Board specific definitions for the ATxmegaA1U Xplained Pro board. More...

Detailed Description

Board specific definitions for the ATxmegaA1U Xplained Pro board.

Definition in file board.h.

#include "cpu.h"
#include "macros/units.h"

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Baudrate for STDIO terminal
The standard configuration for STDIO in cpu/atxmega/periph/uart.c is to use double speed. For 32MHz F_CPU following Baudrate have good error rates 115200 Matches this with BAUD in Board/Makefile.include
#define	STDIO_UART_BAUDRATE (115200U)

LED pin definitions and handlers
#define	LED_PORT PORTQ

#define	LED0_PIN GPIO_PIN(PORT_Q, 3)

#define	LED0_MODE GPIO_OUT

#define	LED0_MASK (PIN3_bm)

#define	LED0_ON (LED_PORT.OUTCLR = LED0_MASK)

#define	LED0_OFF (LED_PORT.OUTSET = LED0_MASK)

#define	LED0_TOGGLE (LED_PORT.OUTTGL = LED0_MASK)

#define	LED_PORT_MASK (LED0_MASK)

Button pin configuration
#define	BTN0_PIN GPIO_PIN(PORT_Q, 2)

#define	BTN0_MODE (GPIO_IN \| GPIO_OPC_PU \| GPIO_SLEW_RATE)

#define	BTN0_INT_FLANK (GPIO_ISC_FALLING \| GPIO_LVL_LOW)

xtimer configuration values
if XTIMER_HZ > 1MHz then (XTIMER_HZ != (1000000ul << XTIMER_SHIFT)) if XTIMER_HZ < 1MHz then ((XTIMER_HZ << XTIMER_SHIFT) != 1000000ul) 32MHz Core Clock XTIMER_HZ 4000000 (clkdiv 8 ) XTIMER_SHIFT 2 XTIMER_HZ 1000000 () XTIMER_SHIFT 0 XTIMER_HZ 500000 (clkdiv 64) XTIMER_SHIFT 1 XTIMER_HZ 250000 (clkdiv 128) XTIMER_SHIFT 2 XTIMER_HZ 31250 (clkdiv 1024) XTIMER_SHIFT 5
#define	XTIMER_DEV TIMER_DEV(0)

#define	XTIMER_CHAN (0)

#define	XTIMER_WIDTH (16)

#define	XTIMER_HZ KHZ(500)

#define	XTIMER_BACKOFF (150)

Baudrate for STDIO terminal