CPU specific definitions for internal peripheral handling. More...

Detailed Description

CPU specific definitions for internal peripheral handling.

CPU specific definitions for internal peripheral handling

Author: Benjamin Valentin benja.nosp@m.min..nosp@m.valen.nosp@m.tin@.nosp@m.ml-pa.nosp@m..com

Definition in file periph_cpu.h.

#include <limits.h>
#include "macros/units.h"
#include "periph_cpu_common.h"
#include "candev_samd5x.h"

Include dependency graph for periph_cpu.h:

Go to the source code of this file.

Data Structures
struct	sam0_aux_cfg_mapping
	NVM User Row Mapping - Dedicated Entries Config values will be applied at power-on. More...

Macros
#define	SPI_HWCS(x) (UINT_MAX - 1)
	Override SPI hardware chip select macro. More...

#define	DAC_RES_BITS (12)
	The MCU has a 12 bit DAC.

#define	DAC_NUMOF (2)
	The MCU has two DAC outputs.

Variables
static const gpio_t	sam0_adc_pins [2][16]
	Pins that can be used for ADC input. More...

static const gpio_t	rtc_tamper_pins [RTC_NUM_OF_TAMPERS]
	RTC input pins that can be used for tamper detection and wake from Deep Sleep. More...

static const gpio_t	gclk_io_pins []
	Pins that have peripheral function GCLK. More...

static const uint8_t	gclk_io_ids []
	GCLK IDs of pins that have peripheral function GCLK - This maps directly to gclk_io_pins. More...

#define	SAM0_DFLL_FREQ_HZ MHZ(48)
	DFLL runs at at fixed frequency of 48 MHz.

#define	SAM0_XOSC_FREQ_HZ (XOSC0_FREQUENCY ? XOSC0_FREQUENCY : XOSC1_FREQUENCY)
	XOSC is used to generate a fixed frequency of 48 MHz.

#define	SAM0_DPLL_FREQ_MIN_HZ MHZ(96)
	DPLL must run with at least 96 MHz.

#define	SAM0_DPLL_FREQ_MAX_HZ MHZ(200)
	DPLL frequency must not exceed 200 MHz.

Power mode configuration
#define	PM_NUM_MODES (4)
	Backup, Hibernate, Standby, Idle.

enum	{ SAM0_PM_BACKUP = 0 , SAM0_PM_HIBERNATE = 1 , SAM0_PM_STANDBY = 2 , SAM0_PM_IDLE = 3 }
	Power modes.

SAMD5x GCLK definitions
#define	SAM0_GCLK_MAIN 0
	120 MHz main clock

#define	SAM0_GCLK_32KHZ 1
	32 kHz clock

#define	SAM0_GCLK_TIMER 2
	4-8 MHz clock for xTimer

#define	SAM0_GCLK_PERIPH 3
	12-48 MHz (DFLL) clock

#define	SAM0_GCLK_100MHZ 4
	100MHz FDPLL clock

GCLK compatibility definitions
#define	SAM0_GCLK_8MHZ SAM0_GCLK_TIMER

#define	SAM0_GCLK_48MHZ SAM0_GCLK_PERIPH

#define	ADC0_INPUTCTRL_MUXPOS_PA02 ADC_INPUTCTRL_MUXPOS_AIN0
	ADC pin aliases. More...

#define	ADC0_INPUTCTRL_MUXPOS_PA03 ADC_INPUTCTRL_MUXPOS_AIN1
	Alias for AIN1.

#define	ADC0_INPUTCTRL_MUXPOS_PB08 ADC_INPUTCTRL_MUXPOS_AIN2
	Alias for AIN2.

#define	ADC0_INPUTCTRL_MUXPOS_PB09 ADC_INPUTCTRL_MUXPOS_AIN3
	Alias for AIN3.

#define	ADC0_INPUTCTRL_MUXPOS_PA04 ADC_INPUTCTRL_MUXPOS_AIN4
	Alias for AIN4.

#define	ADC0_INPUTCTRL_MUXPOS_PA05 ADC_INPUTCTRL_MUXPOS_AIN5
	Alias for AIN5.

#define	ADC0_INPUTCTRL_MUXPOS_PA06 ADC_INPUTCTRL_MUXPOS_AIN6
	Alias for AIN6.

#define	ADC0_INPUTCTRL_MUXPOS_PA07 ADC_INPUTCTRL_MUXPOS_AIN7
	Alias for AIN7.

