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@ -1,5 +1,5 @@
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/*
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FreeRTOS V7.6.0 - Copyright (C) 2013 Real Time Engineers Ltd.
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FreeRTOS V7.6.0 - Copyright (C) 2013 Real Time Engineers Ltd.
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All rights reserved
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VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
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@ -63,6 +63,52 @@
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1 tab == 4 spaces!
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*/
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/******************************************************************************
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* NOTE 1: This project provides two demo applications. A simple blinky style
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* project, and a more comprehensive test and demo application that makes use of
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* the FreeRTOS+CLI, FreeRTOS+UDP and FreeRTOS+FAT SL components. The
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* mainCREATE_SIMPLE_BLINKY_DEMO_ONLY setting in main.c is used to select
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* between the two. See the notes on using mainCREATE_SIMPLE_BLINKY_DEMO_ONLY
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* in main.c. This file implements the comprehensive test and demo version,
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* which is fully documented on the following URL:
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* http://www.FreeRTOS.org/Atmel_SAM4E_RTOS_Demo.html
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*
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* NOTE 2: This file only contains the source code that is specific to the
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* full demo. Generic functions, such FreeRTOS hook functions, and functions
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* required to configure the hardware, are defined in main.c.
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******************************************************************************
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*
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* Full user instructions are provided on the following URL:
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* http://www.FreeRTOS.org/Atmel_SAM4E_RTOS_Demo.html
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*
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* main_full():
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* + Uses FreeRTOS+FAT SL to create a set of example files on a RAM disk.
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* + Displays some bitmaps on the LCD.
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* + Registers sample generic, file system related and UDP related commands
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* with FreeRTOS+CLI.
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* + Creates all the standard demo application tasks and software timers.
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* + Starts the scheduler.
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*
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* A UDP command server and optionally two UDP echo client tasks are created
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* from the network event hook after an IP address has been obtained. The IP
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* address is displayed on the LCD.
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*
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* A "check software timer" is created to provide visual feedback of the system
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* status. The timer's period is initially set to three seconds. The callback
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* function associated with the timer checks all the standard demo tasks are not
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* only still executed, but are executing without reporting any errors. If the
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* timer discovers 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 software timer also toggles the LED marked D4 - so if the LED toggles
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* every three seconds then no potential errors have been found, and if the LED
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* toggles every 200ms then a potential error has been found in at least one
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* task.
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*
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* Information on accessing the CLI and file system, and using the UDP echo
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* tasks is provided on http://www.FreeRTOS.org/Atmel_SAM4E_RTOS_Demo.html
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*
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*/
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/* FreeRTOS includes. */
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#include "FreeRTOS.h"
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#include "task.h"
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@ -120,14 +166,15 @@ ISR triggered task. */
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/* Misc. */
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#define mainDONT_BLOCK ( 0 )
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/* Note: If the application is started without the network cable plugged in
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/* Note: If the application is started without the network cable plugged in
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then ipconfigUDP_TASK_PRIORITY should be set to 0 in FreeRTOSIPConfig.h to
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ensure the IP task is created at the idle priority. This is because the Atmel
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ASF GMAC driver polls the GMAC looking for a connection, and doing so will
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prevent any lower priority tasks from executing. In this demo the IP task is
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started at the idle priority, then set to configMAX_PRIORITIES - 2 in the
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ensure the IP task is created at the idle priority. This is because the Atmel
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ASF GMAC driver polls the GMAC looking for a connection, and doing so will
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prevent any lower priority tasks from executing. In this demo the IP task is
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started at the idle priority, then set to configMAX_PRIORITIES - 2 in the
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network event hook only after a connection has been established (when the event
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passed into the network event hook is eNetworkUp). */
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passed into the network event hook is eNetworkUp).
