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@ -63,47 +63,70 @@
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*
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*
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* main-full.c (this file) defines a comprehensive demo that creates many
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* main-full.c (this file) defines a comprehensive demo that creates many
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* tasks, queues, semaphores and timers. It also demonstrates how Cortex-M3
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* tasks, queues, semaphores and timers. It also demonstrates how Cortex-M3
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* interrupts can interact with FreeRTOS tasks/timers.
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* interrupts can interact with FreeRTOS tasks/timers, a simple web server, and
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* run time statistics gathering functionality. ***IF YOU ARE LOOKING FOR A
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* SIMPLER STARTING POINT THEN USE THE "BLINKY" BUILD CONFIGURATION FIRST.***
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*
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*
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* This project runs on the SK-FM3-100PMC evaluation board, which is populated
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* If the Ethernet functionality is excluded, then this demo will run 'stand
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* with an MB9BF5006N Cortex-M3 based microcontroller.
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* alone' (without the rest of the tower system) on the TWR-K60N512 tower
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* module. If the Ethernet functionality is included, then the full Freescale
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* K60 tower kit, including both the TWR-K60N512 and TWR-SER modules, is
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* required (as the Ethernet connector is on the TWR-SER). The TWR-K60N512 is
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* populated with a K60N512 Cortex-M4 microcontroller.
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*
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*
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* The main() Function:
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* The main() Function:
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* main() creates three demo specific software timers, one demo specific queue,
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* main() creates four demo specific software timers, and one demo specific
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* and two demo specific tasks. It then creates a whole host of 'standard
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* task (the web server task). It also creates a whole host of 'standard
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* demo' tasks/queues/semaphores, before starting the scheduler. The demo
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* demo' tasks/queues/semaphores/timers, before starting the scheduler. The
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* specific tasks and timers are described in the comments here. The standard
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* demo specific tasks and timers are described in the comments here. The
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* demo tasks are described on the FreeRTOS.org web site.
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* standard demo tasks are described on the FreeRTOS.org web site.
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*
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*
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* The standard demo tasks provide no specific functionality. They are
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* The standard demo tasks provide no specific functionality. They are
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* included to both test the FreeRTOS port, and provide examples of how the
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* included to both test the FreeRTOS port, and provide examples of how the
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* various FreeRTOS API functions can be used.
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* various FreeRTOS API functions can be used.
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*
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*
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* This demo creates 43 tasks in total. If you want a simpler demo, use the
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* This demo creates 37 persistent tasks, then dynamically creates and destroys
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* Blinky build configuration.
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* another two tasks as the demo executes.
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*
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*
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* The Demo Specific LED Software Timer and the Button Interrupt:
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*
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* The Demo Specific "LED" Timers and Callback Function:
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* Two very simple LED timers are created. All they do is toggle and LED timer
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* callback function is executed. The two timers share a callback function, so
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* the callback function parameter is used to determine which timer actually
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* expired, and therefore, which LED to toggle. Both timers use a different
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* frequency, one toggles the blue LED and the other the green LED.
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*
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* The LED/Button Software Timer and the Button Interrupt:
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* The user button SW2 is configured to generate an interrupt each time it is
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* The user button SW2 is configured to generate an interrupt each time it is
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* pressed. The interrupt service routine switches an LED on, and resets the
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* pressed. The interrupt service routine switches the orange/yellow LED on,
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* LED software timer. The LED timer has a 5000 millisecond (5 second) period,
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* and resets the LED software timer. The LED timer has a 5000 millisecond (5
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* and uses a callback function that is defined to just turn the LED off again.
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* second) period, and uses a callback function that is defined to just turn the
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* Therefore, pressing the user button will turn the LED on, and the LED will
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* LED off again. Therefore, pressing the user button will turn the LED on, and
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* remain on until a full five seconds pass without the button being pressed.
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* the LED will remain on until a full five seconds pass without the button
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* See the documentation page for this demo on the FreeRTOS.org web site to see
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* being pressed.
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* which LED is used.
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*
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* The Demo Specific "Check" Timer and Callback Function:
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* The check timer period is initially set to three seconds. The check timer
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* callback function checks that all the standard demo tasks are not only still
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* executing, but are executing without reporting any errors. If the check
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* timer discovers that a task has either stalled, or reported an error, then it
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* changes its own period from the initial three seconds, to just 200ms. The
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* check timer callback function also toggles the orange/red LED each time it is
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* called. This provides a visual indication of the system status: If the LED
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* toggles every three seconds, then no issues have been discovered. If the LED
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* toggles every 200ms, then an issue has been discovered with at least one
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* task. The last reported issue is latched into the pcStatusMessage variable,
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* and displayed at the bottom of the "task stats" web page served by the
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* embedded web server task.
