First version under SVN is V4.0.1

git-svn-id: https://freertos.svn.sourceforge.net/svnroot/freertos/trunk@4 1d2547de-c912-0410-9cb9-b8ca96c0e9e2

1 files changed, 202 insertions, 0 deletions

diff --git a/Demo/PIC18_WizC/Demo1/main.c b/Demo/PIC18_WizC/Demo1/main.c
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+/*

+	FreeRTOS V4.0.1 - Copyright (C) 2003-2006 Richard Barry.

+

+	This file is part of the FreeRTOS distribution.

+

+	FreeRTOS 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.

+

+	FreeRTOS 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 FreeRTOS; if not, write to the Free Software

+	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

+

+	A special exception to the GPL can be applied should you wish to distribute

+	a combined work that includes FreeRTOS, without being obliged to provide

+	the source code for any proprietary components.  See the licensing section 

+	of http://www.FreeRTOS.org for full details of how and when the exception

+	can be applied.

+

+	***************************************************************************

+	See http://www.FreeRTOS.org for documentation, latest information, license 

+	and contact details.  Please ensure to read the configuration and relevant 

+	port sections of the online documentation.

+	***************************************************************************

+*/

+

+/*

+Changes from V3.0.0

+

+Changes from V3.0.1

+*/

+

+/*

+ * Instead of the normal single demo application, the PIC18F demo is split 

+ * into several smaller programs of which this is the first.  This enables the 

+ * demo's to be executed on the RAM limited PIC-devices.

+ *

+ * The Demo1 project is configured for a PIC18F4620 device.  Main.c starts 9 

+ * tasks (including the idle task).

+

+ * This first demo is included to do a quick check on the FreeRTOS

+ * installation. It is also included to demonstrate a minimal project-setup

+ * to use FreeRTOS in a wizC environment.

+ *

+ * Eight independant tasks are created. All tasks share the same taskcode.

+ * Each task blinks a different led on portB. The blinkrate for each task

+ * is different, but chosen in such a way that portB will show a binary

+ * counter pattern. All blinkrates are derived from a single master-rate.

+ * By default, this  masterrate is set to 100 milliseconds. Although such

+ * a low value will make it almost impossible to see some of the leds

+ * actually blink, it is a good value when using the wizC-simulator.

+ * When testing on a real chip, changing the value to eg. 500 milliseconds

+ * would be appropiate.

+ */

+ 

+/* Scheduler include files. */

+#include <FreeRTOS.h>

+#include <task.h>

+

+#define mainBLINK_LED_INTERVAL	( ( portTickType ) 100 / ( portTICK_RATE_MS ) )

+

+/* The LED that is flashed by the B0 task. */

+#define mainBLINK_LED0_PORT		LATD

+#define mainBLINK_LED0_TRIS		TRISD

+#define mainBLINK_LED0_PIN		0

+#define mainBLINK_LED0_INTERVAL	((mainBLINK_LED_INTERVAL) << (mainBLINK_LED0_PIN))

+

+/* The LED that is flashed by the B1 task. */

+#define mainBLINK_LED1_PORT		LATD

+#define mainBLINK_LED1_TRIS		TRISD

+#define mainBLINK_LED1_PIN		1

+#define mainBLINK_LED1_INTERVAL	((mainBLINK_LED_INTERVAL) << (mainBLINK_LED1_PIN))

+

+/* The LED that is flashed by the B2 task. */

+#define mainBLINK_LED2_PORT		LATD

+#define mainBLINK_LED2_TRIS		TRISD

+#define mainBLINK_LED2_PIN		2

+#define mainBLINK_LED2_INTERVAL	((mainBLINK_LED_INTERVAL) << (mainBLINK_LED2_PIN))

+

+/* The LED that is flashed by the B3 task. */

+#define mainBLINK_LED3_PORT		LATD

+#define mainBLINK_LED3_TRIS		TRISD

+#define mainBLINK_LED3_PIN		3

+#define mainBLINK_LED3_INTERVAL	((mainBLINK_LED_INTERVAL) << (mainBLINK_LED3_PIN))

+

+/* The LED that is flashed by the B4 task. */

+#define mainBLINK_LED4_PORT		LATD

+#define mainBLINK_LED4_TRIS		TRISD

+#define mainBLINK_LED4_PIN		4

+#define mainBLINK_LED4_INTERVAL	((mainBLINK_LED_INTERVAL) << (mainBLINK_LED4_PIN))

+

+/* The LED that is flashed by the B5 task. */

+#define mainBLINK_LED5_PORT		LATD

+#define mainBLINK_LED5_TRIS		TRISD

+#define mainBLINK_LED5_PIN		5

+#define mainBLINK_LED5_INTERVAL	((mainBLINK_LED_INTERVAL) << (mainBLINK_LED5_PIN))

+

+/* The LED that is flashed by the B6 task. */

+#define mainBLINK_LED6_PORT		LATD

+#define mainBLINK_LED6_TRIS		TRISD

+#define mainBLINK_LED6_PIN		6

+#define mainBLINK_LED6_INTERVAL	((mainBLINK_LED_INTERVAL) << (mainBLINK_LED6_PIN))

