--- /dev/null
+/*\r
+ FreeRTOS V7.0.0 - Copyright (C) 2011 Real Time Engineers Ltd.\r
+\r
+\r
+ FreeRTOS supports many tools and architectures. V7.0.0 is sponsored by:\r
+ Atollic AB - Atollic provides professional embedded systems development\r
+ tools for C/C++ development, code analysis and test automation.\r
+ See http://www.atollic.com\r
+\r
+\r
+ ***************************************************************************\r
+ * *\r
+ * FreeRTOS tutorial books are available in pdf and paperback. *\r
+ * Complete, revised, and edited pdf reference manuals are also *\r
+ * available. *\r
+ * *\r
+ * Purchasing FreeRTOS documentation will not only help you, by *\r
+ * ensuring you get running as quickly as possible and with an *\r
+ * in-depth knowledge of how to use FreeRTOS, it will also help *\r
+ * the FreeRTOS project to continue with its mission of providing *\r
+ * professional grade, cross platform, de facto standard solutions *\r
+ * for microcontrollers - completely free of charge! *\r
+ * *\r
+ * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
+ * *\r
+ * Thank you for using FreeRTOS, and thank you for your support! *\r
+ * *\r
+ ***************************************************************************\r
+\r
+\r
+ This file is part of the FreeRTOS distribution.\r
+\r
+ FreeRTOS is free software; you can redistribute it and/or modify it under\r
+ the terms of the GNU General Public License (version 2) as published by the\r
+ Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
+ >>>NOTE<<< The modification to the GPL is included to allow you to\r
+ distribute a combined work that includes FreeRTOS without being obliged to\r
+ provide the source code for proprietary components outside of the FreeRTOS\r
+ kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
+ WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
+ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
+ more details. You should have received a copy of the GNU General Public\r
+ License and the FreeRTOS license exception along with FreeRTOS; if not it\r
+ can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
+ by writing to Richard Barry, contact details for whom are available on the\r
+ FreeRTOS WEB site.\r
+\r
+ 1 tab == 4 spaces!\r
+\r
+ http://www.FreeRTOS.org - Documentation, latest information, license and\r
+ contact details.\r
+\r
+ http://www.SafeRTOS.com - A version that is certified for use in safety\r
+ critical systems.\r
+\r
+ http://www.OpenRTOS.com - Commercial support, development, porting,\r
+ licensing and training services.\r
+*/\r
+\r
+/*\r
+ * main-blinky.c is included when the "Blinky" build configuration is used.\r
+ * main-full.c is included when the "Full" build configuration is used.\r
+ *\r
+ * main-full.c (this file) defines a comprehensive demo that creates many\r
+ * tasks, queues, semaphores and timers. It also demonstrates how Cortex-M3\r
+ * interrupts can interact with FreeRTOS tasks/timers, and implements a simple\r
+ * and small interactive web server.\r
+ *\r
+ * This project runs on the SmartFusion A2F-EVAL-KIT evaluation board, which\r
+ * is populated with an A2F200M3F SmartFusion mixed signal FPGA. The A2F200M3F\r
+ * incorporates a Cortex-M3 microcontroller.\r
+ *\r
+ * The main() Function:\r
+ * main() creates two demo specific software timers, one demo specific queue,\r
