boards/sodaq-sara-sff: add status pin for SARA

[keestux]

Contribution description

This adds a pin definition for SARA_STATUS on the sodaq-sara-sff board.

Testing procedure

Testing is only possible with this specific board, of course. Here is a code snippet to see it in operation.

    printf("SARA_STATUS: %d\n", gpio_read(SARA_STATUS_PIN));
    /* switch on the SARA Ublox */
    SARA_ENABLE_ON;
    SARA_TX_ENABLE_ON;
    /* Switch the PWR_ON pin to output */
    gpio_init(SARA_R4XX_PWR_ON_PIN, GPIO_OUT);
    SARA_R4XX_PWR_ON_OFF;
    xtimer_usleep(2000U * US_PER_MS);
    SARA_R4XX_PWR_ON_ON;
    /* Switch the PWR_ON pin back to input */
    gpio_init(SARA_R4XX_PWR_ON_PIN, GPIO_IN);
    printf("SARA_STATUS: %d\n", gpio_read(SARA_STATUS_PIN));

The output should then be:

SARA_STATUS: 0
SARA_STATUS: 1

[dylad]

This looks good to me.
@keestux there is only a small static test failure from doccheck that's need a fix.
Feel free to squash directly so we can merge this.

[dylad]

ping @keestux

[dylad]

static test is failing again

Suggested change

	/**
	* @name SARA (UBlox) STATUS
	*
	* This is the V_INT of the SARA.
	* @{
	*/
	#define SARA_STATUS_PIN GPIO_PIN(PA, 28)
	#define SARA_STATUS_PIN GPIO_PIN(PA, 28) /**< This is the V_INT of the board */

I think this would make static-test happy

[keestux]

ping @keestux

Sorry about the delay. I've pushed a fixup as you suggested

[dylad]

@keestux I think we're all good now.
Please squash :)

[keestux]

@keestux I think we're all good now. Please squash :)

Squashed

[dylad]

ACK.

[riot-ci]

Murdock results

✔️ PASSED

08862b2 boards/sodaq-sara-sff: add status pin for SARA

Success	Failures	Total	Runtime
549	0	549	02m:20s

Artifacts

• Documentation preview