2 function.

Debug port\NMI_b\Reset_b pins are not recommend to use as other function, due to it may cause connect problem when you want to debug it again after flashed. See: Bricking and Recovering FRDM-KL25Z Boards: Reset, SWD Clock and Low Power

Best Regards,

Robin

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