+ * and three demo specific tasks. It then creates a whole host of 'standard\r
+ * demo' tasks/queues/semaphores, before starting the scheduler. The demo\r
+ * specific tasks and timers are described in the comments here. The standard\r
+ * demo tasks are described on the FreeRTOS.org web site.\r
+ *\r
+ * The standard demo tasks provide no specific functionality. They are\r
+ * included to both test the FreeRTOS port, and provide examples of how the\r
+ * various FreeRTOS API functions can be used.\r
+ *\r
+ * The Demo Specific Queue Send Task:\r
+ * The queue send task is implemented by the prvQueueSendTask() function in\r
+ * this file. prvQueueSendTask() sits in a loop that causes it to repeatedly\r
+ * block for 200 milliseconds, before sending the value 100 to the queue that\r
+ * was created within main(). Once the value is sent, the task loops back\r
+ * around to block for another 200 milliseconds.\r
+ *\r
+ * The Demo Specific Queue Receive Task:\r
+ * The queue receive task is implemented by the prvQueueReceiveTask() function\r
+ * in this file. prvQueueReceiveTask() sits in a loop that causes it to\r
+ * repeatedly attempt to read data from the queue that was created within\r
+ * main(). When data is received, the task checks the value of the data, and\r
+ * if the value equals the expected 100, toggles the green LED. The 'block\r
+ * time' parameter passed to the queue receive function specifies that the task\r
+ * should be held in the Blocked state indefinitely to wait for data to be\r
+ * available on the queue. The queue receive task will only leave the Blocked\r
+ * state when the queue send task writes to the queue. As the queue send task\r
+ * writes to the queue every 200 milliseconds, the queue receive task leaves\r
+ * the Blocked state every 200 milliseconds, and therefore toggles the LED\r
+ * every 200 milliseconds.\r
+ *\r
+ * The Demo Specific OLED Task:\r
+ * The OLED task is a very simple task that just scrolls a message across the\r
+ * OLED. Ideally this would be done in a timer, but the OLED driver accesses\r
+ * the I2C which is time consuming.\r
+ *\r
+ * The Demo Specific LED Software Timer and the Button Interrupt:\r
+ * The user button SW1 is configured to generate an interrupt each time it is\r
+ * pressed. The interrupt service routine switches an LED on, and resets the\r
+ * LED software timer. The LED timer has a 5000 millisecond (5 second) period,\r
+ * and uses a callback function that is defined to just turn the LED off again.\r
+ * Therefore, pressing the user button will turn the LED on, and the LED will\r
+ * remain on until a full five seconds pass without the button being pressed.\r
+ *\r
+ * The Demo Specific "Check" Callback Function:\r
+ * This is called each time the 'check' timer expires. The check timer\r
+ * callback function inspects all the standard demo tasks to see if they are\r
+ * all executing as expected. The check timer is initially configured to\r
+ * expire every three seconds, but will shorted this to every 500ms if an error\r
+ * is ever discovered. The check timer callback toggles the LED defined by\r
+ * the mainCHECK_LED definition each time it executes. Therefore, if LED\r
+ * mainCHECK_LED is toggling every three seconds, then no error have been found.\r
+ * If LED mainCHECK_LED is toggling every 500ms, then at least one errors has\r
