git-svn-id: https://rt-thread.googlecode.com/svn/trunk@246 bbd45198-f89e-11dd-88c7-29a3b14d5316

bsp/mini2440/SConstruct

@@ -35,7 +35,7 @@ if rtconfig.RT_USING_DFS:
 if rtconfig.RT_USING_LWIP:
 	objs = objs + SConscript(RTT_ROOT + '/net/lwip/SConscript', variant_dir='build/net/lwip', duplicate=0)
 
-src_bsp = ['application.c', 'startup.c', 'board.c']
+src_bsp = ['application.c', 'startup.c', 'board.c','led.c']
 src_drv = ['console.c']
 
 if rtconfig.RT_USING_DFS:

bsp/mini2440/application.c

@@ -20,6 +20,7 @@
 
 #include <board.h>
 #include <rtthread.h>
+#include "led.h"
 
 #ifdef RT_USING_DFS
 /* dfs init */
@@ -87,23 +88,50 @@ void rt_init_thread_entry(void* parameter)
 #endif
 }
 
+void rt_led_thread_entry(void* parameter)
+{
+	while(1)
+	{
+		/* led on 1s */
+		rt_hw_led_on(LED2|LED3);
+		rt_thread_delay(100);
+
+		/* led off 1s */
+		rt_hw_led_off(LED2|LED3);
+		rt_thread_delay(100);
+
+	}
+}
+
 int rt_application_init()
 {
 	rt_thread_t init_thread;
+	rt_thread_t led_thread;
 
 #if (RT_THREAD_PRIORITY_MAX == 32)
 	init_thread = rt_thread_create("init",
 								rt_init_thread_entry, RT_NULL,
 								2048, 8, 20);
+
+	led_thread = rt_thread_create("led",
+								rt_led_thread_entry, RT_NULL,
+								512, 20, 20);
 #else
 	init_thread = rt_thread_create("init",
 								rt_init_thread_entry, RT_NULL,
 								2048, 80, 20);
+
+	led_thread = rt_thread_create("led",
+								rt_led_thread_entry, RT_NULL,
+								512, 200, 20);
 #endif
 
 	if (init_thread != RT_NULL)
 		rt_thread_startup(init_thread);
 
+	if(led_thread != RT_NULL)
+		rt_thread_startup(led_thread);
+
 	return 0;
 }
 

bsp/mini2440/board.c

@@ -19,6 +19,7 @@
 #include <rthw.h>
 
 #include "board.h"
+#include "led.h"
 
 /**
  * @addtogroup mini2440
@@ -41,7 +42,6 @@ extern void rt_hw_get_clock(void);
 extern void rt_hw_set_dividor(rt_uint8_t hdivn, rt_uint8_t pdivn);
 extern void rt_hw_set_clock(rt_uint8_t sdiv, rt_uint8_t pdiv, rt_uint8_t mdiv);
 
-static rt_uint32_t timer_load_val = 0;
 
 #define UART0	((struct uartport *)U0BASE)
 struct serial_int_rx uart0_int_rx;
@@ -58,9 +58,6 @@ struct rt_device uart0_device;
  */
 void rt_timer_handler(int vector)
 {
-	/* reset TDATA0 */
-	TCNTB4 = timer_load_val;
-
 	rt_tick_increase();
 }
 
@@ -115,6 +112,29 @@ void rt_hw_uart_init(void)
 	rt_hw_interrupt_umask(INTUART0);
 }
 
+/**
+ * This function will init timer4 for system ticks
+ */
+ void rt_hw_timer_init()
+ {
+	/* timer4, pre = 15+1 */
+	TCFG0 &= 0xffff00ff;
+	TCFG0 |= 15 << 8;
+	/* all are interrupt mode,set Timer 4 MUX 1/4 */
+	TCFG1  &= 0xfff0ffff;
+	TCFG1  |= 0x00010000;
+
+	TCNTB4 = (rt_int32_t)(PCLK / (4 *16* RT_TICK_PER_SECOND)) - 1;
+	/* manual update */
+	TCON = TCON & (~(0x0f<<20)) | (0x02<<20);
+	/* install interrupt handler */
+	rt_hw_interrupt_install(INTTIMER4, rt_timer_handler, RT_NULL);
+	rt_hw_interrupt_umask(INTTIMER4);
+
+    /* start timer4, reload */
+	TCON = TCON & (~(0x0f<<20)) | (0x05<<20);
+ }
+
 /**
  * This function will init s3ceb2410 board
  */
@@ -126,6 +146,9 @@ void rt_hw_board_init()
 	/* Get the clock */
 	rt_hw_get_clock();
 
+	/* initialize led port */
+	rt_hw_led_init();
+
 	/* initialize uart */
 	rt_hw_uart_init();
 
@@ -139,12 +162,8 @@ void rt_hw_board_init()
 	rt_hw_touch_init();
 #endif
 
-	/* install interrupt handler */
-	rt_hw_interrupt_install(INTTIMER4, rt_timer_handler, RT_NULL);
-	rt_hw_interrupt_umask(INTTIMER4);
-
-	/* stop timer 	*/
-	/* TCON = 0x0;	*/
+	/* initialize timer4 */
+	rt_hw_timer_init();
 }
 
 /*@}*/

bsp/mini2440/led.c

@@ -0,0 +1,35 @@
+/*
+ * File      : led.c
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006, 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
+ * 2009-12-27     rdghx        mini2440
+ */
+
+#include <s3c24x0.h>
+#include "led.h"
+
+void rt_hw_led_init(void)
+{
+	/* GPB5,GPB6,GPB7,GPB8 for LED */
+	GPBCON = GPBCON & (~(0xff << 10)) | (0x55 << 10);
+	GPBUP  |= (0x0f << 5);
+}
+
+void rt_hw_led_on(unsigned char value)
+{
+	GPBDAT &= ~ ((value & 0x0f) << 5);
+}
+
+void rt_hw_led_off(unsigned char value)
+{
+	GPBDAT |= (value & 0x0f) << 5;
+}
+
+

bsp/mini2440/led.h

@@ -0,0 +1,28 @@
+/*
+ * File      : led.h
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006, 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
+ * 2009-12-27     rdghx        mini2440
+ */
+
+#ifndef __LED_H__
+#define __LED_H__
+
+#define LED1    0x01
+#define LED2    0x02
+#define LED3    0x04
+#define LED4    0x08
+#define LED_ALL 0x0f
+
+void rt_hw_led_init(void);
+void rt_hw_led_on(unsigned char value);
+void rt_hw_led_off(unsigned char value);
+
+#endif