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 []
 

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:133
ADC_INPUTCTRL_MUXPOS_PA11
#define ADC_INPUTCTRL_MUXPOS_PA11
Alias for PIN19.
Definition: periph_cpu.h:134
ADC_INPUTCTRL_MUXPOS_PA02
#define ADC_INPUTCTRL_MUXPOS_PA02
ADC pin aliases.
Definition: periph_cpu.h:115

Definition at line 237 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:42
I2C_SPEED_NORMAL
@ I2C_SPEED_NORMAL
normal mode: ~100 kbit/s
Definition: periph_cpu.h:274
PA
@ PA
port A
Definition: periph_cpu_common.h:95
I2C_FLAG_NONE
@ I2C_FLAG_NONE
No flags set.
Definition: periph_cpu_common.h:516
GPIO_MUX_D
@ GPIO_MUX_D
select peripheral function D
Definition: periph_cpu_common.h:243
SAM0_GCLK_MAIN
#define SAM0_GCLK_MAIN
120 MHz main clock
Definition: periph_cpu.h:70

Definition at line 193 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:96
GPIO_MUX_F
@ GPIO_MUX_F
select peripheral function F
Definition: periph_cpu_common.h:245

Definition at line 123 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:82
TCC_CONFIG
#define TCC_CONFIG(tim)
Static initializer for TCC timer configuration.
Definition: periph_cpu_common.h:406
SAM0_GCLK_TIMER
@ SAM0_GCLK_TIMER
4/8MHz clock for timers
Definition: periph_cpu.h:67

Definition at line 133 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:246
SAM0_GCLK_48MHZ
@ SAM0_GCLK_48MHZ
48MHz clock
Definition: periph_cpu.h:69

Definition at line 261 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_Msk | MCLK_APBCMASK_TC1_Msk,
.gclk_id = TC0_GCLK_ID,
.gclk_src = SAM0_GCLK_TIMER,
.flags = TC_CTRLA_MODE_COUNT32,
}
}

Definition at line 43 of file periph_conf.h.