Hi!
I am testing the use of CTAUX INT, IO and CLK pins as GPIO on PN7642 , as they are listed inside the gpio_pin_t enum (kGPIO_CTAUX_IO, kGPIO_CTAUX_CLK, kGPIO_CTAUX_INT). There is also a bitfield in the PCRM register:
/**< 16-If set the CT_AUX IP is driving this pad, otherwise GPIO mode is active.*/
However it seems that the default init with GPIO_PinInit and GPIO_PinRead/Writed do not work. I also could not get it to work with some other configs in the register.
I also noticed the pinot of the PN7642 datasheet they are not marked as GPIO
Furthermore the datasheet says there are "Up to 21 GPIOs (6 dedicated GPIOs)". If the CTAUX pins could be used there would be 24 of them.
Could you clarify if I can use these pins as GPIO or not.
Thanks in advance!
Hello @nekprimc
E4 can be used GPIO,but it's limited input.