rt-thread/bsp/mb9bf500r/led.c

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2013-01-08 22:40:58 +08:00
/*
* File : led.c
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2011, RT-Thread Develop Team
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rt-thread.org/license/LICENSE
*
* Change Logs:
* Date Author Notes
* 2011-03-03 lgnq
*/
#include <rtthread.h>
#include <rthw.h>
#include "mb9bf506r.h"
#include "led.h"
void rt_hw_led_on(rt_uint8_t num)
{
RT_ASSERT(num < LEDS_MAX_NUMBER);
switch (num)
{
case 1:
LED_PDOR &= ~LED1;
break;
case 2:
LED_PDOR &= ~LED2;
break;
case 3:
LED_PDOR &= ~LED3;
break;
default:
break;
}
}
void rt_hw_led_off(rt_uint8_t num)
{
RT_ASSERT(num < LEDS_MAX_NUMBER);
switch (num)
{
case 1:
LED_PDOR |= LED1;
break;
case 2:
LED_PDOR |= LED2;
break;
case 3:
LED_PDOR |= LED3;
break;
default:
break;
}
}
void rt_hw_led_toggle(rt_uint8_t num)
{
RT_ASSERT(num < LEDS_MAX_NUMBER);
switch (num)
{
case 1:
if (LED_PDOR&LED1)
LED_PDOR &= ~LED1;
else
LED_PDOR |= LED1;
break;
case 2:
if (LED_PDOR&LED2)
LED_PDOR &= ~LED2;
else
LED_PDOR |= LED2;
break;
case 3:
if (LED_PDOR&LED3)
LED_PDOR &= ~LED3;
else
LED_PDOR |= LED3;
break;
default:
break;
}
}
static rt_err_t led_io_init(void)
{
/*Select CPIO function*/
LED_PFR &= ~LED_MASK;
/*Set Pin to turn off leds*/
LED_PDOR |= LED_MASK;
/*Make led pins outputs*/
LED_DDR |= LED_MASK;
//LED3 is controled by PWM
FM3_GPIO->PFR3 = 0x1000;
FM3_GPIO->EPFR04 = 0x00080000;
FM3_BT2_PWM->TMCR = 0x0018;
FM3_BT2_PWM->TMCR2 = 0x01; /* cks=0b1000 count clk 1/512 */
FM3_BT2_PWM->STC = 0x00;
FM3_BT2_PWM->PCSR = 0x61A; /* Down count = 1562 */
FM3_BT2_PWM->PDUT = 0x0; /* Duty count = 16/1562=10% */
FM3_BT2_PWM->TMCR |= 0x03; /* start base timer(softwere TRG) */
return RT_EOK;
}
void pwm_update(rt_uint16_t value)
{
FM3_BT2_PWM->PDUT = value;
}
static void led1_thread_entry(void *parameter)
{
while (1)
{
rt_hw_led_toggle(1);
rt_thread_delay(RT_TICK_PER_SECOND);
}
}
static void led2_thread_entry(void *parameter)
{
while (1)
{
rt_hw_led_toggle(2);
rt_thread_delay(RT_TICK_PER_SECOND/2);
}
}
static rt_thread_t led1_thread;
static rt_thread_t led2_thread;
void rt_hw_led_init(void)
{
led_io_init();
led1_thread = rt_thread_create("led1", led1_thread_entry, RT_NULL, 384, 29, 5);
if (led1_thread != RT_NULL)
rt_thread_startup(led1_thread);
led2_thread = rt_thread_create("led2", led2_thread_entry, RT_NULL, 384, 30, 5);
if (led2_thread != RT_NULL)
rt_thread_startup(led2_thread);
}