[修改] 增加freeRTOS

1. 版本FreeRTOSv202212.01，命名为kernel；

kernel/FreeRTOS/Demo/ARM7_LPC2106_GCC/ParTest/ParTest.c

@@ -0,0 +1,100 @@
+/*
+ * 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 V2.5.2
+
+	+ All LED's are turned off to start.
+*/
+
+
+#include "FreeRTOS.h"
+#include "partest.h"
+
+#define partstFIRST_IO			( ( unsigned long ) 0x400 )
+#define partstNUM_LEDS			( 4 )
+#define partstALL_OUTPUTS_OFF	( ( unsigned long ) 0xffffffff )
+
+/*-----------------------------------------------------------
+ * Simple parallel port IO routines.
+ *-----------------------------------------------------------*/
+
+void vParTestInitialise( void )
+{
+	/* This is performed from main() as the io bits are shared with other setup
+	functions. */
+
+	/* Turn all outputs off. */
+	GPIO_IOSET = partstALL_OUTPUTS_OFF;
+}
+/*-----------------------------------------------------------*/
+
+void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
+{
+unsigned long ulLED = partstFIRST_IO;
+
+	if( uxLED < partstNUM_LEDS )
+	{
+		/* Rotate to the wanted bit of port 0.  Only P10 to P13 have an LED
+		attached. */
+		ulLED <<= ( unsigned long ) uxLED;
+
+		/* Set of clear the output. */
+		if( xValue )
+		{
+			GPIO_IOCLR = ulLED;
+		}
+		else
+		{
+			GPIO_IOSET = ulLED;
+		}
+	}
+}
+/*-----------------------------------------------------------*/
+
+void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
+{
+unsigned long ulLED = partstFIRST_IO, ulCurrentState;
+
+	if( uxLED < partstNUM_LEDS )
+	{
+		/* Rotate to the wanted bit of port 0.  Only P10 to P13 have an LED
+		attached. */
+		ulLED <<= ( unsigned long ) uxLED;
+
+		/* If this bit is already set, clear it, and vice versa. */
+		ulCurrentState = GPIO0_IOPIN;
+		if( ulCurrentState & ulLED )
+		{
+			GPIO_IOCLR = ulLED;
+		}
+		else
+		{
+			GPIO_IOSET = ulLED;
+		}
+	}
+}
+