IBDT Ranging Hardware with ATmega644 + AT86RF231. More...

Defines
#define	DDR_KEY DDRD
#define	DDR_SPI (DDRB)
#define	DDR_TRX_RESET DDRD
#define	DDR_TRX_SLPTR DDRD
#define	DEFAULT_SPI_RATE (SPI_RATE_1_2)
#define	DI_TRX_IRQ() {EIMSK &= (~(TRX_IRQ));}
#define	EI_TRX_IRQ() {EIMSK \|= (TRX_IRQ);}
#define	HIF_TYPE HIF_UART_0
#define	HWTIMER_REG (TCNT1)
#define	HWTIMER_TICK ((1.0*HWTMR_PRESCALE)/F_CPU)
#define	HWTIMER_TICK_NB (0.001/HWTIMER_TICK)
#define	HWTMR_PRESCALE (64)
#define	INVERSE_KEYS (1)
#define	LED_DDR DDRD
#define	LED_MASK (0x30)
#define	LED_NUMBER (2)
#define	LED_PORT PORTD
#define	LED_SHIFT (4)
#define	LEDS_INVERSE (1)
#define	MASK_KEY (0x0C)
#define	MASK_TRX_RESET (_BV(PD6))
#define	MASK_TRX_SLPTR (_BV(PD7))
#define	PIN_KEY PIND
#define	PORT_KEY PORTD
#define	PORT_SPI (PORTB)
#define	PORT_TRX_RESET PORTD
#define	PORT_TRX_SLPTR PORTD
#define	PULLUP_KEYS (1)
#define	SHIFT_KEY (2)
#define	SLEEP_ON_KEY()
#define	SLEEP_ON_KEY_INIT()
#define	SLEEP_ON_KEY_vect PCINT0_vect
#define	SPI_DATA_REG SPDR
#define	SPI_MISO _BV(PB6)
#define	SPI_MOSI _BV(PB5)
#define	SPI_SCK _BV(PB7)
#define	SPI_SELN_HIGH() PORT_SPI \|= SPI_SS; SREG = sreg
#define	SPI_SELN_LOW() uint8_t sreg = SREG; cli(); PORT_SPI &=~SPI_SS
#define	SPI_SS _BV(PB4)
#define	SPI_TYPE SPI_TYPE_SPI
#define	SPI_WAITFOR() do { while((SPSR & _BV(SPIF)) == 0);} while(0)
#define	TIMER_INIT()
#define	TIMER_IRQ_vect TIMER0_COMPA_vect
#define	TIMER_POOL_SIZE (8)
#define	TIMER_TICK (HWTIMER_TICK * HWTIMER_TICK_NB)
#define	TRX_IRQ _BV(INT2)
#define	TRX_IRQ_INIT()
#define	TRX_IRQ_vect INT2_vect
#define	TRX_TSTAMP_REG TCNT1

Detailed Description

IBDT Ranging Hardware with ATmega644 + AT86RF231.

The wiring of the radio and the ATmega is shown below:

     AVR       RF231
     ---       -----

     PD3:2   <--  KEY
     PD5:4 -->  LED

Build Options

Define Documentation

#define DDR_KEY DDRD

DDR register for keys

#define DDR_SPI (DDRB)

DDR register for SPI port

#define DDR_TRX_RESET DDRD

DDR register for RESET pin

#define DDR_TRX_SLPTR DDRD

PORT register for SLP_TR pin

#define DEFAULT_SPI_RATE (SPI_RATE_1_2)

ID String for this hardware

#define DI_TRX_IRQ ( ) {EIMSK &= (~(TRX_IRQ));}

high level INT0 disable TRX interrupt

#define EI_TRX_IRQ ( ) {EIMSK |= (TRX_IRQ);}

enable TRX interrupt

#define HIF_TYPE HIF_UART_0

Type of the host interface.