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*
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*
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* The Demo Specific "Check" Callback Function:
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* The web server task:
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* This is called each time the 'check' timer expires. The check timer
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* The web server task implements a simple embedded web server that includes
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* callback function inspects all the standard demo tasks to see if they are
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* CGI scripting. Pages are provided that allow task statistics, network
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* all executing as expected. The check timer is initially configured to
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* statistics and run time statistics to be viewed. In addition, an IO page is
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* expire every three seconds, but will shorted this to every 500ms if an error
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* served that allows the orange/yellow LED to be turned on and off. Finally,
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* is ever discovered. The check timer callback toggles the LED defined by
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* a page is included that serves a large jpg file. See the documentation page
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* the mainCHECK_LED definition each time it executes. Therefore, if LED
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* for this demo on the http://www.FreeRTOS.org web site for web server
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* mainCHECK_LED is toggling every three seconds, then no error have been found.
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* configuration and usage instructions.
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* If LED mainCHECK_LED is toggling every 500ms, then at least one errors has
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* been found. The variable pcStatusMessage is set to a string that indicates
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* which task reported an error. See the documentation page for this demo on
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* the FreeRTOS.org web site to see which LED in the 7 segment display is used.
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*
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*
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* The Demo Specific Idle Hook Function:
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* The Demo Specific Idle Hook Function:
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* The idle hook function demonstrates how to query the amount of FreeRTOS heap
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* The idle hook function demonstrates how to query the amount of FreeRTOS heap
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@ -112,6 +135,7 @@
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* The Demo Specific Tick Hook Function:
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* The Demo Specific Tick Hook Function:
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* The tick hook function is used to test the interrupt safe software timer
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* The tick hook function is used to test the interrupt safe software timer
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* functionality.
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* functionality.
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*
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*/
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*/
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/* Kernel includes. */
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/* Kernel includes. */
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@ -138,15 +162,6 @@
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#include "countsem.h"
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#include "countsem.h"
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#include "dynamic.h"
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#include "dynamic.h"
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/* The rate at which data is sent to the queue, specified in milliseconds, and
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converted to ticks using the portTICK_RATE_MS constant. */
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#define mainQUEUE_SEND_FREQUENCY_MS ( 200 / portTICK_RATE_MS )
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/* The number of items the queue can hold. This is 1 as the receive task
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will remove items as they are added, meaning the send task should always find
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the queue empty. */
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#define mainQUEUE_LENGTH ( 1 )
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/* The LED toggled by the check timer callback function. */
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/* The LED toggled by the check timer callback function. */
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#define mainCHECK_LED 3UL
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#define mainCHECK_LED 3UL
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@ -161,24 +176,17 @@ the queue empty. */
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#define mainTIMER_TEST_PERIOD ( 50 )
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#define mainTIMER_TEST_PERIOD ( 50 )
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/* Priorities used by the various different standard demo tasks. */
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/* Priorities used by the various different standard demo tasks. */
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#define mainCHECK_TASK_PRIORITY ( configMAX_PRIORITIES - 1 )
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#define mainQUEUE_POLL_PRIORITY ( tskIDLE_PRIORITY + 1 )
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#define mainQUEUE_POLL_PRIORITY ( tskIDLE_PRIORITY + 1 )
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#define mainSEM_TEST_PRIORITY ( tskIDLE_PRIORITY + 1 )
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#define mainSEM_TEST_PRIORITY ( tskIDLE_PRIORITY + 1 )
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#define mainBLOCK_Q_PRIORITY ( tskIDLE_PRIORITY + 2 )
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#define mainBLOCK_Q_PRIORITY ( tskIDLE_PRIORITY + 2 )
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#define mainCREATOR_TASK_PRIORITY ( tskIDLE_PRIORITY + 3 )
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#define mainCREATOR_TASK_PRIORITY ( tskIDLE_PRIORITY + 3 )
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#define mainINTEGER_TASK_PRIORITY ( tskIDLE_PRIORITY )
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#define mainGEN_QUEUE_TASK_PRIORITY ( tskIDLE_PRIORITY )
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#define mainGEN_QUEUE_TASK_PRIORITY ( tskIDLE_PRIORITY )
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#define mainCOM_TEST_PRIORITY ( tskIDLE_PRIORITY + 2 )
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#define mainuIP_TASK_PRIORITY ( tskIDLE_PRIORITY + 2 )
