mirror of
https://github.com/RIOT-OS/RIOT.git
synced 2025-01-18 12:52:44 +01:00
310eb4970c
On samd5x only the RTC can wake the CPU from Deep Sleep (pm modes 0 & 1). The external interrupt controller is disabled, but we can use the tamper detection of the RTC. If an gpio interrupt is configured on one of the five tamper detect pins, those can be used to wake the CPU from Deep Sleep / Hibernate.
100 lines
2.4 KiB
C
100 lines
2.4 KiB
C
/*
|
|
* Copyright (C) 2018 Mesotic SAS
|
|
*
|
|
* This file is subject to the terms and conditions of the GNU Lesser
|
|
* General Public License v2.1. See the file LICENSE in the top level
|
|
* directory for more details.
|
|
*/
|
|
|
|
/**
|
|
* @ingroup cpu_saml1x
|
|
* @brief CPU specific definitions for internal peripheral handling
|
|
* @{
|
|
*
|
|
* @file
|
|
* @brief CPU specific definitions for internal peripheral handling
|
|
*
|
|
* @author Dylan Laduranty <dylan.laduranty@mesotic.com>
|
|
*/
|
|
|
|
#ifndef PERIPH_CPU_H
|
|
#define PERIPH_CPU_H
|
|
|
|
#include "periph_cpu_common.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/**
|
|
* @name Power mode configuration
|
|
* @{
|
|
*/
|
|
#define PM_NUM_MODES (1)
|
|
/** @} */
|
|
|
|
/**
|
|
* @brief Override the default initial PM blocker
|
|
* @todo Idle modes are enabled by default, deep sleep mode blocked
|
|
*/
|
|
#define PM_BLOCKER_INITIAL 0x00000001
|
|
|
|
/**
|
|
* @name SAML1x GCLK definitions
|
|
* @{
|
|
*/
|
|
enum {
|
|
SAM0_GCLK_MAIN = 0, /**< 16 MHz main clock */
|
|
SAM0_GCLK_32KHZ, /**< 32 kHz clock */
|
|
};
|
|
/** @} */
|
|
|
|
#ifndef DOXYGEN
|
|
#define HAVE_ADC_RES_T
|
|
typedef enum {
|
|
ADC_RES_6BIT = 0xff, /**< not supported */
|
|
ADC_RES_8BIT = ADC_CTRLC_RESSEL_8BIT, /**< ADC resolution: 8 bit */
|
|
ADC_RES_10BIT = ADC_CTRLC_RESSEL_10BIT, /**< ADC resolution: 10 bit */
|
|
ADC_RES_12BIT = ADC_CTRLC_RESSEL_12BIT, /**< ADC resolution: 12 bit */
|
|
ADC_RES_14BIT = 0xfe, /**< not supported */
|
|
ADC_RES_16BIT = 0xfd /**< not supported */
|
|
} adc_res_t;
|
|
#endif /* ndef DOXYGEN */
|
|
/** @} */
|
|
|
|
/**
|
|
* @brief The MCU has a 10 bit DAC
|
|
*/
|
|
#define DAC_RES_BITS (10)
|
|
|
|
/**
|
|
* @brief The MCU has one DAC Output.
|
|
*/
|
|
#define DAC_NUMOF (1)
|
|
|
|
/**
|
|
* @name Real time counter configuration
|
|
* @{
|
|
*/
|
|
#define RTT_MAX_VALUE (0xffffffff)
|
|
#define RTT_CLOCK_FREQUENCY (32768U) /* in Hz */
|
|
#define RTT_MIN_FREQUENCY (RTT_CLOCK_FREQUENCY / 1024U) /* in Hz */
|
|
#define RTT_MAX_FREQUENCY (RTT_CLOCK_FREQUENCY) /* in Hz */
|
|
/** @} */
|
|
|
|
/**
|
|
* @brief RTC input pins that can be used for tamper detection and
|
|
* wake from Deep Sleep
|
|
*/
|
|
static const gpio_t rtc_tamper_pins[RTC_NUM_OF_TAMPERS] = {
|
|
GPIO_PIN(PA, 8), GPIO_PIN(PA, 9), GPIO_PIN(PA, 16),
|
|
GPIO_PIN(PA, 17)
|
|
};
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* PERIPH_CPU_H */
|
|
/** @} */
|