#define HWTIMER_REG (TCNT1)

name of the register where the clock ticks can be read

#define HWTIMER_TICK ((1.0*HWTMR_PRESCALE)/F_CPU)

hardware timer clock period in us (usually: prescaler / F_CPU)

#define HWTIMER_TICK_NB (0.001/HWTIMER_TICK)

number of hardware timer ticks, when IRQ routine is called, set to 1ms

#define INVERSE_KEYS (1)

= 1, if low level at port means KEY pressed

#define LED_DDR DDRD

DDR register for LEDs

#define LED_MASK (0x30)

MASK value for LEDs (msb aligned)

#define LED_NUMBER (2)

number of LEDs for this board

#define LED_PORT PORTD

PORT register for LEDs

#define LED_SHIFT (4)

SHIFT value for LEDs

#define LEDS_INVERSE (1)

= 1, if low level at port means LED on

#define MASK_KEY (0x0C)

MASK value for keys (msb aligned)

#define MASK_TRX_RESET (_BV(PD6))

PIN mask for RESET pin

#define MASK_TRX_SLPTR (_BV(PD7))

PIN mask for SLP_TR pin

#define PIN_KEY PIND

PIN register for keys

#define PORT_KEY PORTD

PORT register for keys

#define PORT_SPI (PORTB)

PORT register for SPI port

#define PORT_TRX_RESET PORTD

PORT register for RESET pin

#define PORT_TRX_SLPTR PORTD

DDR register for SLP_TR pin

#define SHIFT_KEY (2)

SHIFT value for keys

#define SLEEP_ON_KEY ( )

Value:

do{\
            EIMSK |= _BV(PCIE0);\
            set_sleep_mode(SLEEP_MODE_PWR_DOWN);\
            sleep_mode();\
            EIMSK &= ~_BV(PCIE0);\
        } while(0)

#define SLEEP_ON_KEY_INIT ( )

Value:

do{\
            PCMSK0 |= _BV(PCINT2);\
        }while(0)

#define SPI_DATA_REG SPDR

abstraction for SPI data register

#define SPI_MISO _BV(PB6)

PIN mask for MISO pin

#define SPI_MOSI _BV(PB5)

PIN mask for MOSI pin

#define SPI_SCK _BV(PB7)

PIN mask for SCK pin

#define SPI_SELN_HIGH ( ) PORT_SPI |= SPI_SS; SREG = sreg

set SS line to high level

#define SPI_SELN_LOW ( ) uint8_t sreg = SREG; cli(); PORT_SPI &=~SPI_SS

set SS line to low level

#define SPI_SS _BV(PB4)

PIN mask for SS pin

#define SPI_WAITFOR ( ) do { while((SPSR & _BV(SPIF)) == 0);} while(0)

wait until SPI transfer is ready

#define TIMER_INIT ( )

Value:

do{\
        TCCR0B = _BV(CS01) | _BV(CS00);\
        TCCR0B |= _BV(WGM02); \
        OCR0A = HWTIMER_TICK_NB; \
        TIMSK0 |= _BV(OCIE0A);\
    }while(0)

#define TIMER_IRQ_vect TIMER0_COMPA_vect

symbolic name of the timer interrupt routine that is called

#define TIMER_POOL_SIZE (8)

number of software timers running at a time

#define TIMER_TICK (HWTIMER_TICK * HWTIMER_TICK_NB)

period in us, when the timer interrupt routine is called

#define TRX_IRQ _BV(INT2)

interrupt mask for GICR

#define TRX_IRQ_INIT ( )

Value:

do{\
                            EICRA = _BV(ISC20) | _BV(ISC21);\
                            EIMSK  |= (TRX_IRQ);\
                          } while(0)

configuration of interrupt handling

#define TRX_IRQ_vect INT2_vect

interrupt vector name

#define TRX_TSTAMP_REG TCNT1

timestamp register for RX_START event

board_ibdt.h File Reference

Defines

Detailed Description

Define Documentation