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#define mainuIP_TASK_PRIORITY ( tskIDLE_PRIORITY + 2 )
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/* The WEB server uses string handling functions, which in turn use a bit more
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/* The WEB server uses string handling functions, which in turn use a bit more
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stack than most of the other tasks. */
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stack than most of the other tasks. */
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#define mainuIP_STACK_SIZE ( configMINIMAL_STACK_SIZE * 3 )
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#define mainuIP_STACK_SIZE ( configMINIMAL_STACK_SIZE * 3 )
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/* Priorities defined in this main-full.c file. */
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#define mainQUEUE_RECEIVE_TASK_PRIORITY ( tskIDLE_PRIORITY + 2 )
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#define mainQUEUE_SEND_TASK_PRIORITY ( tskIDLE_PRIORITY + 1 )
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/* The period at which the check timer will expire, in ms, provided no errors
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/* The period at which the check timer will expire, in ms, provided no errors
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have been reported by any of the standard demo tasks. ms are converted to the
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have been reported by any of the standard demo tasks. ms are converted to the
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equivalent in ticks using the portTICK_RATE_MS constant. */
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equivalent in ticks using the portTICK_RATE_MS constant. */
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@ -187,23 +195,23 @@ equivalent in ticks using the portTICK_RATE_MS constant. */
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/* The period at which the check timer will expire, in ms, if an error has been
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/* The period at which the check timer will expire, in ms, if an error has been
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reported in one of the standard demo tasks. ms are converted to the equivalent
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reported in one of the standard demo tasks. ms are converted to the equivalent
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in ticks using the portTICK_RATE_MS constant. */
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in ticks using the portTICK_RATE_MS constant. */
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#define mainERROR_CHECK_TIMER_PERIOD_MS ( 500UL / portTICK_RATE_MS )
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#define mainERROR_CHECK_TIMER_PERIOD_MS ( 200UL / portTICK_RATE_MS )
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/* The LED will remain on until the button has not been pushed for a full
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/* The LED that is turned on by pressing SW2 remains on until the button has not
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5000ms. */
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been pushed for a full 5000ms. */
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#define mainBUTTON_LED_TIMER_PERIOD_MS ( 5000UL / portTICK_RATE_MS )
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#define mainBUTTON_LED_TIMER_PERIOD_MS ( 5000UL / portTICK_RATE_MS )
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/* The period at which the two simple LED flash timers will execute their
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/* The period at which the two simple LED flash timers will execute their
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callback functions. */
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callback functions. */
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#define mainLED1_TIMER_PERIOD_MS ( 200 / portTICK_RATE_MS )
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#define mainLED1_TIMER_PERIOD_MS ( 200UL / portTICK_RATE_MS )
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#define mainLED2_TIMER_PERIOD_MS ( 600 / portTICK_RATE_MS )
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#define mainLED2_TIMER_PERIOD_MS ( 600UL / portTICK_RATE_MS )
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/* A block time of zero simply means "don't block". */
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/* A block time of zero simply means "don't block". */
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#define mainDONT_BLOCK ( 0UL )
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#define mainDONT_BLOCK ( 0UL )
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/* The vector used by the GPIO port E. Button SW2 is configured to generate
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/* The vector used by the GPIO port E. Button SW2 is configured to generate
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an interrput on this port. */
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an interrupt on this port. */
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#define mainGPIO_E_VECTOR ( 107 - 16 )
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#define mainGPIO_E_VECTOR ( 91 )
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/*-----------------------------------------------------------*/
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/*-----------------------------------------------------------*/
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@ -219,14 +227,15 @@ static void prvSetupHardware( void );
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static void prvCreateDemoSpecificTimers( void );
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static void prvCreateDemoSpecificTimers( void );
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/*
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/*
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* The LED timer callback function. This does nothing but switch an LED off.
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* The LED/button timer callback function. This does nothing but switch an LED
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* off.
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*/
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*/
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static void prvButtonLEDTimerCallback( xTimerHandle xTimer );
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static void prvButtonLEDTimerCallback( xTimerHandle xTimer );
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/*
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/*
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* The callback function used by both simple LED flash timers. Both timers use
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* The callback function used by both simple LED flash timers. Both timers use
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* the same callback, so the function parameter is used to determine which LED
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* the same callback, so the function parameter is used to determine which LED
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* should be flashed (effectively to determine which timer has expired.