#define	ADC0_INPUTCTRL_MUXPOS_PA08 ADC_INPUTCTRL_MUXPOS_AIN8
	Alias for AIN8.

#define	ADC0_INPUTCTRL_MUXPOS_PA09 ADC_INPUTCTRL_MUXPOS_AIN9
	Alias for AIN9.

#define	ADC0_INPUTCTRL_MUXPOS_PA10 ADC_INPUTCTRL_MUXPOS_AIN10
	Alias for AIN10.

#define	ADC0_INPUTCTRL_MUXPOS_PA11 ADC_INPUTCTRL_MUXPOS_AIN11
	Alias for AIN11.

#define	ADC0_INPUTCTRL_MUXPOS_PB00 ADC_INPUTCTRL_MUXPOS_AIN12
	Alias for AIN12.

#define	ADC0_INPUTCTRL_MUXPOS_PB01 ADC_INPUTCTRL_MUXPOS_AIN13
	Alias for AIN13.

#define	ADC0_INPUTCTRL_MUXPOS_PB02 ADC_INPUTCTRL_MUXPOS_AIN14
	Alias for AIN14.

#define	ADC0_INPUTCTRL_MUXPOS_PB03 ADC_INPUTCTRL_MUXPOS_AIN15
	Alias for AIN15.

#define	ADC1_INPUTCTRL_MUXPOS_PB08 ADC_INPUTCTRL_MUXPOS_AIN0
	Alias for AIN0.

#define	ADC1_INPUTCTRL_MUXPOS_PB09 ADC_INPUTCTRL_MUXPOS_AIN1
	Alias for AIN1.

#define	ADC1_INPUTCTRL_MUXPOS_PA08 ADC_INPUTCTRL_MUXPOS_AIN2
	Alias for AIN2.

#define	ADC1_INPUTCTRL_MUXPOS_PA09 ADC_INPUTCTRL_MUXPOS_AIN3
	Alias for AIN3.

#define	ADC1_INPUTCTRL_MUXPOS_PC02 ADC_INPUTCTRL_MUXPOS_AIN4
	Alias for AIN4.

#define	ADC1_INPUTCTRL_MUXPOS_PC03 ADC_INPUTCTRL_MUXPOS_AIN5
	Alias for AIN5.

#define	ADC1_INPUTCTRL_MUXPOS_PB04 ADC_INPUTCTRL_MUXPOS_AIN6
	Alias for AIN6.

#define	ADC1_INPUTCTRL_MUXPOS_PB05 ADC_INPUTCTRL_MUXPOS_AIN7
	Alias for AIN7.

#define	ADC1_INPUTCTRL_MUXPOS_PB06 ADC_INPUTCTRL_MUXPOS_AIN8
	Alias for AIN8.

#define	ADC1_INPUTCTRL_MUXPOS_PB07 ADC_INPUTCTRL_MUXPOS_AIN9
	Alias for AIN9.

#define	ADC1_INPUTCTRL_MUXPOS_PC00 ADC_INPUTCTRL_MUXPOS_AIN10
	Alias for AIN10.

#define	ADC1_INPUTCTRL_MUXPOS_PC01 ADC_INPUTCTRL_MUXPOS_AIN11
	Alias for AIN11.

#define	ADC1_INPUTCTRL_MUXPOS_PC30 ADC_INPUTCTRL_MUXPOS_AIN12
	Alias for AIN12.

#define	ADC1_INPUTCTRL_MUXPOS_PC31 ADC_INPUTCTRL_MUXPOS_AIN13
	Alias for AIN13.

#define	ADC1_INPUTCTRL_MUXPOS_PD00 ADC_INPUTCTRL_MUXPOS_AIN14
	Alias for AIN14.

#define	ADC1_INPUTCTRL_MUXPOS_PD01 ADC_INPUTCTRL_MUXPOS_AIN15
	Alias for AIN15.

#define	ADC0_INPUTCTRL_MUXNEG_PA02 ADC_INPUTCTRL_MUXPOS_AIN0
	Alias for AIN0.

#define	ADC0_INPUTCTRL_MUXNEG_PA03 ADC_INPUTCTRL_MUXPOS_AIN1
	Alias for AIN1.

#define	ADC0_INPUTCTRL_MUXNEG_PB08 ADC_INPUTCTRL_MUXPOS_AIN2
	Alias for AIN2.

