Add demos: CORTEX-M4F TM4C123GH6PM with gcc. (#9)

CORTEX_M4F_TM4C123G_Launchpad_GCC/Blinky_Demo/FreeRTOSConfig.h

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+/*
+ * FreeRTOS V202112.00
+ * 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://aws.amazon.com/freertos
+ *
+ */
+
+
+/******************************************************************************
+	See http://www.freertos.org/a00110.html for an explanation of the
+	definitions contained in this file.
+******************************************************************************/
+
+#ifndef FREERTOS_CONFIG_H
+#define FREERTOS_CONFIG_H
+
+
+/* Set mainCREATE_SIMPLE_BLINKY_DEMO_ONLY to one to run the simple blinky demo,
+or 0 to run the more comprehensive test and demo application.
+
+The comprehensive demo uses FreeRTOS+CLI to create a simple command line
+interface through a UART.
+
+*/
+
+
+/*-----------------------------------------------------------
+ * 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.
+ * https://www.FreeRTOS.org/a00110.html
+ *----------------------------------------------------------*/
+
+/* Constants related to the behaviour or the scheduler. */
+#define configUSE_PORT_OPTIMISED_TASK_SELECTION	1
+#define configUSE_PREEMPTION					1
+#define configUSE_TIME_SLICING					1
+#define configMAX_PRIORITIES					( 5 )
+#define configIDLE_SHOULD_YIELD					1
+#define configUSE_16_BIT_TICKS					0 /* Only for 8 and 16-bit hardware. */
+
+/* Constants that describe the hardware and memory usage. */
+#define configCPU_CLOCK_HZ						( ( unsigned long ) 50000000 )
+#define configMINIMAL_STACK_SIZE				( ( uint16_t ) 100 )
+#define configMAX_TASK_NAME_LEN					( 12 )
+
+/* Note heap_5.c is used so this only defines the part of the heap that is in
+the first block of RAM on the LPC device.  See the initialisation of the heap
+in main.c. */
+#define configTOTAL_HEAP_SIZE					( ( size_t ) ( 20 * 1024 ) )
+
+/* Constants that build features in or out. */
+#define configUSE_MUTEXES						1
+#define configUSE_TICKLESS_IDLE					1
+#define configUSE_APPLICATION_TASK_TAG			0
+#define configUSE_NEWLIB_REENTRANT 				0
+#define configUSE_CO_ROUTINES 					0
+#define configUSE_COUNTING_SEMAPHORES 			0
+#define configUSE_RECURSIVE_MUTEXES				0
+#define configUSE_QUEUE_SETS					0
+#define configUSE_TASK_NOTIFICATIONS			0
+#define configTASK_NOTIFICATION_ARRAY_ENTRIES	3
+
+/* Constants that define which hook (callback) functions should be used. */
+#define configUSE_IDLE_HOOK						1
+#define configUSE_TICK_HOOK						1
+#define configUSE_MALLOC_FAILED_HOOK			1
+
+/* Constants provided for debugging and optimisation assistance. */
+#define configCHECK_FOR_STACK_OVERFLOW			2
+#define configASSERT( x ) if( ( x ) == 0 ) { taskDISABLE_INTERRUPTS(); for( ;; ); }
+#define configQUEUE_REGISTRY_SIZE				0
+
+/* Set the following definitions to 1 to include the API function, or zero
+to exclude the API function.  NOTE:  Setting an INCLUDE_ parameter to 0 is only
+necessary if the linker does not automatically remove functions that are not
+referenced anyway. */
+#define INCLUDE_vTaskPrioritySet				1
+#define INCLUDE_uxTaskPriorityGet				1
+#define INCLUDE_vTaskDelete						1
+#define INCLUDE_vTaskCleanUpResources			0
+#define INCLUDE_vTaskSuspend					1
+#define INCLUDE_vTaskDelayUntil					1
+#define INCLUDE_vTaskDelay						1
+#define INCLUDE_uxTaskGetStackHighWaterMark		0
+#define INCLUDE_xTaskGetIdleTaskHandle			0
+#define INCLUDE_eTaskGetState					1
+#define INCLUDE_xTaskResumeFromISR				0
+#define INCLUDE_xTaskGetCurrentTaskHandle		1
+#define INCLUDE_xTaskGetSchedulerState			0
+#define INCLUDE_xSemaphoreGetMutexHolder		0
+#define INCLUDE_xTimerPendFunctionCall			1
+
+/* This demo makes use of one or more example stats formatting functions.  These
