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

Detailed Description

CPU specific definitions for internal peripheral handling.

Author: Hauke Petersen hauke.nosp@m..pet.nosp@m.ersen.nosp@m.@fu-.nosp@m.berli.nosp@m.n.de; Bas Stottelaar basst.nosp@m.otte.nosp@m.laar@.nosp@m.gmai.nosp@m.l.com

Definition in file periph_cpu.h.

#include "kernel_defines.h"
#include "mutex.h"
#include "cpu.h"
#include "cpu_conf.h"
#include "em_adc.h"
#include "em_cmu.h"
#include "em_device.h"
#include "em_gpio.h"
#include "em_timer.h"
#include "em_usart.h"
#include "em_wdog.h"
#include "em_rtc.h"

Include dependency graph for periph_cpu.h:

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Go to the source code of this file.

Data Structures
struct	clk_mux_t
	Clock mux configuration. More...

struct	clk_div_t
	Clock divider configuration. More...

struct	adc_conf_t
	ADC device configuration. More...

struct	adc_chan_conf_t
	ADC channel configuration. More...

struct	i2c_conf_t
	I2C configuration structure. More...

struct	pwm_chan_conf_t
	PWM channel configuration. More...

struct	pwm_conf_t
	PWM device configuration. More...

struct	spi_dev_t
	SPI device configuration. More...

struct	timer_dev_t
	Define timer configuration values. More...

struct	timer_conf_t
	Timer device configuration. More...

struct	uart_conf_t
	UART device configuration. More...

Macros
#define	GPIO_UNDEF (0xffffffff)
	Definition of a fitting UNDEF value.

#define	GPIO_PIN(x, y) ((gpio_t) ((x << 4) \| y))
	Mandatory function for defining a GPIO pins.

#define	GPIO_MODE(x, y) ((x << 1) \| y)
	Internal macro for combining pin mode (x) and pull-up/down (y).

#define	ADC_MODE(x, y) ((y << 4) \| x)
	Internal macro for combining ADC resolution (x) with number of shifts (y).

#define	ADC_MODE_UNDEF(x) (ADC_MODE(x, 15))
	Internal define to note that resolution is not supported.

#define	CONFIG_EFM32_XTIMER_USE_LETIMER 0
	Use LETIMER as the base timer for XTIMER.

#define	PROVIDES_PM_OFF
	CPU provides own pm_off() function.

#define	PROVIDES_PM_LAYERED_OFF
	CPU provides own pm_off() function.

#define	PM_NUM_MODES (3U)
	Number of usable power modes.

Enumerations
enum
	Available ports on the EFM32. More...

#define	CPUID_LEN (8U)
	Length of CPU ID in octets.

#define	CLOCK_CORECLOCK SystemCoreClock
	CPU Frequency Define.

Real time counter configuration
#define	RTT_MAX_FREQUENCY (32768U) /* in Hz */

#define	RTT_MIN_FREQUENCY (1U) /* in Hz */

#define	RTT_CLOCK_FREQUENCY (32768U) /* in Hz, LFCLK*/

#define	HAVE_GPIO_T
	Define a custom type for GPIO pins.

typedef uint32_t	gpio_t

#define	HAVE_HWCRYPTO_AES128
	Override hardware crypto supported methods.

#define	PERIPH_I2C_NEED_READ_REG
	Declare needed generic I2C functions.

#define	PERIPH_I2C_NEED_WRITE_REG

#define	PERIPH_SPI_NEEDS_INIT_CS
	Declare needed generic SPI functions.

#define	PERIPH_SPI_NEEDS_TRANSFER_BYTE

#define	PERIPH_SPI_NEEDS_TRANSFER_REG

#define	PERIPH_SPI_NEEDS_TRANSFER_REGS

#define	LETIMER_MAX_VALUE _LETIMER_TOP_MASK
	max timer value of LETIMER peripheral

#define	TIMER_MAX_VALUE _TIMER_TOP_MASK
	max timer value of TIMER peripheral

Available power modes
#define	EFM32_PM_MODE_EM3 (0U)
	CPU sleeps, peripherals in EM3 domain are active.

#define	EFM32_PM_MODE_EM2 (1U)
	CPU sleeps, peripherals in EM2 + EM3 domain are active.

#define	EFM32_PM_MODE_EM1 (2U)
	CPU sleeps, all peripherals are active.

Watchdog timer (WDT) configuration
#define	WDT_CLOCK_HZ (1000U)

#define	NWDT_TIME_LOWER_LIMIT ((1U << (3U + wdogPeriod_9)) + 1U)

#define	NWDT_TIME_UPPER_LIMIT ((1U << (3U + wdogPeriod_256k)) + 1U)

#define	WDT_HAS_STOP (1U)

USB device definitions
#define	USBDEV_NUM_ENDPOINTS 7
	Number of USB OTG FS endpoints including EP0.

Macro Definition Documentation

◆ ADC_MODE

#define ADC_MODE	(	x,
		y
	)	((y << 4) \| x)

Internal macro for combining ADC resolution (x) with number of shifts (y).

Definition at line 352 of file periph_cpu.h.

◆ ADC_MODE_UNDEF

#define ADC_MODE_UNDEF ( x ) (ADC_MODE(x, 15))

Internal define to note that resolution is not supported.

Definition at line 357 of file periph_cpu.h.

◆ CLOCK_CORECLOCK

#define CLOCK_CORECLOCK SystemCoreClock

CPU Frequency Define.

Definition at line 76 of file periph_cpu.h.

◆ CONFIG_EFM32_XTIMER_USE_LETIMER

#define CONFIG_EFM32_XTIMER_USE_LETIMER 0

Use LETIMER as the base timer for XTIMER.

