[修改] 增加freeRTOS

1. 版本FreeRTOSv202212.01，命名为kernel；

kernel/FreeRTOS/Demo/ARM7_STR71x_IAR/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
+ *
+ */
+
+/* Library includes. */
+#include "GPIO.h"
+
+/* Scheduler includes. */
+#include "FreeRTOS.h"
+
+/* Demo application includes. */
+#include "partest.h"
+
+/*-----------------------------------------------------------
+ * Simple parallel port IO routines for the LED's - which are
+ * connected to the second nibble of GPIO port 1.
+ *-----------------------------------------------------------*/
+
+#define partstLED_3		0x0080
+#define partstLED_2		0x0040
+#define partstLED_1		0x0020
+#define partstLED_0		0x0010
+#define partstON_BOARD	0x0100	/* The LED built onto the KickStart board. */
+
+#define partstALL_LEDs	( partstLED_0 | partstLED_1 | partstLED_2 | partstLED_3 | partstON_BOARD )
+
+#define partstFIRST_LED_BIT 4
+
+/* This demo application uses files that are common to all port demo
+applications.  These files assume 6 LED's are available, whereas I have
+only 5 (including the LED built onto the development board).  To prevent
+two tasks trying to use the same LED a bit of remapping is performed.
+The ComTest tasks will try and use LED's 6 and 7.  LED 6 is ignored and
+has no effect, LED 7 is mapped to LED3.   The LED usage is described in
+the port documentation available from the FreeRTOS.org WEB site. */
+#define partstCOM_TEST_LED	7
+#define partstRX_CHAR_LED	3
+
+/*-----------------------------------------------------------*/
+
+void vParTestInitialise( void )
+{
+    /* Configure the bits used to flash LED's on port 1 as output. */
+    GPIO_Config(GPIO1, partstALL_LEDs, GPIO_OUT_OD);
+}
+/*-----------------------------------------------------------*/
+
+void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
+{
+	if( uxLED == partstCOM_TEST_LED )
+	{
+		/* Remap as described above. */
+		uxLED = partstRX_CHAR_LED;
+	}
+
+	/* Adjust the LED value to map to the port pins actually being used,
+	then write the required value to the port. */
+	uxLED += partstFIRST_LED_BIT;
+    GPIO_BitWrite( GPIO1, uxLED, !xValue );
+}
+/*-----------------------------------------------------------*/
+
+void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
+{
+	if( uxLED == partstCOM_TEST_LED )
+	{
+		/* Remap as described above. */
+		uxLED = partstRX_CHAR_LED;
+	}
+
+	/* Adjust the LED value to map to the port pins actually being used,
+	then write the opposite value to the current state to the port pin. */
+	uxLED += partstFIRST_LED_BIT;
+    GPIO_BitWrite(GPIO1, uxLED, ~GPIO_BitRead( GPIO1, uxLED ) );
+}
+
+
+
+