S32 SDKのトピックPin Data Direction

Pin Data Direction

AnilKumar409 — Thu, 10 Aug 2023 11:55:25 GMT

Ho to use GPIO_PDDR_PDD(x) in my code efficiently.

Earlier I have used to write it as : PTD->PDDR &= ~((1 << 15) ;

Re: Pin Data Direction

VaneB — Thu, 10 Aug 2023 21:17:07 GMT

The macro needs to be used as base->PDDR = GPIO_PDDR_PDD(pins);

You can also refer to the SDK functions PINS_GPIO_SetPinDirection() and PINS_GPIO_SetPinsDirection() which use this macro.

B.R.

VaneB

Re: Pin Data Direction

AnilKumar409 — Fri, 18 Aug 2023 04:47:10 GMT

hi @VaneB ,

We usually write data direction as,

For input: base->PDDR &= ~GPIO_PDDR_PDD(pins);

For output: base->PDDR |= GPIO_PDDR_PDD(pins);

Help me avoid bitwise operators '|'and '&''.

Re: Pin Data Direction

VaneB — Mon, 21 Aug 2023 22:06:31 GMT

Hi @AnilKumar409

The suggestion we provide for setting the pin direction always uses '|' and '&''.

As I mentioned before you can refer to the functions PINS_GPIO_SetPinDirection() or PINS_GPIO_SetPinsDirection(). Also, you can refer to the examples provided in the S32K1xx Series Cookbook.

Re: Pin Data Direction

AnilKumar409 — Fri, 22 Sep 2023 04:05:50 GMT

Hi @VaneB ,

For input: base->PDDR &= ~GPIO_PDDR_PDD(pins);

For output: base->PDDR |= GPIO_PDDR_PDD(pins);

Are these lines be passed MISRA-C 2012.?

Re: Pin Data Direction

VaneB — Fri, 22 Sep 2023 16:39:42 GMT

Hi @AnilKumar409

The SDK driver is MISRA-C: 2012 compliant, but also is documented in the user manual that the driver still contains Violations of MISRA C 2012. Please refer to the below pictures for more information.