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http://www.FreeRTOS.org/udp */
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#define mainCONNECTED_IP_TASK_PRIORITY ( configMAX_PRIORITIES - 2 )
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#define mainDISCONNECTED_IP_TASK_PRIORITY ( tskIDLE_PRIORITY )
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@ -136,7 +183,10 @@ passed into the network event hook is eNetworkUp). */
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#define mainUDP_CLI_PORT_NUMBER ( 5001UL )
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#define mainUDP_CLI_TASK_STACK_SIZE ( configMINIMAL_STACK_SIZE * 2U )
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/* Set to 1 to include the UDP echo client tasks. */
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/* Set to 1 to include the UDP echo client tasks in the build. The echo clients
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require the IP address of the echo server to be defined using the
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configECHO_SERVER_ADDR0 to configECHO_SERVER_ADDR3 constants in
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FreeRTOSConfig.h. */
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#define mainINCLUDE_ECHO_CLIENT_TASKS 1
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/*-----------------------------------------------------------*/
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@ -146,23 +196,25 @@ passed into the network event hook is eNetworkUp). */
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*/
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static void prvCheckTimerCallback( xTimerHandle xTimer );
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/*
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* Creates a set of sample files on a RAM disk.
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/*
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* Creates a set of sample files on a RAM disk. http://www.FreeRTOS.org/fat_sl
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*/
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extern void vCreateAndVerifySampleFiles( void );
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/*
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* Register the generic commands that can be used with FreeRTOS+CLI.
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* Register sample generic commands that can be used with FreeRTOS+CLI. Type
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* 'help' in the command line to see a list of registered commands.
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* http://www.FreeRTOS.org/cli
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*/
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extern void vRegisterSampleCLICommands( void );
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/*
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* Register the file system commands that can be used with FreeRTOS+CLI.
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* Register sample file system commands that can be used with FreeRTOS+CLI.
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*/
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extern void vRegisterFileSystemCLICommands( void );
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/*
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* Register the UDP related commands that can be used with FreeRTOS+CLI.
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* Register sample UDP related commands that can be used with FreeRTOS+CLI.
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*/
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extern void vRegisterUDPCLICommands( void );
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@ -188,11 +240,13 @@ Note each node on a network must have a unique MAC address. */
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const uint8_t ucMACAddress[ 6 ] = { configMAC_ADDR0, configMAC_ADDR1, configMAC_ADDR2, configMAC_ADDR3, configMAC_ADDR4, configMAC_ADDR5 };
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/*-----------------------------------------------------------*/
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int main_full( void )
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{
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xTimerHandle xTimer = NULL;
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/* Initialise the LCD and output the bitmap. */
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/* Initialise the LCD and output a bitmap. The IP address will also be
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displayed on the LCD when it has been obtained. */
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vInitialiseLCD();
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/* If the file system is only going to be accessed from one task then
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@ -200,19 +254,20 @@ xTimerHandle xTimer = NULL;
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before the RTOS scheduler is started. If the file system is going to be
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access from more than one task then F_FS_THREAD_AWARE must be set to 1 and
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the set of sample files are created from the idle task hook function
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vApplicationIdleHook() - which is defined in this file. */
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vApplicationIdleHook(). */
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#if( F_FS_THREAD_AWARE == 0 )
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{
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/* Initialise the drive and file system, then create a few example
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files. The output from this function just goes to the stdout window,
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allowing the output to be viewed when the UDP command console is not
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connected. */
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files. The files can be viewed and accessed via the CLI. View the
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documentation page for this demo (link at the top of this file) for more
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information. */
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vCreateAndVerifySampleFiles();
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}
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#endif
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/* Register example generic, file system related and UDP related CLI
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commands respectively. */
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/* Register example generic, file system related and UDP related CLI
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commands respectively. Type 'help' into the command console to view a list
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of registered commands. */
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vRegisterSampleCLICommands();
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vRegisterFileSystemCLICommands();
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vRegisterUDPCLICommands();
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@ -221,8 +276,8 @@ xTimerHandle xTimer = NULL;
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created in the network event hook when the network is connected and ready
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for use. The address values passed in here are used if ipconfigUSE_DHCP is
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set to 0, or if ipconfigUSE_DHCP is set to 1 but a DHCP server cannot be
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contacted. The Nabto service task is created automatically if
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ipconfigFREERTOS_PLUS_NABTO is set to 1 in FreeRTOSIPConfig.h. */
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contacted. The IP address actually used is displayed on the LCD (after DHCP
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has completed if DHCP is used). */
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FreeRTOS_IPInit( ucIPAddress, ucNetMask, ucGatewayAddress, ucDNSServerAddress, ucMACAddress );