#define	ADC0_INPUTCTRL_MUXNEG_PB09 ADC_INPUTCTRL_MUXPOS_AIN3
	Alias for AIN3.

#define	ADC0_INPUTCTRL_MUXNEG_PA04 ADC_INPUTCTRL_MUXPOS_AIN4
	Alias for AIN4.

#define	ADC0_INPUTCTRL_MUXNEG_PA05 ADC_INPUTCTRL_MUXPOS_AIN5
	Alias for AIN5.

#define	ADC0_INPUTCTRL_MUXNEG_PA06 ADC_INPUTCTRL_MUXPOS_AIN6
	Alias for AIN6.

#define	ADC0_INPUTCTRL_MUXNEG_PA07 ADC_INPUTCTRL_MUXPOS_AIN7
	Alias for AIN7.

#define	ADC1_INPUTCTRL_MUXNEG_PB08 ADC_INPUTCTRL_MUXPOS_AIN0
	Alias for AIN0.

#define	ADC1_INPUTCTRL_MUXNEG_PB09 ADC_INPUTCTRL_MUXPOS_AIN1
	Alias for AIN1.

#define	ADC1_INPUTCTRL_MUXNEG_PA08 ADC_INPUTCTRL_MUXPOS_AIN2
	Alias for AIN2.

#define	ADC1_INPUTCTRL_MUXNEG_PA09 ADC_INPUTCTRL_MUXPOS_AIN3
	Alias for AIN3.

#define	ADC1_INPUTCTRL_MUXNEG_PC02 ADC_INPUTCTRL_MUXPOS_AIN4
	Alias for AIN4.

#define	ADC1_INPUTCTRL_MUXNEG_PC03 ADC_INPUTCTRL_MUXPOS_AIN5
	Alias for AIN5.

#define	ADC1_INPUTCTRL_MUXNEG_PB04 ADC_INPUTCTRL_MUXPOS_AIN6
	Alias for AIN6.

#define	ADC1_INPUTCTRL_MUXNEG_PB05 ADC_INPUTCTRL_MUXPOS_AIN7
	Alias for AIN7.

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 */

QSPI pins are fixed
#define	SAM0_QSPI_PIN_CLK GPIO_PIN(PB, 10)
	Clock

#define	SAM0_QSPI_PIN_CS GPIO_PIN(PB, 11)
	Chip Select

#define	SAM0_QSPI_PIN_DATA_0 GPIO_PIN(PA, 8)
	D0 / MOSI

#define	SAM0_QSPI_PIN_DATA_1 GPIO_PIN(PA, 9)
	D1 / MISO

#define	SAM0_QSPI_PIN_DATA_2 GPIO_PIN(PA, 10)
	D2 / WP

#define	SAM0_QSPI_PIN_DATA_3 GPIO_PIN(PA, 11)
	D3 / HOLD

#define	SAM0_QSPI_MUX GPIO_MUX_H
	QSPI mux

SDHC pins are fixed
#define	SAM0_SDHC_MUX GPIO_MUX_I
	SDHC function

#define	SAM0_SDHC0_PIN_SDCMD GPIO_PIN(PA, 8)
	Command

#define	SAM0_SDHC0_PIN_SDDAT0 GPIO_PIN(PA, 9)
	DATA0

#define	SAM0_SDHC0_PIN_SDDAT1 GPIO_PIN(PA, 10)
	DATA1

#define	SAM0_SDHC0_PIN_SDDAT2 GPIO_PIN(PA, 11)
	DATA2

#define	SAM0_SDHC0_PIN_SDDAT3 GPIO_PIN(PB, 10)
	DATA3

#define	SAM0_SDHC0_PIN_SDCK GPIO_PIN(PB, 11)
	Clock

#define	SAM0_SDHC1_PIN_SDCMD GPIO_PIN(PA, 20)
	Command

#define	SAM0_SDHC1_PIN_SDDAT0 GPIO_PIN(PB, 18)
	DATA0

#define	SAM0_SDHC1_PIN_SDDAT1 GPIO_PIN(PB, 19)
	DATA1

#define	SAM0_SDHC1_PIN_SDDAT2 GPIO_PIN(PB, 20)
	DATA2

#define	SAM0_SDHC1_PIN_SDDAT3 GPIO_PIN(PB, 21)
	DATA3

#define	SAM0_SDHC1_PIN_SDCK GPIO_PIN(PA, 21)
	Clock

Macro Definition Documentation

◆ ADC0_INPUTCTRL_MUXPOS_PA02

#define ADC0_INPUTCTRL_MUXPOS_PA02 ADC_INPUTCTRL_MUXPOS_AIN0

ADC pin aliases.