+format the raw data provided by the uxTaskGetSystemState() function in to human
+readable ASCII form.  See the notes in the implementation of vTaskList() within
+FreeRTOS/Source/tasks.c for limitations. */
+#define configUSE_STATS_FORMATTING_FUNCTIONS	1
+
+/* Dimensions a buffer that can be used by the FreeRTOS+CLI command
+interpreter.  See the FreeRTOS+CLI documentation for more information:
+http://www.FreeRTOS.org/FreeRTOS-Plus/FreeRTOS_Plus_CLI/ */
+#define configCOMMAND_INT_MAX_OUTPUT_SIZE		2048
+
+
+/* Cortex-M3/4 interrupt priority configuration follows...................... */
+
+/* Use the system definition, if there is one. */
+#ifdef __NVIC_PRIO_BITS
+	#define configPRIO_BITS       __NVIC_PRIO_BITS
+#else
+	#define configPRIO_BITS       3     /* 8 priority levels */
+#endif
+
+/* The lowest interrupt priority that can be used in a call to a "set priority"
+function. */
+#define configLIBRARY_LOWEST_INTERRUPT_PRIORITY			0x07
+
+/* The highest interrupt priority that can be used by any interrupt service
+routine that makes calls to interrupt safe FreeRTOS API functions.  DO NOT CALL
+INTERRUPT SAFE FREERTOS API FUNCTIONS FROM ANY INTERRUPT THAT HAS A HIGHER
+PRIORITY THAN THIS! (higher priorities are lower numeric values. */
+#define configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY	5
+
+/* Interrupt priorities used by the kernel port layer itself.  These are generic
+to all Cortex-M ports, and do not rely on any particular library functions. */
+#define configKERNEL_INTERRUPT_PRIORITY 		( configLIBRARY_LOWEST_INTERRUPT_PRIORITY << (8 - configPRIO_BITS) )
+/* !!!! configMAX_SYSCALL_INTERRUPT_PRIORITY must not be set to zero !!!!
+See http://www.FreeRTOS.org/RTOS-Cortex-M3-M4.html. */
+#define configMAX_SYSCALL_INTERRUPT_PRIORITY 	( configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY << (8 - configPRIO_BITS) )
+
+/* Definitions that map the FreeRTOS port interrupt handlers to their CMSIS
+standard names - can't be used with CCS due to limitations in the assemblers
+pre-processing. */
+#ifndef __TI_COMPILER_VERSION__
+	#define xPortPendSVHandler 	PendSV_Handler
+	#define vPortSVCHandler 	SVC_Handler
+	#define xPortSysTickHandler	SysTick_Handler
+#endif
+
+/* The trace facility is turned on to make some functions available for use in
+CLI commands. */
+#define configUSE_TRACE_FACILITY	1
+
+#define configPRINTF( X )   UARTprintf X
+
+
+void vPreSleepProcessing( uint32_t ulExpectedIdleTime );
+#define configPRE_SLEEP_PROCESSING( x ) vPreSleepProcessing( x )
+
+
+/* Constants related to the generation of run time stats.  Run time stats
+   are gathered in the full demo, not the blinky demo. */
+#define configGENERATE_RUN_TIME_STATS			0
+#define portCONFIGURE_TIMER_FOR_RUN_TIME_STATS()
+#define portGET_RUN_TIME_COUNTER_VALUE()		0
+
+/* The blinky demo can use a slow tick rate to save power. */
+#define configTICK_RATE_HZ						( ( TickType_t ) 100 )
+
+
+#endif /* FREERTOS_CONFIG_H */
+

CORTEX_M4F_TM4C123G_Launchpad_GCC/Blinky_Demo/TM4C123GH6PM.ld

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+MEMORY
+{
+    FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 0x00040000
+    SRAM (rwx) : ORIGIN = 0x20000000, LENGTH = 0X00008000
+}
+
+SECTIONS
+{
+    /* code */
+    .text :
+    {
+        _text = .;
+        /* ensure ISR vectors are not removed by linker */
+        KEEP(*(.isr_vector))
+        *(.text*)
+        *(.rodata*)
+        _etext = .;
+    } > FLASH
+
+    /* static data */
+    .data : AT(ADDR(.text) + SIZEOF(.text))
+    {
+        _data = .;
+        *(vtable)
+        *(.data*)
+        _edata = .;
+    } > SRAM
+
+    /* static uninitialized data */
+    .bss :
+    {
+        _bss = .;
+        *(.bss*)
+        *(COMMON)
+        _ebss = .;
+    } > SRAM
+
+}