topic Re: PN7462 Using GPIO14 as GPIO Output? in NFC

PN7462 Using GPIO14 as GPIO Output?

EE_Ark — Tue, 21 Dec 2021 14:48:19 GMT

Hi,

How can I configure GPIO14(CLK_AUX) as GPIO output and set it's value?

I know I should use "ph_Reg.h" file but couldn't find out what should i do exactly.

Thanks.

EE_Ark — Wed, 22 Dec 2021 08:58:12 GMT

I tried these codes without success.

PH_REG_SET_BITN(PCR_PAD_CLK_AUX_REG,PCR_PAD_CLK_AUX_REG_CLK_AUX_GPIOMODE_EN_POS);

//PH_REG_SET_FIELD( PCR_PAD_CLK_AUX_REG , CLK_AUX_PUPD,0x2);//pull up
//PH_REG_SET_FIELD( PCR_PAD_CLK_AUX_REG , CLK_AUX_PUPD,0x3);//pull down

PH_REG_SET_BIT(PCR_PADOUT_REG,PADOUT_CLK_AUX); //Set CLK_AUX HIGH
PH_REG_CLEAR_BIT(PCR_PADOUT_REG,PADOUT_CLK_AUX); //Set CLK_AUX LOW

danielchen — Thu, 23 Dec 2021 16:18:31 GMT

In order to config GPIO output, you can try API: phhalPcr_ConfigOutput () and PH_HAL_GPIO_SETGPIOVAL ()

You can refer to pphhalPcr_GpioInit() function in phhalGpio.c

Regards

Daniel