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periph_conf.h File Reference
Boards » Atmel SAM L21 Xplained Pro

Peripheral MCU configuration for the Atmel SAM L21 Xplained Pro board. More...

Detailed Description

Peripheral MCU configuration for the Atmel SAM L21 Xplained Pro board.

Author
Thomas Eichinger thoma.nosp@m.s.ei.nosp@m.ching.nosp@m.er@f.nosp@m.u-ber.nosp@m.lin..nosp@m.de
Kaspar Schleiser kaspa.nosp@m.r@sc.nosp@m.hleis.nosp@m.er.d.nosp@m.e
Hauke Petersen hauke.nosp@m..pet.nosp@m.ersen.nosp@m.@fu-.nosp@m.berli.nosp@m.n.de

Definition in file periph_conf.h.

#include "periph_cpu.h"
+ Include dependency graph for periph_conf.h:

Go to the source code of this file.

#define CLOCK_CORECLOCK   (48000000U)
 GCLK reference speed.
 
#define USE_VREG_BUCK   (1)
 Enable the internal DC/DC converter The board is equipped with the necessary inductor.
 

Timer peripheral configuration

#define TIMER_0_CHANNELS   2
 
#define TIMER_0_ISR   isr_tc0
 
#define TIMER_NUMOF   ARRAY_SIZE(timer_config)
 
static const tc32_conf_t timer_config []
 

UART configuration

#define UART_0_ISR   isr_sercom3
 
#define UART_1_ISR   isr_sercom4
 
#define UART_2_ISR   isr_sercom1
 
#define UART_NUMOF   ARRAY_SIZE(uart_config)
 
static const uart_conf_t uart_config []
 

PWM configuration

#define PWM_NUMOF   ARRAY_SIZE(pwm_config)
 
static const pwm_conf_chan_t pwm_chan0_config []
 
static const pwm_conf_t pwm_config []
 

SPI configuration

#define SPI_NUMOF   ARRAY_SIZE(spi_config)
 
static const spi_conf_t spi_config []
 

I2C configuration

#define I2C_NUMOF   ARRAY_SIZE(i2c_config)
 
static const i2c_conf_t i2c_config []
 

RTC configuration

#define EXTERNAL_OSC32_SOURCE   1
 
#define INTERNAL_OSC32_SOURCE   0
 
#define ULTRA_LOW_POWER_INTERNAL_OSC_SOURCE   0
 

RTT configuration

#define RTT_FREQUENCY   (32768U)
 

ADC Configuration

#define ADC_PRESCALER   ADC_CTRLB_PRESCALER_DIV256
 
#define ADC_NEG_INPUT   ADC_INPUTCTRL_MUXNEG(0x18u)
 
#define ADC_REF_DEFAULT   ADC_REFCTRL_REFSEL_INTVCC2
 
#define ADC_NUMOF   ARRAY_SIZE(adc_channels)
 
static const adc_conf_chan_t adc_channels []
 

DAC configuration

#define DAC_CLOCK   SAM0_GCLK_TIMER
 
#define DAC_VREF   DAC_CTRLB_REFSEL_VDDANA
 

USB peripheral configuration

static const sam0_common_usb_config_t sam_usbdev_config []
 

Macro Definition Documentation

◆ ADC_NEG_INPUT

#define ADC_NEG_INPUT   ADC_INPUTCTRL_MUXNEG(0x18u)

Definition at line 238 of file periph_conf.h.

◆ ADC_NUMOF

#define ADC_NUMOF   ARRAY_SIZE(adc_channels)

Definition at line 248 of file periph_conf.h.

◆ ADC_PRESCALER

#define ADC_PRESCALER   ADC_CTRLB_PRESCALER_DIV256

Definition at line 236 of file periph_conf.h.

◆ ADC_REF_DEFAULT

#define ADC_REF_DEFAULT   ADC_REFCTRL_REFSEL_INTVCC2

Definition at line 239 of file periph_conf.h.

◆ CLOCK_CORECLOCK

#define CLOCK_CORECLOCK   (48000000U)

GCLK reference speed.

Definition at line 35 of file periph_conf.h.

◆ DAC_CLOCK

#define DAC_CLOCK   SAM0_GCLK_TIMER

Definition at line 256 of file periph_conf.h.

◆ DAC_VREF

#define DAC_VREF   DAC_CTRLB_REFSEL_VDDANA

Definition at line 258 of file periph_conf.h.

◆ EXTERNAL_OSC32_SOURCE

#define EXTERNAL_OSC32_SOURCE   1

Definition at line 216 of file periph_conf.h.

◆ I2C_NUMOF

#define I2C_NUMOF   ARRAY_SIZE(i2c_config)

Definition at line 209 of file periph_conf.h.

◆ INTERNAL_OSC32_SOURCE

#define INTERNAL_OSC32_SOURCE   0

Definition at line 217 of file periph_conf.h.

◆ PWM_NUMOF

#define PWM_NUMOF   ARRAY_SIZE(pwm_config)

Definition at line 147 of file periph_conf.h.

◆ RTT_FREQUENCY

#define RTT_FREQUENCY   (32768U)

Definition at line 226 of file periph_conf.h.

◆ SPI_NUMOF

#define SPI_NUMOF   ARRAY_SIZE(spi_config)

Definition at line 190 of file periph_conf.h.

◆ TIMER_0_CHANNELS

#define TIMER_0_CHANNELS   2

Definition at line 60 of file periph_conf.h.

◆ TIMER_0_ISR

#define TIMER_0_ISR   isr_tc0

Definition at line 61 of file periph_conf.h.

◆ TIMER_NUMOF

#define TIMER_NUMOF   ARRAY_SIZE(timer_config)

Definition at line 62 of file periph_conf.h.