+

+/* The LED that is flashed by the B7 task. */

+#define mainBLINK_LED7_PORT		LATD

+#define mainBLINK_LED7_TRIS		TRISD

+#define mainBLINK_LED7_PIN		7

+#define mainBLINK_LED7_INTERVAL	((mainBLINK_LED_INTERVAL) << (mainBLINK_LED7_PIN))

+

+typedef struct {

+	unsigned char *port;

+	unsigned char *tris;

+	unsigned char pin;

+	portTickType  interval;

+} SBLINK;

+

+const SBLINK sled0 = {&mainBLINK_LED0_PORT, &mainBLINK_LED0_TRIS, mainBLINK_LED0_PIN, mainBLINK_LED0_INTERVAL};

+const SBLINK sled1 = {&mainBLINK_LED1_PORT, &mainBLINK_LED1_TRIS, mainBLINK_LED1_PIN, mainBLINK_LED1_INTERVAL};

+const SBLINK sled2 = {&mainBLINK_LED2_PORT, &mainBLINK_LED2_TRIS, mainBLINK_LED2_PIN, mainBLINK_LED2_INTERVAL};

+const SBLINK sled3 = {&mainBLINK_LED3_PORT, &mainBLINK_LED3_TRIS, mainBLINK_LED3_PIN, mainBLINK_LED3_INTERVAL};

+const SBLINK sled4 = {&mainBLINK_LED4_PORT, &mainBLINK_LED4_TRIS, mainBLINK_LED4_PIN, mainBLINK_LED4_INTERVAL};

+const SBLINK sled5 = {&mainBLINK_LED5_PORT, &mainBLINK_LED5_TRIS, mainBLINK_LED5_PIN, mainBLINK_LED5_INTERVAL};

+const SBLINK sled6 = {&mainBLINK_LED6_PORT, &mainBLINK_LED6_TRIS, mainBLINK_LED6_PIN, mainBLINK_LED6_INTERVAL};

+const SBLINK sled7 = {&mainBLINK_LED7_PORT, &mainBLINK_LED7_TRIS, mainBLINK_LED7_PIN, mainBLINK_LED7_INTERVAL};

+

+/*

+ * The task code for the "vBlink" task.

+ */

+static portTASK_FUNCTION_PROTO(vBlink, pvParameters);

+

+/*-----------------------------------------------------------*/

+

+/*

+ * Creates the tasks, then starts the scheduler.

+ */

+void main( void )

+{

+	/*

+	 * Start the blink tasks defined in this file.

+	 */

+	xTaskCreate( vBlink,  "B0", configMINIMAL_STACK_SIZE, &sled0, tskIDLE_PRIORITY, NULL );

+	xTaskCreate( vBlink,  "B1", configMINIMAL_STACK_SIZE, &sled1, tskIDLE_PRIORITY, NULL );

+	xTaskCreate( vBlink,  "B2", configMINIMAL_STACK_SIZE, &sled2, tskIDLE_PRIORITY, NULL );

+	xTaskCreate( vBlink,  "B3", configMINIMAL_STACK_SIZE, &sled3, tskIDLE_PRIORITY, NULL );

+	xTaskCreate( vBlink,  "B4", configMINIMAL_STACK_SIZE, &sled4, tskIDLE_PRIORITY, NULL );

+	xTaskCreate( vBlink,  "B5", configMINIMAL_STACK_SIZE, &sled5, tskIDLE_PRIORITY, NULL );

+	xTaskCreate( vBlink,  "B6", configMINIMAL_STACK_SIZE, &sled6, tskIDLE_PRIORITY, NULL );

+	xTaskCreate( vBlink,  "B7", configMINIMAL_STACK_SIZE, &sled7, tskIDLE_PRIORITY, NULL );

+

+	/*

+	 * Start the scheduler.

+	 */

+	vTaskStartScheduler( );

+	

+	while(1)	/* This point should never be reached. */

+	{

+	}

+}

+/*-----------------------------------------------------------*/

+

+static portTASK_FUNCTION(vBlink, pvParameters)

+{

+	unsigned char	*Port		= ((SBLINK *)pvParameters)->port;

+	unsigned char	*Tris		= ((SBLINK *)pvParameters)->tris;

+	unsigned char	Pin			= ((SBLINK *)pvParameters)->pin;

+	portTickType	Interval	= ((SBLINK *)pvParameters)->interval;

+	

+	portTickType	xLastWakeTime;

+

+	/*

+	 * Initialize the hardware

+	 */

+	*Tris &= ~(1<<Pin);	// Set the pin that is used by this task to ouput

+	*Port &= ~(1<<Pin);	// Drive the pin low

+	

+	/*

+	 * Initialise the xLastWakeTime variable with the current time.

+	 */

+	xLastWakeTime = xTaskGetTickCount();

+

+	/*

+	 * Cycle for ever, delaying then toggle the LED.

+	 */

+	for( ;; )

+	{

+		/*

+		 * Wait until it is time to toggle

+		 */

+		vTaskDelayUntil( &xLastWakeTime, Interval );

+

+		/*

+		 * Toggle the LED for visual feedback.

+		 */

+		*Port ^= 1<<Pin;

+	}

+}