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/* Create all the other standard demo tasks. */
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@ -326,6 +381,9 @@ unsigned long ulErrorOccurred = pdFALSE;
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}
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}
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/* Toggle the LED to give visual feedback of the system status. The rate at
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which the LED toggles will increase to mainERROR_CHECK_TIMER_PERIOD_MS if a
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suspected error has been found in any of the standard demo tasks. */
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vParTestToggleLED( mainCHECK_LED );
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}
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/*-----------------------------------------------------------*/
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@ -348,38 +406,55 @@ char cIPAddress[ 20 ];
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passed into the network event hook is eNetworkUp). */
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if( eNetworkEvent == eNetworkUp )
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{
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/* Ensure tasks are only created once. */
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if( lTasksAlreadyCreated == pdFALSE )
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{
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/* Create the task that handles the CLI on a UDP port. The port number
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is set using the configUDP_CLI_PORT_NUMBER setting in FreeRTOSConfig.h. */
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{
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/* Create the task that handles the CLI on a UDP port. The port
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number is set using the configUDP_CLI_PORT_NUMBER setting in
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FreeRTOSConfig.h. */
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vStartUDPCommandInterpreterTask( mainUDP_CLI_TASK_STACK_SIZE, mainUDP_CLI_PORT_NUMBER, mainUDP_CLI_TASK_PRIORITY );
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#if( mainINCLUDE_ECHO_CLIENT_TASKS == 1 )
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{
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/* Create the UDP echo tasks. The UDP echo tasks require the IP
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address of the echo server to be defined using the
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configECHO_SERVER_ADDR0 to configECHO_SERVER_ADDR3 constants in
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FreeRTOSConfig.h. */
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vStartEchoClientTasks( configMINIMAL_STACK_SIZE, tskIDLE_PRIORITY );
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}
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#endif
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}
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/* Obtain the IP address, convert it to a string, then display. */
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/* Obtain the IP address, convert it to a string, then display it on the
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LCD. */
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FreeRTOS_GetAddressConfiguration( &ulIPAddress, NULL, NULL, NULL );
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FreeRTOS_inet_ntoa( ulIPAddress, cIPAddress );
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ili93xx_draw_string( ulXCoord, ulYCoord, ( uint8_t * ) "IP: " );
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ili93xx_draw_string( ulXCoord + ulIPAddressOffset, ulYCoord, ( uint8_t * ) cIPAddress );
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/* Set the IP task up to the desired priority now it has connected. */
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/* Set the priority of the IP task up to the desired priority now it has
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connected. */
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vTaskPrioritySet( NULL, mainCONNECTED_IP_TASK_PRIORITY );
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}
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/* NOTE: At the time of writing the Ethernet driver does not report the
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cable being unplugged - so the following if() condition will never be met.
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It is included for possible future updates to the driver. */
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if( eNetworkEvent == eNetworkDown )
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{
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/* Ensure the Atmel GMAC drivers don't hog all the CPU time as they look
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for a new connection by lowering the priority of the IP task to that of
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the Idle task. */
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vTaskPrioritySet( NULL, tskIDLE_PRIORITY );
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/* Disconnected - so no IP address. */
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ili93xx_draw_string( ulXCoord, ulYCoord, ( uint8_t * ) "IP: " );
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}
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}
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/*-----------------------------------------------------------*/
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void vFullDemoIdleHook( void )
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{
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{
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/* If the file system is only going to be accessed from one task then
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F_FS_THREAD_AWARE can be set to 0 and the set of example files is created
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before the RTOS scheduler is started. If the file system is going to be
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@ -405,10 +480,10 @@ void vFullDemoIdleHook( void )
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void vFullDemoTickHook( void )
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{
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/* Call the periodic queue overwrite from ISR demo. */
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/* Call the periodic queue overwrite from ISR test function. */
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vQueueOverwritePeriodicISRDemo();
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/* Call the queue set ISR test function. */
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/* Call the periodic queue set ISR test function. */
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vQueueSetAccessQueueSetFromISR();
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}
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/*-----------------------------------------------------------*/
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@ -416,7 +491,8 @@ void vFullDemoTickHook( void )
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/* Called automatically when a reply to an outgoing ping is received. */
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void vApplicationPingReplyHook( ePingReplyStatus_t eStatus, uint16_t usIdentifier )
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{
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/* This demo has nowhere to output any information so does nothing. */
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/* This demo has nowhere to output any information so does nothing, but the
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IP address resolved for the pined URL is displayed in the CLI. */
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( void ) usIdentifier;
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( void ) eStatus;
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}
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Richard Barry
11 years ago