2 FreeRTOS V9.0.0rc2 - Copyright (C) 2016 Real Time Engineers Ltd.
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5 VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
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7 This file is part of the FreeRTOS distribution.
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9 FreeRTOS is free software; you can redistribute it and/or modify it under
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10 the terms of the GNU General Public License (version 2) as published by the
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11 Free Software Foundation >>>> AND MODIFIED BY <<<< the FreeRTOS exception.
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13 ***************************************************************************
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14 >>! NOTE: The modification to the GPL is included to allow you to !<<
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15 >>! distribute a combined work that includes FreeRTOS without being !<<
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16 >>! obliged to provide the source code for proprietary components !<<
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17 >>! outside of the FreeRTOS kernel. !<<
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18 ***************************************************************************
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20 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
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21 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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22 FOR A PARTICULAR PURPOSE. Full license text is available on the following
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23 link: http://www.freertos.org/a00114.html
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25 ***************************************************************************
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27 * FreeRTOS provides completely free yet professionally developed, *
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28 * robust, strictly quality controlled, supported, and cross *
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29 * platform software that is more than just the market leader, it *
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30 * is the industry's de facto standard. *
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32 * Help yourself get started quickly while simultaneously helping *
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33 * to support the FreeRTOS project by purchasing a FreeRTOS *
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34 * tutorial book, reference manual, or both: *
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35 * http://www.FreeRTOS.org/Documentation *
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37 ***************************************************************************
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39 http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading
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40 the FAQ page "My application does not run, what could be wrong?". Have you
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41 defined configASSERT()?
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43 http://www.FreeRTOS.org/support - In return for receiving this top quality
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44 embedded software for free we request you assist our global community by
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45 participating in the support forum.
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47 http://www.FreeRTOS.org/training - Investing in training allows your team to
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48 be as productive as possible as early as possible. Now you can receive
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49 FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers
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50 Ltd, and the world's leading authority on the world's leading RTOS.
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52 http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
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53 including FreeRTOS+Trace - an indispensable productivity tool, a DOS
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54 compatible FAT file system, and our tiny thread aware UDP/IP stack.
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56 http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.
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57 Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.
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59 http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High
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60 Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS
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61 licenses offer ticketed support, indemnification and commercial middleware.
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63 http://www.SafeRTOS.com - High Integrity Systems also provide a safety
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64 engineered and independently SIL3 certified version for use in safety and
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65 mission critical applications that require provable dependability.
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70 /* Standard includes. */
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74 /* FreeRTOS includes. */
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75 #include <FreeRTOS.h>
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80 /* Demo application includes. */
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81 #include "FreeRTOS_UDP_IP.h"
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82 #include "FreeRTOS_Sockets.h"
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83 #include "SimpleClientAndServer.h"
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84 #include "TwoEchoClients.h"
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85 #include "UDPCommandInterpreter.h"
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86 #include "SelectServer.h"
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88 /* UDP command server task parameters. */
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89 #define mainUDP_CLI_TASK_PRIORITY ( tskIDLE_PRIORITY )
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90 #define mainUDP_CLI_PORT_NUMBER ( 5001UL )
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91 #define mainUDP_CLI_TASK_STACK_SIZE ( configMINIMAL_STACK_SIZE )
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93 /* Simple UDP client and server task parameters. */
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94 #define mainSIMPLE_CLIENT_SERVER_TASK_PRIORITY ( tskIDLE_PRIORITY )
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95 #define mainSIMPLE_CLIENT_SERVER_PORT ( 5005UL )
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96 #define mainSIMPLE_CLIENT_SERVER_TASK_STACK_SIZE ( configMINIMAL_STACK_SIZE )
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98 /* Select UDP server task parameters. */
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99 #define mainSELECT_SERVER_TASK_PRIORITY ( tskIDLE_PRIORITY )
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100 #define mainSELECT_SERVER_PORT ( 10001UL )
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101 #define mainSELECT_SERVER_TASK_STACK_SIZE ( configMINIMAL_STACK_SIZE )
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103 /* Echo client task parameters. */
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104 #define mainECHO_CLIENT_TASK_STACK_SIZE ( configMINIMAL_STACK_SIZE * 2 )
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105 #define mainECHO_CLIENT_TASK_PRIORITY ( tskIDLE_PRIORITY + 1 )
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107 /* Set the following constants to 1 or 0 to define which tasks to include and
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109 #define mainCREATE_UDP_CLI_TASKS 1
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110 #define mainCREATE_SIMPLE_UDP_CLIENT_SERVER_TASKS 0
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111 #define mainCREATE_SELECT_UDP_SERVER_TASKS 0
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112 #define mainCREATE_UDP_ECHO_TASKS 1
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114 /*-----------------------------------------------------------*/
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117 * Register commands that can be used with FreeRTOS+CLI through the UDP socket.
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118 * The commands are defined in CLI-commands.c.
