[修改] 增加freeRTOS

1. 版本FreeRTOSv202212.01，命名为kernel；

kernel/FreeRTOS/Demo/PIC18_WizC/ParTest/ParTest.c

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+/*
+ * FreeRTOS V202212.01
+ * Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * https://www.FreeRTOS.org
+ * https://github.com/FreeRTOS
+ *
+ */
+
+/*
+Changes from V3.0.0
+
+Changes from V3.0.1
+*/
+
+/* Scheduler include files. */
+#include "FreeRTOS.h"
+#include <task.h>
+
+#include "partest.h"
+
+/*-----------------------------------------------------------
+ * Simple parallel port IO routines for the FED 40pin demo board.
+ * The four LED's are connected to D4 to D7.
+ *-----------------------------------------------------------*/
+
+#define partstBIT_AS_OUTPUT			( ( unsigned short ) 0 )
+#define partstSET_OUTPUT			( ( unsigned short ) 1 )
+#define partstCLEAR_OUTPUT			( ( unsigned short ) 0 )
+
+#define partstENABLE_GENERAL_IO		( ( unsigned char ) 7 )
+
+/*-----------------------------------------------------------*/
+
+void vParTestInitialise( void )
+{
+	/* Set the top four bits of port D to output. */
+	bTRD7		= partstBIT_AS_OUTPUT;
+	bTRD6		= partstBIT_AS_OUTPUT;
+	bTRD5		= partstBIT_AS_OUTPUT;
+	bTRD4		= partstBIT_AS_OUTPUT;
+
+	/* Start with all bits off. */
+	bRD7		= partstCLEAR_OUTPUT;
+	bRD6		= partstCLEAR_OUTPUT;
+	bRD5		= partstCLEAR_OUTPUT;
+	bRD4		= partstCLEAR_OUTPUT;
+
+	/* Enable the driver. */
+	ADCON1		= partstENABLE_GENERAL_IO;
+	bTRE2		= partstBIT_AS_OUTPUT;
+	bRE2		= partstSET_OUTPUT;
+}
+/*-----------------------------------------------------------*/
+
+void vParTestSetLED( unsigned char ucLED, char cValue )
+{
+	/* We are only using the top nibble, so LED 0 corresponds to bit 4. */
+	vTaskSuspendAll();
+	{
+		switch( ucLED )
+		{
+			case 3	:	bRD7 = ( short ) cValue;
+						break;
+			case 2	:	bRD6 = ( short ) cValue;
+						break;
+			case 1	:	bRD5 = ( short ) cValue;
+						break;
+			case 0	:	bRD4 = ( short ) cValue;
+						break;
+			default	:	/* There are only 4 LED's. */
+						break;
+		}
+	}
+	xTaskResumeAll();
+}
+/*-----------------------------------------------------------*/
+
+void vParTestToggleLED( unsigned char ucLED )
+{
+	/* We are only using the top nibble, so LED 0 corresponds to bit 4. */
+	vTaskSuspendAll();
+	{
+		switch( ucLED )
+		{
+			case 3	:	bRD7 = !bRD7;
+						break;
+			case 2	:	bRD6 = !bRD6;
+						break;
+			case 1	:	bRD5 = !bRD5;
+						break;
+			case 0	:	bRD4 = !bRD4 );
+						break;
+			default	:	/* There are only 4 LED's. */
+						break;
+		}
+	}
+	xTaskResumeAll();
+}
+
+
+