◆ UART_0_ISR

#define UART_0_ISR   isr_sercom3

Definition at line 115 of file periph_conf.h.

◆ UART_1_ISR

#define UART_1_ISR   isr_sercom4

Definition at line 116 of file periph_conf.h.

◆ UART_2_ISR

#define UART_2_ISR   isr_sercom1

Definition at line 117 of file periph_conf.h.

◆ UART_NUMOF

#define UART_NUMOF   ARRAY_SIZE(uart_config)

Definition at line 119 of file periph_conf.h.

◆ ULTRA_LOW_POWER_INTERNAL_OSC_SOURCE

#define ULTRA_LOW_POWER_INTERNAL_OSC_SOURCE   0

Definition at line 218 of file periph_conf.h.

◆ USE_VREG_BUCK

#define USE_VREG_BUCK   (1)

Enable the internal DC/DC converter The board is equipped with the necessary inductor.

Definition at line 41 of file periph_conf.h.

Variable Documentation

◆ adc_channels

const adc_conf_chan_t adc_channels[]
static
Initial value:
= {
{ .inputctrl = ADC_INPUTCTRL_MUXPOS_PA10 },
{ .inputctrl = ADC_INPUTCTRL_MUXPOS_PA11 },
{ .inputctrl = ADC_INPUTCTRL_MUXPOS_PA02 }
}
ADC_INPUTCTRL_MUXPOS_PA10
#define ADC_INPUTCTRL_MUXPOS_PA10
Alias for PIN18.
Definition periph_cpu.h:137
ADC_INPUTCTRL_MUXPOS_PA11
#define ADC_INPUTCTRL_MUXPOS_PA11
Alias for PIN19.
Definition periph_cpu.h:138
ADC_INPUTCTRL_MUXPOS_PA02
#define ADC_INPUTCTRL_MUXPOS_PA02
ADC pin aliases.
Definition periph_cpu.h:119

Definition at line 241 of file periph_conf.h.

◆ i2c_config

const i2c_conf_t i2c_config[]
static
Initial value:
= {
{
.dev = &(SERCOM2->I2CM),
.speed = I2C_SPEED_NORMAL,
.scl_pin = GPIO_PIN(PA, 9),
.sda_pin = GPIO_PIN(PA, 8),
.mux = GPIO_MUX_D,
.gclk_src = SAM0_GCLK_MAIN,
.flags = I2C_FLAG_NONE
}
}
GPIO_PIN
#define GPIO_PIN(x, y)
Define a CPU specific GPIO pin generator macro.
Definition periph_cpu.h:46
I2C_SPEED_NORMAL
@ I2C_SPEED_NORMAL
normal mode: ~100 kbit/s
Definition periph_cpu.h:278
PA
@ PA
port A
Definition periph_cpu_common.h:99
I2C_FLAG_NONE
@ I2C_FLAG_NONE
No flags set.
Definition periph_cpu_common.h:520
GPIO_MUX_D
@ GPIO_MUX_D
select peripheral function D
Definition periph_cpu_common.h:247
SAM0_GCLK_MAIN
#define SAM0_GCLK_MAIN
120 MHz main clock
Definition periph_cpu.h:74

Definition at line 197 of file periph_conf.h.

◆ pwm_chan0_config

const pwm_conf_chan_t pwm_chan0_config[]
static
Initial value:
= {
{
.pin = GPIO_PIN(PB, 10),
.mux = GPIO_MUX_F,
.chan = 4
},
}
PB
@ PB
port B
Definition periph_cpu_common.h:100
GPIO_MUX_F
@ GPIO_MUX_F
select peripheral function F
Definition periph_cpu_common.h:249

Definition at line 127 of file periph_conf.h.

◆ pwm_config

const pwm_conf_t pwm_config[]
static
Initial value:
= {
{
.tim = TCC_CONFIG(TCC0),
.chan = pwm_chan0_config,
.chan_numof = ARRAY_SIZE(pwm_chan0_config),
.gclk_src = SAM0_GCLK_TIMER,
},
}
ARRAY_SIZE
#define ARRAY_SIZE(a)
Calculate the number of elements in a static array.
Definition container.h:83
TCC_CONFIG
#define TCC_CONFIG(tim)
Static initializer for TCC timer configuration.
Definition periph_cpu_common.h:410
SAM0_GCLK_TIMER
#define SAM0_GCLK_TIMER
4-8 MHz clock for xTimer
Definition periph_cpu.h:79

Definition at line 137 of file periph_conf.h.

◆ sam_usbdev_config

const sam0_common_usb_config_t sam_usbdev_config[]
static
Initial value:
= {
{
.dm = GPIO_PIN(PA, 24),
.dp = GPIO_PIN(PA, 25),
.d_mux = GPIO_MUX_G,
.device = &USB->DEVICE,
.gclk_src = SAM0_GCLK_48MHZ,
}
}
GPIO_MUX_G
@ GPIO_MUX_G
select peripheral function G
Definition periph_cpu_common.h:250

Definition at line 265 of file periph_conf.h.

◆ spi_config

const spi_conf_t spi_config[]
static

Definition at line 154 of file periph_conf.h.

◆ timer_config

const tc32_conf_t timer_config[]
static
Initial value:
= {
{
.dev = TC0,
.irq = TC0_IRQn,
.mclk = &MCLK->APBCMASK.reg,
.mclk_mask = MCLK_APBCMASK_TC0 | MCLK_APBCMASK_TC1,
.gclk_id = TC0_GCLK_ID,
.gclk_src = SAM0_GCLK_TIMER,
.flags = TC_CTRLA_MODE_COUNT32,
}
}

Definition at line 47 of file periph_conf.h.

◆ uart_config

const uart_conf_t uart_config[]
static

Definition at line 69 of file periph_conf.h.