104 lines
2.5 KiB
C
104 lines
2.5 KiB
C
|
/*
|
||
|
|
* (C) Copyright 2006
|
||
|
|
* Atmel Nordic AB <www.atmel.com>
|
||
|
|
* Ulf Samuelsson <ulf@atmel.com>
|
||
|
|
*
|
||
|
|
* See file CREDITS for list of people who contributed to this
|
||
|
|
* project.
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or
|
||
|
|
* modify it under the terms of the GNU General Public License as
|
||
|
|
* published by the Free Software Foundation; either version 2 of
|
||
|
|
* the License, or (at your option) any later version.
|
||
|
|
*
|
||
|
|
* This program is distributed in the hope that it will be useful,
|
||
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
* GNU General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License
|
||
|
|
* along with this program; if not, write to the Free Software
|
||
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
||
|
|
* MA 02111-1307 USA
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <AT91RM9200.h>
|
||
|
|
|
||
|
|
#define GREEN_LED AT91C_PIO_PB0
|
||
|
|
#define YELLOW_LED AT91C_PIO_PB1
|
||
|
|
#define RED_LED AT91C_PIO_PB2
|
||
|
|
|
||
|
|
void LED_set(unsigned int led)
|
||
|
|
{
|
||
|
|
AT91PS_PIO PIOB = AT91C_BASE_PIOB;
|
||
|
|
PIOB->PIO_SODR = (led ^ 0x7) & 0x7; // All 0's => Set PIO high => OFF
|
||
|
|
PIOB->PIO_CODR = led & 0x7; // All 1's => Set PIO low => ON
|
||
|
|
}
|
||
|
|
|
||
|
|
void green_LED_on(void)
|
||
|
|
{
|
||
|
|
AT91PS_PIO PIOB = AT91C_BASE_PIOB;
|
||
|
|
// PIOB->PIO_CODR = GREEN_LED;
|
||
|
|
PIOB->PIO_CODR = (1 << 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
void yellow_LED_on(void)
|
||
|
|
{
|
||
|
|
AT91PS_PIO PIOB = AT91C_BASE_PIOB;
|
||
|
|
// PIOB->PIO_CODR = YELLOW_LED;
|
||
|
|
PIOB->PIO_CODR = (1 << 1);
|
||
|
|
}
|
||
|
|
|
||
|
|
void red_LED_on(void)
|
||
|
|
{
|
||
|
|
AT91PS_PIO PIOB = AT91C_BASE_PIOB;
|
||
|
|
// PIOB->PIO_CODR = RED_LED;
|
||
|
|
PIOB->PIO_CODR = (1 << 2);
|
||
|
|
}
|
||
|
|
|
||
|
|
void green_LED_off(void)
|
||
|
|
{
|
||
|
|
AT91PS_PIO PIOB = AT91C_BASE_PIOB;
|
||
|
|
// PIOB->PIO_SODR = GREEN_LED;
|
||
|
|
PIOB->PIO_SODR = (1 << 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
void yellow_LED_off(void)
|
||
|
|
{
|
||
|
|
AT91PS_PIO PIOB = AT91C_BASE_PIOB;
|
||
|
|
// PIOB->PIO_SODR = YELLOW_LED;
|
||
|
|
PIOB->PIO_SODR = (1 << 1);
|
||
|
|
}
|
||
|
|
|
||
|
|
void red_LED_off(void)
|
||
|
|
{
|
||
|
|
AT91PS_PIO PIOB = AT91C_BASE_PIOB;
|
||
|
|
// PIOB->PIO_SODR = RED_LED;
|
||
|
|
PIOB->PIO_SODR = (1 << 2);
|
||
|
|
}
|
||
|
|
|
||
|
|
void LED_blink(unsigned int led)
|
||
|
|
{
|
||
|
|
volatile int i,j;
|
||
|
|
for(i = 0; i < 5; i++) {
|
||
|
|
LED_set((1 << led)&0x7);
|
||
|
|
for(j= 0; j < 200000; j++);
|
||
|
|
LED_set(0);
|
||
|
|
for(j= 0; j < 200000; j++);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
void LED_init (void)
|
||
|
|
{
|
||
|
|
AT91PS_PIO PIOB = AT91C_BASE_PIOB;
|
||
|
|
AT91PS_PMC PMC = AT91C_BASE_PMC;
|
||
|
|
PMC->PMC_PCER = (1 << AT91C_ID_PIOB); // Enable PIOB clock
|
||
|
|
// Disable peripherals on LEDs
|
||
|
|
PIOB->PIO_PER = AT91C_PIO_PB2 | AT91C_PIO_PB1 | AT91C_PIO_PB0;
|
||
|
|
// Enable pins as outputs
|
||
|
|
PIOB->PIO_OER = AT91C_PIO_PB2 | AT91C_PIO_PB1 | AT91C_PIO_PB0;
|
||
|
|
// Turn all LEDs OFF
|
||
|
|
PIOB->PIO_SODR = AT91C_PIO_PB2 | AT91C_PIO_PB1 | AT91C_PIO_PB0;
|
||
|
|
}
|