periph_conf.h File Reference

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_NUMOF   ARRAY_SIZE(uart_config)
 
static const uart_conf_t uart_config []
 

PWM configuration

#define PWM_0_EN   1
 
#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_8MHZ
 
#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:
= {
{GPIO_PIN(PA, 10), ADC_INPUTCTRL_MUXPOS(ADC_INPUTCTRL_MUXPOS_AIN18)},
{GPIO_PIN(PA, 11), ADC_INPUTCTRL_MUXPOS(ADC_INPUTCTRL_MUXPOS_AIN19)},
{GPIO_PIN(PA, 2), ADC_INPUTCTRL_MUXPOS(ADC_INPUTCTRL_MUXPOS_AIN0)}
}
port A
Definition: periph_cpu.h:92
#define GPIO_PIN(x, y)
Define a CPU specific GPIO pin generator macro.
Definition: periph_cpu.h:35

Definition at line 210 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
}
}
select peripheral function D
No flags set.
port A
Definition: periph_cpu.h:92
#define GPIO_PIN(x, y)
Define a CPU specific GPIO pin generator macro.
Definition: periph_cpu.h:35
normal mode: ~100 kbit/s
Definition: i2c.h:177
48 MHz main clock
Definition: periph_cpu.h:59

Definition at line 166 of file periph_conf.h.

◆ pwm_chan0_config

const pwm_conf_chan_t pwm_chan0_config[]
static
Initial value:
= {
{ GPIO_PIN(PB, 10), GPIO_MUX_F, 4 },
}
port B
Definition: periph_cpu.h:93
select peripheral function F
#define GPIO_PIN(x, y)
Define a CPU specific GPIO pin generator macro.
Definition: periph_cpu.h:35

Definition at line 115 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_8MHZ,
},
}
#define ARRAY_SIZE(a)
Calculate the number of elements in a static array.
8MHz clock
Definition: periph_cpu.h:47
#define TCC_CONFIG(tim)
Static initializer for TCC timer configuration.

Definition at line 122 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,
}
}
select peripheral function G
48MHz clock
Definition: periph_cpu.h:49
port A
Definition: periph_cpu.h:92
#define GPIO_PIN(x, y)
Define a CPU specific GPIO pin generator macro.
Definition: periph_cpu.h:35

Definition at line 234 of file periph_conf.h.

◆ spi_config

const spi_conf_t spi_config[]
static
Initial value:
= {
{
.dev = &(SERCOM0->SPI),
.miso_pin = GPIO_PIN(PA, 4),
.mosi_pin = GPIO_PIN(PA, 6),
.clk_pin = GPIO_PIN(PA, 7),
.miso_mux = GPIO_MUX_D,
.mosi_mux = GPIO_MUX_D,
.clk_mux = GPIO_MUX_D,
.miso_pad = SPI_PAD_MISO_0,
.mosi_pad = SPI_PAD_MOSI_2_SCK_3,
.gclk_src = SAM0_GCLK_MAIN,
}
}
select peripheral function D
use pad 0 for MISO line
port A
Definition: periph_cpu.h:92
use pad 2 for MOSI, pad 3 for SCK
#define GPIO_PIN(x, y)
Define a CPU specific GPIO pin generator macro.
Definition: periph_cpu.h:35
48 MHz main clock
Definition: periph_cpu.h:59

Definition at line 140 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_8MHZ,
.flags = TC_CTRLA_MODE_COUNT32,
}
}
8MHz clock
Definition: periph_cpu.h:47

Definition at line 47 of file periph_conf.h.

◆ uart_config

const uart_conf_t uart_config[]
static
Initial value:
= {
{
.dev = &SERCOM3->USART,
.rx_pin = GPIO_PIN(PA,23),
.tx_pin = GPIO_PIN(PA,22),
.mux = GPIO_MUX_C,
.rx_pad = UART_PAD_RX_1,
.tx_pad = UART_PAD_TX_0,
.flags = UART_FLAG_NONE,
.gclk_src = SAM0_GCLK_MAIN,
},
{
.dev = &SERCOM4->USART,
.rx_pin = GPIO_PIN(PB, 9),
.tx_pin = GPIO_PIN(PB, 8),
.mux = GPIO_MUX_D,
.rx_pad = UART_PAD_RX_1,
.tx_pad = UART_PAD_TX_0,
.flags = UART_FLAG_NONE,
.gclk_src = SAM0_GCLK_MAIN,
}
}
select peripheral function D
port B
Definition: periph_cpu.h:93
select pad 1
select pad 0
No flags set.
select peripheral function C
port A
Definition: periph_cpu.h:92
#define GPIO_PIN(x, y)
Define a CPU specific GPIO pin generator macro.
Definition: periph_cpu.h:35
48 MHz main clock
Definition: periph_cpu.h:59

Definition at line 69 of file periph_conf.h.