+ * been found. The task in which the error was discovered is displayed at the\r
+ * bottom of the "task stats" page that is served by the embedded web server.\r
+ *\r
+ * The Demo Specific Idle Hook Function:\r
+ * The idle hook function demonstrates how to query the amount of FreeRTOS heap\r
+ * space that is remaining (see vApplicationIdleHook() defined in this file).\r
+ *\r
+ * The Web Server Task:\r
+ * The IP address used by the SmartFusion target is configured by the\r
+ * definitions configIP_ADDR0 to configIP_ADDR3, which are located in the\r
+ * FreeRTOSConfig.h header file. See the documentation page for this example\r
+ * on the http://www.FreeRTOS.org web site for further connection information.\r
+ */\r
+\r
+/* Kernel includes. */\r
+#include "FreeRTOS.h"\r
+#include "task.h"\r
+#include "queue.h"\r
+#include "timers.h"\r
+\r
+/* Microsemi drivers/libraries includes. */\r
+#include "mss_gpio.h"\r
+#include "mss_watchdog.h"\r
+#include "mss_timer.h"\r
+#include "mss_ace.h"\r
+#include "oled.h"\r
+\r
+/* Common demo includes. */\r
+#include "partest.h"\r
+#include "flash.h"\r
+#include "BlockQ.h"\r
+#include "death.h"\r
+#include "blocktim.h"\r
+#include "semtest.h"\r
+#include "GenQTest.h"\r
+#include "QPeek.h"\r
+#include "recmutex.h"\r
+#include "TimerDemo.h"\r
+\r
+/* Priorities at which the tasks are created. */\r
+#define mainQUEUE_RECEIVE_TASK_PRIORITY ( tskIDLE_PRIORITY + 2 )\r
+#define mainQUEUE_SEND_TASK_PRIORITY ( tskIDLE_PRIORITY + 1 )\r
+\r
+/* The rate at which data is sent to the queue, specified in milliseconds, and\r
+converted to ticks using the portTICK_RATE_MS constant. */\r
+#define mainQUEUE_SEND_FREQUENCY_MS ( 200 / portTICK_RATE_MS )\r
+\r
+/* The number of items the queue can hold. This is 1 as the receive task\r
+will remove items as they are added, meaning the send task should always find\r
+the queue empty. */\r
+#define mainQUEUE_LENGTH ( 1 )\r
+\r
+/* The LED toggled by the check timer callback function. */\r
+#define mainCHECK_LED 0x07UL\r
+\r
+/* The LED turned on by the button interrupt, and turned off by the LED timer. */\r
+#define mainTIMER_CONTROLLED_LED 0x06UL\r
+\r
+/* The LED toggle by the queue receive task. */\r
+#define mainTASK_CONTROLLED_LED 0x05UL\r
+\r
+/* Constant used by the standard timer test functions. */\r
+#define mainTIMER_TEST_PERIOD ( 50 )\r
+\r
+/* Priorities used by the various different tasks. */\r
+#define mainCHECK_TASK_PRIORITY ( configMAX_PRIORITIES - 1 )\r
+#define mainQUEUE_POLL_PRIORITY ( tskIDLE_PRIORITY + 1 )\r
+#define mainSEM_TEST_PRIORITY ( tskIDLE_PRIORITY + 1 )\r
+#define mainBLOCK_Q_PRIORITY ( tskIDLE_PRIORITY + 2 )\r
+#define mainCREATOR_TASK_PRIORITY ( tskIDLE_PRIORITY + 3 )\r
+#define mainFLASH_TASK_PRIORITY ( tskIDLE_PRIORITY + 1 )\r
+#define mainuIP_TASK_PRIORITY ( tskIDLE_PRIORITY + 2 )\r
+#define mainOLED_TASK_PRIORITY ( tskIDLE_PRIORITY + 1 )\r
+#define mainINTEGER_TASK_PRIORITY ( tskIDLE_PRIORITY )\r
+#define mainGEN_QUEUE_TASK_PRIORITY ( tskIDLE_PRIORITY )\r
+\r
+/* The WEB server uses string handling functions, which in turn use a bit more\r
+stack than most of the other tasks. */\r
+#define mainuIP_STACK_SIZE ( configMINIMAL_STACK_SIZE * 3 )\r
+\r
+/* The period at which the check timer will expire, in ms, provided no errors\r
+have been reported by any of the standard demo tasks. */\r
+#define mainCHECK_TIMER_PERIOD_MS ( 3000UL / portTICK_RATE_MS )\r
+\r
+/* The period at which the OLED timer will expire. Each time it expires, it's\r
+callback function updates the OLED text. */\r
+#define mainOLED_PERIOD_MS ( 75UL / portTICK_RATE_MS )\r
+\r
+/* The period at which the check timer will expire, in ms, if an error has been\r
+reported in one of the standard demo tasks. */\r
+#define mainERROR_CHECK_TIMER_PERIOD_MS ( 500UL / portTICK_RATE_MS )\r
+\r
+/* The LED will remain on until the button has not been pushed for a full\r
+5000ms. */\r
+#define mainLED_TIMER_PERIOD_MS ( 5000UL / portTICK_RATE_MS )\r
+\r
+/* A zero block time. */\r
+#define mainDONT_BLOCK ( 0UL )\r
+/*-----------------------------------------------------------*/\r
+\r
+/*\r
+ * Setup the NVIC, LED outputs, and button inputs.\r
+ */\r
+static void prvSetupHardware( void );\r
+\r
+/*\r
+ * The tasks as described in the comments at the top of this file.\r
+ */\r
+static void prvQueueReceiveTask( void *pvParameters );\r
+static void prvQueueSendTask( void *pvParameters );\r
+\r
+/*\r
+ * The LED timer callback function. This does nothing but switch the red LED\r
+ * off.\r
+ */\r
+static void prvLEDTimerCallback( xTimerHandle xTimer );\r
+\r
+/*\r
+ * The check timer callback function, as described at the top of this file.\r
+ */\r
+static void prvCheckTimerCallback( xTimerHandle xTimer );\r
+\r
+/*\r
+ * This is not a 'standard' partest function, so the prototype is not in\r
+ * partest.h, and is instead included here.\r
+ */\r
+void vParTestSetLEDFromISR( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue );\r
+\r
+/*\r
+ * Contains the implementation of the WEB server.\r
+ */\r
+extern void vuIP_Task( void *pvParameters );\r
+\r
+/*\r
+ * A very simply task that does nothing but scroll the OLED display. Ideally\r
+ * this would be done within a timer, but it accesses the I2C port which is\r
+ * time consuming.\r
+ */\r
+static void prvOLEDTask( void * pvParameters);\r
+\r
+/*-----------------------------------------------------------*/\r
+\r
+/* The queue used by both application specific demo tasks defined in this file. */\r
+static xQueueHandle xQueue = NULL;\r
+\r
+/* The LED software timer. This uses prvLEDTimerCallback() as it's callback\r
+function. */\r
+static xTimerHandle xLEDTimer = NULL;\r
+\r
+/* The check timer. This uses prvCheckTimerCallback() as it's callback\r
+function. */\r
+static xTimerHandle xCheckTimer = NULL;\r
+\r
+/* The status message that is displayed at the bottom of the "task stats" web\r
+page, which is served by the uIP task. This will report any errors picked up\r
+by the check timer callback. */\r
+static const char *pcStatusMessage = NULL;\r
+\r
+/*-----------------------------------------------------------*/\r
+\r
+int main(void)\r
+{\r
+ /* Configure the NVIC, LED outputs and button inputs. */\r
+ prvSetupHardware();\r
+\r
+ /* Create the queue. */\r
+ xQueue = xQueueCreate( mainQUEUE_LENGTH, sizeof( unsigned long ) );\r
+\r
+ if( xQueue != NULL )\r
+ {\r
+ /* Start the three application specific demo tasks, as described in the\r
+ comments at the top of this file. */\r
+ xTaskCreate( prvQueueReceiveTask, ( signed char * ) "Rx", configMINIMAL_STACK_SIZE, NULL, mainQUEUE_RECEIVE_TASK_PRIORITY, NULL );\r
+ xTaskCreate( prvQueueSendTask, ( signed char * ) "TX", configMINIMAL_STACK_SIZE, NULL, mainQUEUE_SEND_TASK_PRIORITY, NULL );\r
+ xTaskCreate( prvOLEDTask, ( signed char * ) "OLED", configMINIMAL_STACK_SIZE, NULL, mainOLED_TASK_PRIORITY, NULL );\r
+\r
+ /* Create the software timer that is responsible for turning off the LED\r
+ if the button is not pushed within 5000ms, as described at the top of\r
+ this file. */\r
+ xLEDTimer = xTimerCreate( ( const signed char * ) "LEDTimer", /* A text name, purely to help debugging. */\r
+ ( mainLED_TIMER_PERIOD_MS ), /* The timer period, in this case 5000ms (5s). */\r
+ pdFALSE, /* This is a one shot timer, so xAutoReload is set to pdFALSE. */\r
+ ( void * ) 0, /* The ID is not used, so can be set to anything. */\r
+ prvLEDTimerCallback /* The callback function that switches the LED off. */\r
+ );\r
+\r
+ /* Create the software timer that performs the 'check' functionality,\r
+ as described at the top of this file. */\r
+ xCheckTimer = xTimerCreate( ( const signed char * ) "CheckTimer",/* A text name, purely to help debugging. */\r
+ ( mainCHECK_TIMER_PERIOD_MS ), /* The timer period, in this case 3000ms (3s). */\r
+ pdTRUE, /* This is an auto-reload timer, so xAutoReload is set to pdTRUE. */\r
+ ( void * ) 0, /* The ID is not used, so can be set to anything. */\r
+ prvCheckTimerCallback /* The callback function that inspects the status of all the other tasks. */\r
+ );\r
+\r
+ /* Create a lot of 'standard demo' tasks. */\r
+ vStartBlockingQueueTasks( mainBLOCK_Q_PRIORITY );\r
+ vCreateBlockTimeTasks();\r
+ vStartSemaphoreTasks( mainSEM_TEST_PRIORITY );\r
+ vStartGenericQueueTasks( mainGEN_QUEUE_TASK_PRIORITY );\r
+ vStartLEDFlashTasks( mainFLASH_TASK_PRIORITY );\r
+ vStartQueuePeekTasks();\r
+ vStartRecursiveMutexTasks();\r
+ vStartTimerDemoTask( mainTIMER_TEST_PERIOD );\r
+\r
+ /* Create the web server task. */\r
+ xTaskCreate( vuIP_Task, ( signed char * ) "uIP", mainuIP_STACK_SIZE, NULL, mainuIP_TASK_PRIORITY, NULL );\r
+ \r
+ /* The suicide tasks must be created last, as they need to know how many\r
+ tasks were running prior to their creation in order to ascertain whether\r
+ or not the correct/expected number of tasks are running at any given\r
+ time. */\r
+ vCreateSuicidalTasks( mainCREATOR_TASK_PRIORITY );\r
+\r
+ /* Start the tasks and timer running. */\r
+ vTaskStartScheduler();\r
+ }\r
+\r
+ /* If all is well, the scheduler will now be running, and the following line\r
+ will never be reached. If the following line does execute, then there was\r
+ insufficient FreeRTOS heap memory available for the idle and/or timer tasks\r
+ to be created. See the memory management section on the FreeRTOS web site\r
+ for more details. */\r
+ for( ;; );\r
+}\r
+/*-----------------------------------------------------------*/\r
+\r
+static void prvCheckTimerCallback( xTimerHandle xTimer )\r
+{\r
+ /* Check the standard demo tasks are running without error. Latch the\r
+ latest reported error in the pcStatusMessage character pointer. */\r
+ if( xAreGenericQueueTasksStillRunning() != pdTRUE )\r
+ {\r
+ pcStatusMessage = "Error: GenQueue";\r
+ }\r
+\r
+ if( xAreQueuePeekTasksStillRunning() != pdTRUE )\r
+ {\r
+ pcStatusMessage = "Error: QueuePeek\r\n";\r
+ }\r
+\r
+ if( xAreBlockingQueuesStillRunning() != pdTRUE )\r
+ {\r
+ pcStatusMessage = "Error: BlockQueue\r\n";\r
+ }\r
+\r
+ if( xAreBlockTimeTestTasksStillRunning() != pdTRUE )\r
+ {\r
+ pcStatusMessage = "Error: BlockTime\r\n";\r
+ }\r
+\r
+ if( xAreSemaphoreTasksStillRunning() != pdTRUE )\r
+ {\r
+ pcStatusMessage = "Error: SemTest\r\n";\r
+ }\r
+\r
+ if( xIsCreateTaskStillRunning() != pdTRUE )\r
+ {\r
+ pcStatusMessage = "Error: Death\r\n";\r
+ }\r
+\r
+ if( xAreRecursiveMutexTasksStillRunning() != pdTRUE )\r
+ {\r
+ pcStatusMessage = "Error: RecMutex\r\n";\r
+ }\r
+\r
+ if( xAreTimerDemoTasksStillRunning( ( mainCHECK_TIMER_PERIOD_MS ) ) != pdTRUE )\r
+ {\r
+ pcStatusMessage = "Error: TimerDemo";\r
+ }\r
+\r
+ /* Toggle the check LED to give an indication of the system status. If\r
+ the LED toggles every mainCHECK_TIMER_PERIOD_MS milliseconds then\r
+ everything is ok. A faster toggle indicates an error. */\r
+ vParTestToggleLED( mainCHECK_LED );\r
+\r
+ /* Have any errors been latch in pcStatusMessage? If so, shorten the\r
+ period of the check timer to mainERROR_CHECK_TIMER_PERIOD_MS milliseconds.\r
+ This will result in an increase in the rate at which mainCHECK_LED\r
+ toggles. */\r
+ if( pcStatusMessage != NULL )\r
+ {\r
+ /* This call to xTimerChangePeriod() uses a zero block time. Functions\r
+ called from inside of a timer callback function must *never* attempt\r
+ to block. */\r
+ xTimerChangePeriod( xCheckTimer, ( mainERROR_CHECK_TIMER_PERIOD_MS ), mainDONT_BLOCK );\r
+ }\r
+}\r
+/*-----------------------------------------------------------*/\r
+\r
+static void prvLEDTimerCallback( xTimerHandle xTimer )\r
+{\r
+ /* The timer has expired - so no button pushes have occurred in the last\r
+ five seconds - turn the LED off. */\r
+ vParTestSetLED( mainTIMER_CONTROLLED_LED, pdFALSE );\r
+}\r
+/*-----------------------------------------------------------*/\r
+\r
+/* The ISR executed when the user button is pushed. */\r
+void GPIO8_IRQHandler( void )\r
+{\r
+portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE;\r
+\r
+ /* The button was pushed, so ensure the LED is on before resetting the\r
+ LED timer. The LED timer will turn the LED off if the button is not\r
+ pushed within 5000ms. */\r
+ vParTestSetLEDFromISR( mainTIMER_CONTROLLED_LED, pdTRUE );\r
+\r
+ /* This interrupt safe FreeRTOS function can be called from this interrupt\r
+ because the interrupt priority is below the\r
+ configMAX_SYSCALL_INTERRUPT_PRIORITY setting in FreeRTOSConfig.h. */\r
+ xTimerResetFromISR( xLEDTimer, &xHigherPriorityTaskWoken );\r
+\r
+ /* Clear the interrupt before leaving. */\r
+ MSS_GPIO_clear_irq( MSS_GPIO_8 );\r
+\r
+ /* If calling xTimerResetFromISR() caused a task (in this case the timer\r
+ service/daemon task) to unblock, and the unblocked task has a priority\r
+ higher than or equal to the task that was interrupted, then\r
+ xHigherPriorityTaskWoken will now be set to pdTRUE, and calling\r
+ portEND_SWITCHING_ISR() will ensure the unblocked task runs next. */\r
+ portEND_SWITCHING_ISR( xHigherPriorityTaskWoken );\r
+}\r
+/*-----------------------------------------------------------*/\r
+\r
+static void prvQueueSendTask( void *pvParameters )\r
+{\r
+portTickType xNextWakeTime;\r
+const unsigned long ulValueToSend = 100UL;\r
+\r
+ /* The timer command queue will have been filled when the timer test tasks\r
+ were created in main() (this is part of the test they perform). Therefore,\r
+ while the check and OLED timers can be created in main(), they cannot be\r
+ started from main(). Once the scheduler has started, the timer service\r
+ task will drain the command queue, and now the check and OLED timers can be\r
+ started successfully. */\r
+ xTimerStart( xCheckTimer, portMAX_DELAY );\r
+\r
+ /* Initialise xNextWakeTime - this only needs to be done once. */\r
+ xNextWakeTime = xTaskGetTickCount();\r
+\r
+ for( ;; )\r
+ {\r
+ /* Place this task in the blocked state until it is time to run again.\r
+ The block time is specified in ticks, the constant used converts ticks\r
+ to ms. While in the Blocked state this task will not consume any CPU\r
+ time. */\r
+ vTaskDelayUntil( &xNextWakeTime, mainQUEUE_SEND_FREQUENCY_MS );\r
+\r
+ /* Send to the queue - causing the queue receive task to unblock and\r
+ toggle an LED. 0 is used as the block time so the sending operation\r
+ will not block - it shouldn't need to block as the queue should always\r
+ be empty at this point in the code. */\r
+ xQueueSend( xQueue, &ulValueToSend, mainDONT_BLOCK );\r
+ }\r
+}\r
+/*-----------------------------------------------------------*/\r
+\r
+static void prvQueueReceiveTask( void *pvParameters )\r
+{\r
+unsigned long ulReceivedValue;\r
+\r
+ for( ;; )\r
+ {\r
+ /* Wait until something arrives in the queue - this task will block\r
+ indefinitely provided INCLUDE_vTaskSuspend is set to 1 in\r
+ FreeRTOSConfig.h. */\r
+ xQueueReceive( xQueue, &ulReceivedValue, portMAX_DELAY );\r
+\r
+ /* To get here something must have been received from the queue, but\r
+ is it the expected value? If it is, toggle the LED. */\r
+ if( ulReceivedValue == 100UL )\r
+ {\r
+ vParTestToggleLED( mainTASK_CONTROLLED_LED );\r
+ }\r
+ }\r
+}\r
+/*-----------------------------------------------------------*/\r
+\r
+static void prvOLEDTask( void * pvParameters)\r
+{\r
+static struct oled_data xOLEDData;\r
+static unsigned char ucOffset1 = 0, ucOffset2 = 5;\r
+static portTickType xLastScrollTime = 0UL;\r
+\r
+ /* Initialise the display. */\r
+ OLED_init();\r
+\r
+ /* Initialise the parts of the oled_data structure that do not change. */\r
+ xOLEDData.line1 = FIRST_LINE;\r
+ xOLEDData.string1 = " www.FreeRTOS.org";\r
+ xOLEDData.line2 = SECOND_LINE;\r
+ xOLEDData.string2 = " www.FreeRTOS.org";\r
+ xOLEDData.contrast_val = OLED_CONTRAST_VAL;\r
+ xOLEDData.on_off = OLED_HORIZ_SCROLL_OFF;\r
+ xOLEDData.column_scrool_per_step = OLED_HORIZ_SCROLL_STEP;\r
+ xOLEDData.start_page = OLED_START_PAGE;\r
+ xOLEDData.time_intrval_btw_scroll_step = OLED_HORIZ_SCROLL_TINVL;\r
+ xOLEDData.end_page = OLED_END_PAGE;\r
+\r
+\r
+ /* Initialise the last scroll time. This only needs to be done once,\r
+ because from this point on it will get automatically updated in the\r
+ xTaskDelayUntil() API function. */\r
+ xLastScrollTime = xTaskGetTickCount();\r
+\r
+ for( ;; )\r
+ {\r
+ /* Wait until it is time to update the OLED again. */\r
+ vTaskDelayUntil( &xLastScrollTime, mainOLED_PERIOD_MS );\r
+ \r
+ xOLEDData.char_offset1 = ucOffset1++;\r
+ xOLEDData.char_offset2 = ucOffset2++;\r
+ \r
+ OLED_write_data( &xOLEDData, BOTH_LINES );\r
+ }\r
+}\r
+/*-----------------------------------------------------------*/\r
+\r
+static void prvSetupHardware( void )\r
+{\r
+ SystemCoreClockUpdate();\r
+ \r
+ /* Disable the Watch Dog Timer */\r
+ MSS_WD_disable( );\r
+\r
+ /* Configure the GPIO for the LEDs. */\r
+ vParTestInitialise();\r
+ \r
+ /* ACE Initialization */\r
+ ACE_init();\r
+\r
+ /* Setup the GPIO and the NVIC for the switch used in this simple demo. */\r
+ NVIC_SetPriority( GPIO8_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY );\r
+ NVIC_EnableIRQ( GPIO8_IRQn );\r
+ MSS_GPIO_config( MSS_GPIO_8, MSS_GPIO_INPUT_MODE | MSS_GPIO_IRQ_EDGE_NEGATIVE );\r
+ MSS_GPIO_enable_irq( MSS_GPIO_8 );\r
+}\r
+/*-----------------------------------------------------------*/\r
+\r
+void vApplicationMallocFailedHook( void )\r
+{\r
+ /* Called if a call to pvPortMalloc() fails because there is insufficient\r
+ free memory available in the FreeRTOS heap. pvPortMalloc() is called\r
+ internally by FreeRTOS API functions that create tasks, queues, software\r
+ timers, and semaphores. The size of the FreeRTOS heap is set by the\r
+ configTOTAL_HEAP_SIZE configuration constant in FreeRTOSConfig.h. */\r
+ for( ;; );\r
+}\r
+/*-----------------------------------------------------------*/\r
+\r
+void vApplicationStackOverflowHook( xTaskHandle *pxTask, signed char *pcTaskName )\r
+{\r
+ ( void ) pcTaskName;\r
+ ( void ) pxTask;\r
+\r
+ /* Run time stack overflow checking is performed if\r
+ configconfigCHECK_FOR_STACK_OVERFLOW is defined to 1 or 2. This hook\r
+ function is called if a stack overflow is detected. */\r
+ taskDISABLE_INTERRUPTS();\r
+ for( ;; );\r
+}\r
+/*-----------------------------------------------------------*/\r
+\r
+void vApplicationIdleHook( void )\r
+{\r
+volatile size_t xFreeStackSpace;\r
+\r
+ /* This function is called on each cycle of the idle task. In this case it\r
+ does nothing useful, other than report the amount of FreeRTOS heap that\r
+ remains unallocated. */\r
+ xFreeStackSpace = xPortGetFreeHeapSize();\r
+\r
+ if( xFreeStackSpace > 100 )\r
+ {\r
+ /* By now, the kernel has allocated everything it is going to, so\r
+ if there is a lot of heap remaining unallocated then\r
+ the value of configTOTAL_HEAP_SIZE in FreeRTOSConfig.h can be\r
+ reduced accordingly. */\r
+ }\r
+}\r
+/*-----------------------------------------------------------*/\r
+\r
+char *pcGetTaskStatusMessage( void )\r
+{\r
+ /* Not bothered about a critical section here although technically because\r
+ of the task priorities the pointer could change it will be atomic if not\r
+ near atomic and its not critical. */\r
+ if( pcStatusMessage == NULL )\r
+ {\r
+ return "All tasks running without error";\r
+ }\r
+ else\r
+ {\r
+ return ( char * ) pcStatusMessage;\r
+ }\r
+}\r
+/*-----------------------------------------------------------*/\r
+\r
+void vMainConfigureTimerForRunTimeStats( void )\r
+{\r
+const unsigned long ulMax32BitValue = 0xffffffffUL;\r
+\r
+ MSS_TIM64_init( MSS_TIMER_PERIODIC_MODE );\r
+ MSS_TIM64_load_immediate( ulMax32BitValue, ulMax32BitValue );\r
+ MSS_TIM64_start();\r
+}\r
+/*-----------------------------------------------------------*/\r
+\r
+unsigned long ulGetRunTimeCounterValue( void )\r
+{\r
+unsigned long long ullCurrentValue;\r
+const unsigned long long ulMax64BitValue = 0xffffffffffffffffULL;\r
+unsigned long *pulHighWord, *pulLowWord;\r
+\r
+ pulHighWord = ( unsigned long * ) &ullCurrentValue;\r
+ pulLowWord = pulHighWord++;\r
+ \r
+ MSS_TIM64_get_current_value( ( uint32_t * ) pulHighWord, ( uint32_t * ) pulLowWord );\r
+ \r
+ /* Convert the down count into an upcount. */\r
+ ullCurrentValue = ulMax64BitValue - ullCurrentValue;\r
+ \r
+ /* Scale to a 32bit number of suitable frequency. */\r
+ ullCurrentValue >>= 13;\r
+\r
+ /* Just return 32 bits. */\r
+ return ( unsigned long ) ullCurrentValue;\r
+}\r
+\r
projects / freertos / commitdiff