Alias for AIN0

Definition at line 122 of file periph_cpu.h.

◆ SPI_HWCS

#define SPI_HWCS ( x ) (UINT_MAX - 1)

Override SPI hardware chip select macro.

As of now, we do not support HW CS, so we always set it to a fixed value

Definition at line 98 of file periph_cpu.h.

Variable Documentation

◆ gclk_io_ids

const uint8_t gclk_io_ids[]

static

Initial value:

= {
    4, 5, 0, 1, 2, 3, 1, 0, 4, 5, 6, 7, 0, 1, 2, 3, 4, 5, 6, 7, 0, 1
}

GCLK IDs of pins that have peripheral function GCLK - This maps directly to gclk_io_pins.

Definition at line 222 of file periph_cpu.h.

◆ gclk_io_pins

const gpio_t gclk_io_pins[]

static

Initial value:

= {
    GPIO_PIN(PA, 10), GPIO_PIN(PA, 11), GPIO_PIN(PA, 14),
    GPIO_PIN(PA, 15), GPIO_PIN(PA, 16), GPIO_PIN(PA, 17),
    GPIO_PIN(PA, 27), GPIO_PIN(PA, 30), GPIO_PIN(PB, 10),
    GPIO_PIN(PB, 11), GPIO_PIN(PB, 12), GPIO_PIN(PB, 13),
    GPIO_PIN(PB, 14), GPIO_PIN(PB, 15), GPIO_PIN(PB, 16),
    GPIO_PIN(PB, 17), GPIO_PIN(PB, 18), GPIO_PIN(PB, 19),
    GPIO_PIN(PB, 20), GPIO_PIN(PB, 21), GPIO_PIN(PB, 22),
 
}

Pins that have peripheral function GCLK.

Definition at line 207 of file periph_cpu.h.

◆ rtc_tamper_pins

const gpio_t rtc_tamper_pins[RTC_NUM_OF_TAMPERS]

static

Initial value:

= {
    GPIO_PIN(PB, 0), GPIO_PIN(PB, 2), GPIO_PIN(PA, 2),
    GPIO_PIN(PC, 0), GPIO_PIN(PC, 1)
}

RTC input pins that can be used for tamper detection and wake from Deep Sleep.

Definition at line 199 of file periph_cpu.h.

◆ sam0_adc_pins

const gpio_t sam0_adc_pins[2][16]

static

Initial value:

= {
    {   
        GPIO_PIN(PA, 2), GPIO_PIN(PA, 3), GPIO_PIN(PB, 8),  GPIO_PIN(PB, 9),
        GPIO_PIN(PA, 4), GPIO_PIN(PA, 5), GPIO_PIN(PA, 6),  GPIO_PIN(PA, 7),
        GPIO_PIN(PA, 8), GPIO_PIN(PA, 9), GPIO_PIN(PA, 10), GPIO_PIN(PA, 11),
        GPIO_PIN(PB, 0), GPIO_PIN(PB, 1), GPIO_PIN(PB, 2),  GPIO_PIN(PB, 3)
    },
    {   
        GPIO_PIN(PB, 8),  GPIO_PIN(PB, 9),  GPIO_PIN(PA, 8), GPIO_PIN(PA, 9),
        GPIO_PIN(PC, 2),  GPIO_PIN(PC, 3),  GPIO_PIN(PB, 4), GPIO_PIN(PB, 5),
        GPIO_PIN(PB, 6),  GPIO_PIN(PB, 7),  GPIO_PIN(PC, 0), GPIO_PIN(PC, 1),
        GPIO_PIN(PC, 30), GPIO_PIN(PC, 31), GPIO_PIN(PD, 0), GPIO_PIN(PD, 1)
    }
}

Pins that can be used for ADC input.

Definition at line 103 of file periph_cpu.h.

Detailed Description

Data Structures

Macros

Variables

Power mode configuration

SAMD5x GCLK definitions

GCLK compatibility definitions

Real time counter configuration

QSPI pins are fixed

SDHC pins are fixed

Macro Definition Documentation

◆ ADC0_INPUTCTRL_MUXPOS_PA02

◆ SPI_HWCS

Variable Documentation

◆ gclk_io_ids

◆ gclk_io_pins

◆ rtc_tamper_pins

◆ sam0_adc_pins