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* should be flashed (effectively to determine which timer has expired).
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*/
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*/
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static void prvLEDTimerCallback( xTimerHandle xTimer );
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static void prvLEDTimerCallback( xTimerHandle xTimer );
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@ -236,30 +245,22 @@ static void prvLEDTimerCallback( xTimerHandle xTimer );
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static void prvCheckTimerCallback( xTimerHandle xTimer );
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static void prvCheckTimerCallback( xTimerHandle xTimer );
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/*
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/*
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* This is not a 'standard' partest function, so the prototype is not in
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* Contains the implementation of the web server.
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* partest.h, and is instead included here.
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*/
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void vParTestSetLEDFromISR( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue );
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/*
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* Contains the implementation of the WEB server.
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*/
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*/
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extern void vuIP_Task( void *pvParameters );
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extern void vuIP_Task( void *pvParameters );
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/*-----------------------------------------------------------*/
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/*-----------------------------------------------------------*/
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|
|
|
|
|
/* The queue used by both application specific demo tasks defined in this file. */
|
|
|
|
/* The LED/Button software timer. This uses prvButtonLEDTimerCallback() as it's
|
|
|
|
static xQueueHandle xQueue = NULL;
|
|
|
|
callback function. */
|
|
|
|
|
|
|
|
static xTimerHandle xLEDButtonTimer = NULL;
|
|
|
|
/* The LED software timer. This uses prvButtonLEDTimerCallback() as it's callback
|
|
|
|
|
|
|
|
function. */
|
|
|
|
|
|
|
|
static xTimerHandle xLEDTimer = NULL;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* The check timer. This uses prvCheckTimerCallback() as its callback
|
|
|
|
/* The check timer. This uses prvCheckTimerCallback() as its callback
|
|
|
|
function. */
|
|
|
|
function. */
|
|
|
|
static xTimerHandle xCheckTimer = NULL;
|
|
|
|
static xTimerHandle xCheckTimer = NULL;
|
|
|
|
|
|
|
|
|
|
|
|
/* LED timers - these simply flash LEDs, each using a different frequency. */
|
|
|
|
/* LED timers - these simply flash LEDs, each using a different frequency. Both
|
|
|
|
|
|
|
|
use the same prvLEDTimerCallback() callback function. */
|
|
|
|
static xTimerHandle xLED1Timer = NULL, xLED2Timer = NULL;
|
|
|
|
static xTimerHandle xLED1Timer = NULL, xLED2Timer = NULL;
|
|
|
|
|
|
|
|
|
|
|
|
/* If an error is detected in a standard demo task, then pcStatusMessage will
|
|
|
|
/* If an error is detected in a standard demo task, then pcStatusMessage will
|
|
|
@ -267,8 +268,9 @@ be set to point to a string that identifies the offending task. This is just
|
|
|
|
to make debugging easier. */
|
|
|
|
to make debugging easier. */
|
|
|
|
static const char *pcStatusMessage = NULL;
|
|
|
|
