topic PN7462 GPIO Output Read Issue Using phhalPcr_GetGpioVal() in MCX Microcontrollers

PN7462 GPIO Output Read Issue Using phhalPcr_GetGpioVal()

uday_gowda — Sat, 09 May 2026 07:15:26 GMT

Hi Team,

I am using PN7462 and trying to read LED GPIO pins configured as output using phhalPcr_GetGpioVal().

uint8_t val = 0; phhalPcr_GetGpioVal(LED_RED, &val);

But the API always returns 0 even when the LED output is HIGH.

Is phhalPcr_GetGpioVal() only reading input pad state?

Is there any other API to read output GPIO pin state/output latch value on PN7462?

Thanks in advance.

KaiLi — Sat, 09 May 2026 09:37:49 GMT

Please refer to tht example => PN7642_MCUXpresso_SDK_02-15-006_PUB\boards\pnev7642fama\driver_examples\gpt, there is an answer what you want.

uday_gowda — Mon, 11 May 2026 04:44:25 GMT

Thanks for the reference.

I am using PN7462AU with SDK NxpNfcRdLib_PN7462_v07.14.00_Pub.

I checked the suggested example area, but there also I could see only GPIO write operations for LEDs and not GPIO output read operations.

Could you please confirm if there is any API available to read output GPIO state on PN7462?

KaiLi — Wed, 13 May 2026 06:54:26 GMT

Maybe you can try: