[修改] 增加freeRTOS

1. 版本FreeRTOSv202212.01，命名为kernel；

kernel/FreeRTOS/Demo/msp430_IAR/FreeRTOSConfig.h

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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
+ *
+ */
+
+#ifndef FREERTOS_CONFIG_H
+#define FREERTOS_CONFIG_H
+
+#include <msp430x44x.h>
+
+/*
+Two interrupt examples are provided -
+
+ + Method 1 does everything in C code.
+ + Method 2 uses an assembly file wrapper.
+
+Code size:
+Method 1 uses assembly macros to save and restore the task context, whereas
+method 2 uses functions. This means method 1 will be faster, but method 2 will
+use less code space.
+
+Simplicity:
+Method 1 is very simplistic, whereas method 2 is more elaborate. This
+elaboration results in the code space saving, but also requires a slightly more
+complex procedure to define interrupt service routines.
+
+Interrupt efficiency:
+Method 1 uses the compiler generated function prologue and epilogue code to save
+and restore the necessary registers within an interrupt service routine (other
+than the RTOS tick ISR). Should a context switch be required from within the ISR
+the entire processor context is saved. This can result in some registers being saved
+twice - once by the compiler generated code, and then again by the FreeRTOS code.
+Method 2 saves and restores all the processor registers within each interrupt service
+routine, whether or not a context switch actually occurs. This means no registers
+ever get saved twice, but imposes an overhead on the occasions that no context switch
+occurs.
+*/
+
+#define configINTERRUPT_EXAMPLE_METHOD 1
+
+/*-----------------------------------------------------------
+ * Application specific definitions.
+ *
+ * These definitions should be adjusted for your particular hardware and
+ * application requirements.
+ *
+ * THESE PARAMETERS ARE DESCRIBED WITHIN THE 'CONFIGURATION' SECTION OF THE
+ * FreeRTOS API DOCUMENTATION AVAILABLE ON THE FreeRTOS.org WEB SITE.
+ *
+ * See http://www.freertos.org/a00110.html
+ *----------------------------------------------------------*/
+
+#define configUSE_PREEMPTION		1
+#define configUSE_IDLE_HOOK			1
+#define configUSE_TICK_HOOK			0
+#define configCPU_CLOCK_HZ			( ( unsigned long ) 7995392 ) /* Clock setup from main.c in the demo application. */
+#define configTICK_RATE_HZ			( ( TickType_t ) 1000 )
+#define configMAX_PRIORITIES		( 4 )
+#define configMINIMAL_STACK_SIZE	( ( unsigned short ) 50 )
+#define configTOTAL_HEAP_SIZE		( ( size_t ) ( 1700 ) )
+#define configMAX_TASK_NAME_LEN		( 8 )
+#define configUSE_TRACE_FACILITY	0
+#define configUSE_16_BIT_TICKS		1
+#define configIDLE_SHOULD_YIELD		1
+
+
+/* Set the following definitions to 1 to include the API function, or zero
+to exclude the API function. */
+
+#define INCLUDE_vTaskPrioritySet			0
+#define INCLUDE_uxTaskPriorityGet			0
+#define INCLUDE_vTaskDelete					1
+#define INCLUDE_vTaskCleanUpResources		0
+#define INCLUDE_vTaskSuspend				0
+#define INCLUDE_vTaskDelayUntil				1
+#define INCLUDE_vTaskDelay					1
+#define INCLUDE_uxTaskGetStackHighWaterMark 0
+
+#endif /* FREERTOS_CONFIG_H */