static const char *pcStatusMessage = NULL;
|
|
|
|
|
|
|
|
|
|
|
|
/* Used in the run time stats calculation. */
|
|
|
|
/* Used in the run time stats calculations. */
|
|
|
|
static unsigned long ulClocksPer10thOfAMilliSecond = 0UL;
|
|
|
|
static unsigned long ulClocksPer10thOfAMilliSecond = 0UL;
|
|
|
|
|
|
|
|
|
|
|
|
/*-----------------------------------------------------------*/
|
|
|
|
/*-----------------------------------------------------------*/
|
|
|
|
|
|
|
|
|
|
|
|
void main( void )
|
|
|
|
void main( void )
|
|
|
@ -276,41 +278,35 @@ void main( void )
|
|
|
|
/* Configure the NVIC, LED outputs and button inputs. */
|
|
|
|
/* Configure the NVIC, LED outputs and button inputs. */
|
|
|
|
prvSetupHardware();
|
|
|
|
prvSetupHardware();
|
|
|
|
|
|
|
|
|
|
|
|
/* Create the queue. */
|
|
|
|
/* Create the timers that are specific to this demo - other timers are
|
|
|
|
xQueue = xQueueCreate( mainQUEUE_LENGTH, sizeof( unsigned long ) );
|
|
|
|
created as part of the standard demo within vStartTimerDemoTask. */
|
|
|
|
|
|
|
|
prvCreateDemoSpecificTimers();
|
|
|
|
if( xQueue != NULL )
|
|
|
|
|
|
|
|
{
|
|
|
|
/* Create a lot of 'standard demo' tasks. Nearly 40 tasks are created in
|
|
|
|
/* Create the timers that are specific to this demo - other timers are
|
|
|
|
this demo. For a much simpler demo, select the 'blinky' build
|
|
|
|
created as part of the standard demo within vStartTimerDemoTask. */
|
|
|
|
configuration. */
|
|
|
|
prvCreateDemoSpecificTimers();
|
|
|
|
vStartBlockingQueueTasks( mainBLOCK_Q_PRIORITY );
|
|
|
|
|
|
|
|
vCreateBlockTimeTasks();
|
|
|
|
/* Create a lot of 'standard demo' tasks. Over 40 tasks are created in
|
|
|
|
vStartSemaphoreTasks( mainSEM_TEST_PRIORITY );
|
|
|
|
this demo. For a much simpler demo, select the 'blinky' build
|
|
|
|
vStartGenericQueueTasks( mainGEN_QUEUE_TASK_PRIORITY );
|
|
|
|
configuration. */
|
|
|
|
vStartQueuePeekTasks();
|
|
|
|
vStartBlockingQueueTasks( mainBLOCK_Q_PRIORITY );
|
|
|
|
vStartRecursiveMutexTasks();
|
|
|
|
vCreateBlockTimeTasks();
|
|
|
|
vStartTimerDemoTask( mainTIMER_TEST_PERIOD );
|
|
|
|
vStartSemaphoreTasks( mainSEM_TEST_PRIORITY );
|
|
|
|
vStartPolledQueueTasks( mainQUEUE_POLL_PRIORITY );
|
|
|
|
vStartGenericQueueTasks( mainGEN_QUEUE_TASK_PRIORITY );
|
|
|
|
vStartCountingSemaphoreTasks();
|
|
|
|
vStartQueuePeekTasks();
|
|
|
|
vStartDynamicPriorityTasks();
|
|
|
|
vStartRecursiveMutexTasks();
|
|
|
|
|
|
|
|
vStartTimerDemoTask( mainTIMER_TEST_PERIOD );
|
|
|
|
/* The web server task. */
|
|
|
|
vStartPolledQueueTasks( mainQUEUE_POLL_PRIORITY );
|
|
|
|
xTaskCreate( vuIP_Task, "uIP", mainuIP_STACK_SIZE, NULL, mainuIP_TASK_PRIORITY, NULL );
|
|
|
|
vStartCountingSemaphoreTasks();
|
|
|
|
|
|
|
|
vStartDynamicPriorityTasks();
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* The web server task. */
|
|
|
|
|
|
|
|
xTaskCreate( vuIP_Task, "uIP", mainuIP_STACK_SIZE, NULL, mainuIP_TASK_PRIORITY, NULL );
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* The suicide tasks must be created last, as they need to know how many
|
|
|
|
/* The suicide tasks must be created last, as they need to know how many
|
|
|
|
tasks were running prior to their creation in order to ascertain whether
|
|
|
|
tasks were running prior to their creation in order to ascertain whether
|
|
|
|
or not the correct/expected number of tasks are running at any given
|
|
|
|
or not the correct/expected number of tasks are running at any given
|
|
|
|
time. */
|
|
|
|
time. */
|
|
|
|
vCreateSuicidalTasks( mainCREATOR_TASK_PRIORITY );
|
|
|
|
vCreateSuicidalTasks( mainCREATOR_TASK_PRIORITY );
|
|
|
|
|
|
|
|
|
|
|
|
/* Start the tasks and timer running. */
|
|
|
|
/* Start the tasks and timers running. */
|
|
|
|
vTaskStartScheduler();
|
|
|
|
vTaskStartScheduler();
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* If all is well, the scheduler will now be running, and the following line
|
|
|
|
/* If all is well, the scheduler will now be running, and the following line
|
|
|
|
will never be reached. If the following line does execute, then there was
|
|
|
|
will never be reached. If the following line does execute, then there was
|
|
|
@ -326,7 +322,9 @@ static void prvCheckTimerCallback( xTimerHandle xTimer )
|
|
|
|
static long lChangedTimerPeriodAlready = pdFALSE;
|
|
|
|
static long lChangedTimerPeriodAlready = pdFALSE;
|
|
|
|
|
|
|
|
|
|
|
|
/* Check the standard demo tasks are running without error. Latch the
|
|
|
|
/* Check the standard demo tasks are running without error. Latch the
|
|
|
|
latest reported error in the pcStatusMessage character pointer. */
|
|
|
|
latest reported error in the pcStatusMessage character pointer. The latched
|
|
|
|
|
|
|
|
string can be viewed using the embedded web server - it is displayed at
|
|
|
|
|
|
|
|
the bottom of the served "task stats" page. */
|
|
|
|
if( xAreGenericQueueTasksStillRunning() != pdTRUE )
|
|
|
|
if( xAreGenericQueueTasksStillRunning() != pdTRUE )
|
|
|
|
{
|
|
|
|
{
|
|
|
|
pcStatusMessage = "Error: GenQueue";
|
|
|
|
pcStatusMessage = "Error: GenQueue";
|
|
|
@ -398,9 +396,9 @@ static long lChangedTimerPeriodAlready = pdFALSE;
|
|
|
|
lChangedTimerPeriodAlready = pdTRUE;
|
|
|
|
lChangedTimerPeriodAlready = pdTRUE;
|
|
|
|
printf( "%s", pcStatusMessage );
|
|
|
|
printf( "%s", pcStatusMessage );
|
|
|
|
|
|
|
|
|
|
|
|
/* This call to xTimerChangePeriod() uses a zero block time. Functions
|
|
|
|
/* This call to xTimerChangePeriod() uses a zero block time.
|
|
|
|
called from inside of a timer callback function must *never* attempt
|
|
|
|
Functions called from inside of a timer callback function must
|
|
|
|
to block. */
|
|
|
|
*never* attempt to block. */
|
|
|
|
xTimerChangePeriod( xCheckTimer, ( mainERROR_CHECK_TIMER_PERIOD_MS ), mainDONT_BLOCK );
|
|
|
|
xTimerChangePeriod( xCheckTimer, ( mainERROR_CHECK_TIMER_PERIOD_MS ), mainDONT_BLOCK );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
@ -438,12 +436,11 @@ portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE;
|
|
|
|
vParTestSetLED( mainTIMER_CONTROLLED_LED, pdTRUE );
|
|
|
|
vParTestSetLED( mainTIMER_CONTROLLED_LED, pdTRUE );
|
|
|
|
|
|
|
|
|
|
|
|
/* This interrupt safe FreeRTOS function can be called from this interrupt
|
|
|
|
/* This interrupt safe FreeRTOS function can be called from this interrupt
|
|
|
|
because the interrupt priority is below the
|
|
|
|
because the interrupt priority is equal to or below the
|
|
|
|
configMAX_SYSCALL_INTERRUPT_PRIORITY setting in FreeRTOSConfig.h. */
|
|
|
|
configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY setting in FreeRTOSConfig.h. */
|
|
|
|
xTimerResetFromISR( xLEDTimer, &xHigherPriorityTaskWoken );
|
|
|
|
xTimerResetFromISR( xLEDButtonTimer, &xHigherPriorityTaskWoken );
|
|
|
|
|
|
|
|
|
|
|
|
/* Clear the interrupt before leaving. This just clears all the interrupts
|
|
|
|
/* Clear the interrupt before leaving. */
|
|
|
|
for simplicity, as only one is actually used in this simple demo anyway. */
|
|
|
|
|
|
|
|
PORTE_ISFR = 0xFFFFFFFFUL;
|
|
|
|
PORTE_ISFR = 0xFFFFFFFFUL;
|
|
|
|
|
|
|
|
|
|
|
|
/* If calling xTimerResetFromISR() caused a task (in this case the timer
|
|
|
|
/* If calling xTimerResetFromISR() caused a task (in this case the timer
|
|
|
@ -461,6 +458,9 @@ static void prvSetupHardware( void )
|
|
|
|
taskDISABLE_INTERRUPTS();
|
|
|
|
taskDISABLE_INTERRUPTS();
|
|
|
|
PORTE_PCR26 = PORT_PCR_MUX( 1 ) | PORT_PCR_IRQC( 0xA ) | PORT_PCR_PE_MASK | PORT_PCR_PS_MASK;
|
|
|
|
PORTE_PCR26 = PORT_PCR_MUX( 1 ) | PORT_PCR_IRQC( 0xA ) | PORT_PCR_PE_MASK | PORT_PCR_PS_MASK;
|
|
|
|
enable_irq( mainGPIO_E_VECTOR );
|
|
|
|
enable_irq( mainGPIO_E_VECTOR );
