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/*
ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#include "hal.h"
/**
* @brief PAL setup.
* @details Digital I/O ports static configuration as defined in @p board.h.
* This variable is used by the HAL when initializing the PAL driver.
*/
#if HAL_USE_PAL || defined(__DOXYGEN__)
const PALConfig pal_default_config =
{
#if defined(PORTA)
{VAL_PORTA, VAL_DDRA},
#endif
#if defined(PORTB)
{VAL_PORTB, VAL_DDRB},
#endif
#if defined(PORTC)
{VAL_PORTC, VAL_DDRC},
#endif
#if defined(PORTD)
{VAL_PORTD, VAL_DDRD},
#endif
#if defined(PORTE)
{VAL_PORTE, VAL_DDRE},
#endif
#if defined(PORTF)
{VAL_PORTF, VAL_DDRF},
#endif
#if defined(PORTG)
{VAL_PORTG, VAL_DDRG},
#endif
#if defined(PORTH)
{VAL_PORTH, VAL_DDRH},
#endif
#if defined(PORTJ)
{VAL_PORTJ, VAL_DDRJ},
#endif
#if defined(PORTK)
{VAL_PORTK, VAL_DDRK},
#endif
#if defined(PORTL)
{VAL_PORTL, VAL_DDRL},
#endif
};
#endif /* HAL_USE_PAL */
/**
* @brief Timer0 interrupt handler.
*/
CH_IRQ_HANDLER(TIMER0_COMPA_vect) {
CH_IRQ_PROLOGUE();
chSysLockFromIsr();
chSysTimerHandlerI();
chSysUnlockFromIsr();
CH_IRQ_EPILOGUE();
}
/**
* Board-specific initialization code.
*/
void boardInit(void) {
/*
* External interrupts setup, all disabled initially.
*/
EICRA = 0x00;
EICRB = 0x00;
EIMSK = 0x00;
/*
* Timer 0 setup.
*/
TCCR0A = (1 << WGM01) | (0 << WGM00) | /* CTC mode. */
(0 << COM0A1) | (0 << COM0A0) | /* OC0A disabled. */
(0 << COM0B1) | (0 << COM0B0); /* OC0B disabled. */
TCCR0B = (0 << WGM02) | /* CTC mode. */
(0 << CS02) | (1 << CS01) | (1 << CS00); /* CLK/64 clock. */
OCR0A = F_CPU / 64 / CH_FREQUENCY - 1;
TCNT0 = 0; /* Reset counter. */
TIFR0 = (1 << OCF0A); /* Reset pending. */
TIMSK0 = (1 << OCIE0A); /* IRQ on compare. */
}
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