Definition at line 576 of file periph_cpu.h.

◆ CPUID_LEN

#define CPUID_LEN (8U)

Length of CPU ID in octets.

Definition at line 71 of file periph_cpu.h.

◆ EFM32_PM_MODE_EM1

#define EFM32_PM_MODE_EM1 (2U)

CPU sleeps, all peripherals are active.

Definition at line 685 of file periph_cpu.h.

◆ EFM32_PM_MODE_EM2

#define EFM32_PM_MODE_EM2 (1U)

CPU sleeps, peripherals in EM2 + EM3 domain are active.

Definition at line 684 of file periph_cpu.h.

◆ EFM32_PM_MODE_EM3

#define EFM32_PM_MODE_EM3 (0U)

CPU sleeps, peripherals in EM3 domain are active.

Definition at line 683 of file periph_cpu.h.

◆ GPIO_MODE

#define GPIO_MODE	(	x,
		y
	)	((x << 1) \| y)

Internal macro for combining pin mode (x) and pull-up/down (y).

Definition at line 152 of file periph_cpu.h.

◆ GPIO_PIN

#define GPIO_PIN	(	x,
		y
	)	((gpio_t) ((x << 4) \| y))

Mandatory function for defining a GPIO pins.

Definition at line 147 of file periph_cpu.h.

◆ GPIO_UNDEF

#define GPIO_UNDEF (0xffffffff)

Definition of a fitting UNDEF value.

Definition at line 142 of file periph_cpu.h.

◆ HAVE_GPIO_T

#define HAVE_GPIO_T

Define a custom type for GPIO pins.

Definition at line 135 of file periph_cpu.h.

◆ HAVE_HWCRYPTO_AES128

#define HAVE_HWCRYPTO_AES128

Override hardware crypto supported methods.

Definition at line 403 of file periph_cpu.h.

◆ LETIMER_MAX_VALUE

#define LETIMER_MAX_VALUE _LETIMER_TOP_MASK

max timer value of LETIMER peripheral

Definition at line 568 of file periph_cpu.h.

◆ NWDT_TIME_LOWER_LIMIT

#define NWDT_TIME_LOWER_LIMIT ((1U << (3U + wdogPeriod_9)) + 1U)

Definition at line 694 of file periph_cpu.h.

◆ NWDT_TIME_UPPER_LIMIT

#define NWDT_TIME_UPPER_LIMIT ((1U << (3U + wdogPeriod_256k)) + 1U)

Definition at line 695 of file periph_cpu.h.

◆ PERIPH_I2C_NEED_READ_REG

#define PERIPH_I2C_NEED_READ_REG

Declare needed generic I2C functions.

Definition at line 448 of file periph_cpu.h.

◆ PERIPH_I2C_NEED_WRITE_REG

#define PERIPH_I2C_NEED_WRITE_REG

Definition at line 449 of file periph_cpu.h.

◆ PERIPH_SPI_NEEDS_INIT_CS

#define PERIPH_SPI_NEEDS_INIT_CS

Declare needed generic SPI functions.

Definition at line 534 of file periph_cpu.h.

◆ PERIPH_SPI_NEEDS_TRANSFER_BYTE

#define PERIPH_SPI_NEEDS_TRANSFER_BYTE

Definition at line 535 of file periph_cpu.h.

◆ PERIPH_SPI_NEEDS_TRANSFER_REG

#define PERIPH_SPI_NEEDS_TRANSFER_REG

Definition at line 536 of file periph_cpu.h.

◆ PERIPH_SPI_NEEDS_TRANSFER_REGS

#define PERIPH_SPI_NEEDS_TRANSFER_REGS

Definition at line 537 of file periph_cpu.h.

◆ PM_NUM_MODES

#define PM_NUM_MODES (3U)

Number of usable power modes.

Definition at line 677 of file periph_cpu.h.

◆ PROVIDES_PM_LAYERED_OFF

#define PROVIDES_PM_LAYERED_OFF

CPU provides own pm_off() function.

Definition at line 672 of file periph_cpu.h.

◆ PROVIDES_PM_OFF

#define PROVIDES_PM_OFF

CPU provides own pm_off() function.

Definition at line 667 of file periph_cpu.h.

◆ RTT_CLOCK_FREQUENCY

#define RTT_CLOCK_FREQUENCY (32768U) /* in Hz, LFCLK*/

Definition at line 127 of file periph_cpu.h.

◆ RTT_MAX_FREQUENCY

#define RTT_MAX_FREQUENCY (32768U) /* in Hz */

Definition at line 125 of file periph_cpu.h.

◆ RTT_MIN_FREQUENCY

#define RTT_MIN_FREQUENCY (1U) /* in Hz */

Definition at line 126 of file periph_cpu.h.

◆ TIMER_MAX_VALUE

#define TIMER_MAX_VALUE _TIMER_TOP_MASK

max timer value of TIMER peripheral

Definition at line 569 of file periph_cpu.h.

◆ USBDEV_NUM_ENDPOINTS

#define USBDEV_NUM_ENDPOINTS 7

Number of USB OTG FS endpoints including EP0.

Definition at line 709 of file periph_cpu.h.

◆ WDT_CLOCK_HZ

#define WDT_CLOCK_HZ (1000U)

Definition at line 692 of file periph_cpu.h.

◆ WDT_HAS_STOP

#define WDT_HAS_STOP (1U)

Definition at line 702 of file periph_cpu.h.

Typedef Documentation

◆ gpio_t

typedef uint32_t gpio_t

Definition at line 136 of file periph_cpu.h.

Enumeration Type Documentation

◆ anonymous enum

anonymous enum

Available ports on the EFM32.

Definition at line 157 of file periph_cpu.h.