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* The interrupt calls an interrupt safe API function - so its priority must
|
|
|
|
|
|
|
|
be equal to or lower than configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY. */
|
|
|
|
set_irq_priority( mainGPIO_E_VECTOR, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY );
|
|
|
|
set_irq_priority( mainGPIO_E_VECTOR, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY );
|
|
|
|
|
|
|
|
|
|
|
|
/* Configure the LED outputs. */
|
|
|
|
/* Configure the LED outputs. */
|
|
|
@ -471,18 +471,18 @@ static void prvSetupHardware( void )
|
|
|
|
static void prvCreateDemoSpecificTimers( void )
|
|
|
|
static void prvCreateDemoSpecificTimers( void )
|
|
|
|
{
|
|
|
|
{
|
|
|
|
/* This function creates the timers, but does not start them. This is
|
|
|
|
/* This function creates the timers, but does not start them. This is
|
|
|
|
because the standard demo timer test is started after this function is
|
|
|
|
because the standard demo timer test is started from main(), after this
|
|
|
|
called. The standard demo timer test will deliberatly fill the timer
|
|
|
|
function is called. The standard demo timer test will deliberately fill the
|
|
|
|
command queue - and will fail the test if the command queue already holds
|
|
|
|
timer command queue - and will fail the test if the command queue already
|
|
|
|
start commands for the timers created here. Instead, the timers created in
|
|
|
|
holds start commands for the timers created here. Instead, the timers
|
|
|
|
this function are started from the idle task, at which time, the timer
|
|
|
|
created in this function are started from the idle task, at which time, the
|
|
|
|
service/daemon task will be running, and will have drained the timer command
|
|
|
|
timer service/daemon task will be running, and will have drained the timer
|
|
|
|
queue. */
|
|
|
|
command queue. */
|
|
|
|
|
|
|
|
|
|
|
|
/* Create the software timer that is responsible for turning off the LED
|
|
|
|
/* Create the software timer that is responsible for turning off the LED
|
|
|
|
if the button is not pushed within 5000ms, as described at the top of
|
|
|
|
if the button is not pushed within 5000ms, as described at the top of
|
|
|
|
this file. */
|
|
|
|
this file. */
|
|
|
|
xLEDTimer = xTimerCreate( ( const signed char * ) "ButtonLEDTimer", /* A text name, purely to help debugging. */
|
|
|
|
xLEDButtonTimer = xTimerCreate( ( const signed char * ) "ButtonLEDTimer", /* A text name, purely to help debugging. */
|
|
|
|
( mainBUTTON_LED_TIMER_PERIOD_MS ), /* The timer period, in this case 5000ms (5s). */
|
|
|
|
( mainBUTTON_LED_TIMER_PERIOD_MS ), /* The timer period, in this case 5000ms (5s). */
|
|
|
|
pdFALSE, /* This is a one shot timer, so xAutoReload is set to pdFALSE. */
|
|
|
|
pdFALSE, /* This is a one shot timer, so xAutoReload is set to pdFALSE. */
|
|
|
|
( void * ) 0, /* The ID is not used, so can be set to anything. */
|
|
|
|
( void * ) 0, /* The ID is not used, so can be set to anything. */
|
|
|
@ -535,7 +535,7 @@ void vApplicationStackOverflowHook( xTaskHandle *pxTask, signed char *pcTaskName
|
|
|
|
( void ) pxTask;
|
|
|
|
( void ) pxTask;
|
|
|
|
|
|
|
|
|
|
|
|
/* Run time stack overflow checking is performed if
|
|
|
|
/* Run time stack overflow checking is performed if
|
|
|
|
configconfigCHECK_FOR_STACK_OVERFLOW is defined to 1 or 2. This hook
|
|
|
|
configCHECK_FOR_STACK_OVERFLOW is defined to 1 or 2. This hook
|
|
|
|
function is called if a stack overflow is detected. */
|
|
|
|
function is called if a stack overflow is detected. */
|
|
|
|
taskDISABLE_INTERRUPTS();
|
|
|
|
taskDISABLE_INTERRUPTS();
|
|
|
|
for( ;; );
|
|
|
|
for( ;; );
|
|
|
@ -555,8 +555,12 @@ volatile size_t xFreeHeapSpace;
|
|
|
|
tasks were created in main() (this is part of the test they perform).
