watch.h File Reference

#include <stdint.h>
#include <stdbool.h>
#include "driver_init.h"
#include "pins.h"
#include "watch_app.h"
#include "watch_rtc.h"
#include "watch_slcd.h"
#include "watch_extint.h"
#include "watch_led.h"
#include "watch_buzzer.h"
#include "watch_adc.h"
#include "watch_gpio.h"
#include "watch_i2c.h"
#include "watch_spi.h"
#include "watch_uart.h"
#include "watch_storage.h"
#include "watch_deepsleep.h"
#include "watch_private.h"

Go to the source code of this file.

Macros
#define	SWCLK   GPIO(GPIO_PORTA, 30)
#define	SWDIO   GPIO(GPIO_PORTA, 31)

Functions
bool	watch_is_buzzer_or_led_enabled (void)
	Returns true if either the buzzer or the LED driver is enabled.
bool	watch_is_usb_enabled (void)
	Returns true if USB is enabled.
void	watch_reset_to_bootloader (void)
	Resets in the UF2 bootloader mode.
void	cdc_task (void)
	Call periodically from app main loop to service CDC RX/TX.
int	read (int file, char *ptr, int len)
	Reads up to len bytes from the USB serial.
void	watch_disable_TRNG ()
	Disables the TRNG twice in order to work around silicon erratum 1.16.1.

Function Documentation

read()

int read	(	int	file,
		char *	ptr,
		int	len
	)

Reads up to len bytes from the USB serial.

Parameters

file	ignored, you can pass in 0
ptr	pointer to a buffer of at least len bytes
len	the number of bytes you wish to read, max 256.

Returns

The number of bytes read, or zero if no bytes were read.

watch_is_buzzer_or_led_enabled()

bool watch_is_buzzer_or_led_enabled

(

void

)

Returns true if either the buzzer or the LED driver is enabled.

Both the buzzer and the LED use the TCC peripheral to drive their behavior. This function returns true if that peripheral is enabled. You can use this function to determine whether you need to call the watch_disable_leds or or watch_enable_buzzer functions before using these peripherals.