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

5 files changed, 121 insertions, 11 deletions

diff --git a/bsp/mini2440/SConstruct b/bsp/mini2440/SConstruct
index da6b4e589f..97161e70fe 100644
--- a/bsp/mini2440/SConstruct
+++ b/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:

diff --git a/bsp/mini2440/application.c b/bsp/mini2440/application.c
index 24c62ac67b..2695e75cb4 100644
--- a/bsp/mini2440/application.c
+++ b/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;

 }

 

diff --git a/bsp/mini2440/board.c b/bsp/mini2440/board.c
index 7b6a1d862c..cba3915356 100644
--- a/bsp/mini2440/board.c
+++ b/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();
 }
 
@@ -116,6 +113,29 @@ void rt_hw_uart_init(void)
 }
 
 /**
+ * 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
  */
 void rt_hw_board_init()
@@ -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();
 }
 
 /*@}*/
diff --git a/bsp/mini2440/led.c b/bsp/mini2440/led.c
new file mode 100644
index 0000000000..246c1cf307
--- /dev/null
+++ b/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;

+}

+

+

diff --git a/bsp/mini2440/led.h b/bsp/mini2440/led.h
new file mode 100644
index 0000000000..874353ebc3
--- /dev/null
+++ b/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