|
|
|
|
tasks were created in main() (this is part of the test they perform).
|
|
|
|
Therefore, while the check and LED timers can be created in main(), they
|
|
|
|
Therefore, while the check and LED timers can be created in main(), they
|
|
|
|
cannot be started from main(). Once the scheduler has started, the timer
|
|
|
|
cannot be started from main(). Once the scheduler has started, the timer
|
|
|
|
service task will drain the command queue, and now the check and digit
|
|
|
|
service task will drain the command queue, and now the check and LED
|
|
|
|
counter timers can be started successfully. */
|
|
|
|
timers can be started successfully. Normally the idle task must not
|
|
|
|
|
|
|
|
call a function that could cause it to block in case there are no tasks
|
|
|
|
|
|
|
|
that are able to run. In this case, however, it is ok as posting to the
|
|
|
|
|
|
|
|
timer command queue guarantees that at least the timer service/daemon
|
|
|
|
|
|
|
|
task will be able to execute. */
|
|
|
|
xTimerStart( xCheckTimer, portMAX_DELAY );
|
|
|
|
xTimerStart( xCheckTimer, portMAX_DELAY );
|
|
|
|
xTimerStart( xLED1Timer, portMAX_DELAY );
|
|
|
|
xTimerStart( xLED1Timer, portMAX_DELAY );
|
|
|
|
xTimerStart( xLED2Timer, portMAX_DELAY );
|
|
|
|
xTimerStart( xLED2Timer, portMAX_DELAY );
|
|
|
@ -585,9 +589,9 @@ void vApplicationTickHook( void )
|
|
|
|
|
|
|
|
|
|
|
|
char *pcGetTaskStatusMessage( void )
|
|
|
|
char *pcGetTaskStatusMessage( void )
|
|
|
|
{
|
|
|
|
{
|
|
|
|
/* Not bothered about a critical section here although technically because
|
|
|
|
/* A simple GET function used by a CGI script so it can display the
|
|
|
|
of the task priorities the pointer could change it will be atomic if not
|
|
|
|
execution status at the bottom of the task stats web page served by the
|
|
|
|
near atomic and its not critical. */
|
|
|
|
embedded web server. */
|
|
|
|
if( pcStatusMessage == NULL )
|
|
|
|
if( pcStatusMessage == NULL )
|
|
|
|
{
|
|
|
|
{
|
|
|
|
return "All tasks running without error";
|
|
|
|
return "All tasks running without error";
|
|
|
@ -614,8 +618,9 @@ volatile unsigned long * const pulCurrentSysTickCount = ( ( volatile unsigned lo
|
|
|
|
volatile unsigned long * const pulInterruptCTRLState = ( ( volatile unsigned long *) 0xe000ed04 );
|
|
|
|
volatile unsigned long * const pulInterruptCTRLState = ( ( volatile unsigned long *) 0xe000ed04 );
|
|
|
|
const unsigned long ulSysTickPendingBit = 0x04000000UL;
|
|
|
|
const unsigned long ulSysTickPendingBit = 0x04000000UL;
|
|
|
|
|
|
|
|
|
|
|
|
/* NOTE: There are potentially race conditions here. It is ok to keep
|
|
|
|
/* NOTE: There are potentially race conditions here. However, it is used
|
|
|
|
things simple, without using any additional timer peripherals. */
|
|
|
|
anyway to keep the examples simple, and to avoid reliance on a separate
|
|
|
|
|
|
|
|
timer peripheral. */
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* The SysTick is a down counter. How many clocks have passed since it was
|
|
|
|
/* The SysTick is a down counter. How many clocks have passed since it was
|
|
|
@ -637,7 +642,8 @@ const unsigned long ulSysTickPendingBit = 0x04000000UL;
|
|
|
|
ulSysTickCounts = ulSysTickReloadValue - *pulCurrentSysTickCount;
|
|
|
|
ulSysTickCounts = ulSysTickReloadValue - *pulCurrentSysTickCount;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* Convert the tick count into tenths of a millisecond. */
|
|
|
|
/* Convert the tick count into tenths of a millisecond. THIS ASSUMES
|
|
|
|
|
|
|
|
configTICK_RATE_HZ is 1000! */
|
|
|
|
ulReturn = ( ulTickCount * 10UL ) ;
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ulReturn = ( ulTickCount * 10UL ) ;
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/* Add on the number of tenths of a millisecond that have passed since the
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/* Add on the number of tenths of a millisecond that have passed since the
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