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LPC82X PIO0_4 as output

Question asked by Kurt Mirdell on Mar 19, 2019
Latest reply on Apr 1, 2019 by jeremyzhou

I am trying to use PIO0_4 as output on a LPC824, but I am missing something. There are no problems with other pins.

There is a statement in the datasheet rev 1.3 on page 10 - note 3 in Table 3, pin description - "The wake-up pin function can be disabled and the pin can be used for other purposes, if the WKT low-power oscillator is enabled for waking up the part from Deep power-down mode."

ADC11 is switched off in PINENABLE

I have tried to put value 2 in DPDCTRL, but that doesn't make any difference. 

Pin seems to be input with pullup.