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120 extern void vRegisterCLICommands( void );
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122 /* The default IP and MAC address used by the demo. The address configuration
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123 defined here will be used if ipconfigUSE_DHCP is 0, or if ipconfigUSE_DHCP is
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124 1 but a DHCP server could not be contacted. See the online documentation for
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125 more information. */
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126 static const uint8_t ucIPAddress[ 4 ] = { configIP_ADDR0, configIP_ADDR1, configIP_ADDR2, configIP_ADDR3 };
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127 static const uint8_t ucNetMask[ 4 ] = { configNET_MASK0, configNET_MASK1, configNET_MASK2, configNET_MASK3 };
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128 static const uint8_t ucGatewayAddress[ 4 ] = { configGATEWAY_ADDR0, configGATEWAY_ADDR1, configGATEWAY_ADDR2, configGATEWAY_ADDR3 };
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129 static const uint8_t ucDNSServerAddress[ 4 ] = { configDNS_SERVER_ADDR0, configDNS_SERVER_ADDR1, configDNS_SERVER_ADDR2, configDNS_SERVER_ADDR3 };
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131 /* Default MAC address configuration. The demo creates a virtual network
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132 connection that uses this MAC address by accessing the raw Ethernet data
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133 to and from a real network connection on the host PC. See the
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134 configNETWORK_INTERFACE_TO_USE definition for information on how to configure
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135 the real network connection to use. */
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136 const uint8_t ucMACAddress[ 6 ] = { configMAC_ADDR0, configMAC_ADDR1, configMAC_ADDR2, configMAC_ADDR3, configMAC_ADDR4, configMAC_ADDR5 };
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138 /* Used to guard prints to the console. */
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139 static xSemaphoreHandle xConsoleMutex = NULL;
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141 /*-----------------------------------------------------------*/
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145 /******************************************************************************
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147 * See the following web page for information on using this demo.
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148 * http://www.FreeRTOS.org/FreeRTOS-Plus/FreeRTOS_Plus_UDP/Embedded_Ethernet_Examples/RTOS_UDP_CLI_Windows_Simulator.shtml
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150 ******************************************************************************/
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155 const uint32_t ulLongTime_ms = 250UL;
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157 /* Create a mutex that is used to guard against the console being accessed
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158 by more than one task simultaniously. */
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159 xConsoleMutex = xSemaphoreCreateMutex();
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161 /* Initialise the network interface. Tasks that use the network are
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162 created in the network event hook when the network is connected and ready
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163 for use. The address values passed in here are used if ipconfigUSE_DHCP is
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164 set to 0, or if ipconfigUSE_DHCP is set to 1 but a DHCP server cannot be
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166 FreeRTOS_IPInit( ucIPAddress, ucNetMask, ucGatewayAddress, ucDNSServerAddress, ucMACAddress );
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168 /* Register commands with the FreeRTOS+CLI command interpreter. */
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169 vRegisterCLICommands();
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171 /* Start the RTOS scheduler. */
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172 vTaskStartScheduler();
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174 /* If all is well, the scheduler will now be running, and the following
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175 line will never be reached. If the following line does execute, then
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176 there was insufficient FreeRTOS heap memory available for the idle and/or
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177 timer tasks to be created. See the memory management section on the
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178 FreeRTOS web site for more details (this is standard text that is not not
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179 really applicable to the Win32 simulator port). */
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182 Sleep( ulLongTime_ms );
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185 /*-----------------------------------------------------------*/
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187 void vApplicationIdleHook( void )
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189 const unsigned long ulMSToSleep = 5;
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191 /* This function is called on each cycle of the idle task if
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192 configUSE_IDLE_HOOK is set to 1 in FreeRTOSConfig.h. Sleep to reduce CPU
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194 Sleep( ulMSToSleep );
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196 /*-----------------------------------------------------------*/
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198 void vAssertCalled( void )
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200 const unsigned long ulLongSleep = 1000UL;
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201 volatile uint32_t ulBlockVariable = 0UL;
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203 /* Setting ulBlockVariable to a non-zero value in the debugger will allow
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204 this function to be exited. */
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205 taskDISABLE_INTERRUPTS();
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207 while( ulBlockVariable == 0UL )
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209 Sleep( ulLongSleep );
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212 taskENABLE_INTERRUPTS();
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214 /*-----------------------------------------------------------*/
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216 void vOutputString( char *pcMessage )
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218 /* Wrap the standard windows console output (as opposed to the FreeRTOS+CLI
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219 console) with a mutex to ensure it can only be accessed by one task at a
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221 xSemaphoreTake( xConsoleMutex, portMAX_DELAY );
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222 printf( pcMessage );
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223 xSemaphoreGive( xConsoleMutex );
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225 /*-----------------------------------------------------------*/
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227 /* Called by FreeRTOS+UDP when the network connects. */
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228 void vApplicationIPNetworkEventHook( eIPCallbackEvent_t eNetworkEvent )
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230 uint32_t ulIPAddress, ulNetMask, ulGatewayAddress, ulDNSServerAddress;
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231 int8_t cBuffer[ 16 ];
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232 static BaseType_t xTasksAlreadyCreated = pdFALSE;
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234 if( eNetworkEvent == eNetworkUp )
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236 /* Create the tasks that use the IP stack if they have not already been
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238 if( xTasksAlreadyCreated == pdFALSE )
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240 #if( mainCREATE_SIMPLE_UDP_CLIENT_SERVER_TASKS == 1 )
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242 /* Create tasks that demonstrate sending and receiving in both
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243 standard and zero copy mode. */
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244 vStartSimpleUDPClientServerTasks( mainSIMPLE_CLIENT_SERVER_TASK_STACK_SIZE, mainSIMPLE_CLIENT_SERVER_PORT, mainSIMPLE_CLIENT_SERVER_TASK_PRIORITY );
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246 #endif /* mainCREATE_SIMPLE_UDP_CLIENT_SERVER_TASKS */
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248 #if( mainCREATE_SELECT_UDP_SERVER_TASKS == 1 )
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250 /* Create tasks that demonstrate sending and receiving in both
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251 standard and zero copy mode. */
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252 vStartSelectUDPServerTasks( mainSELECT_SERVER_TASK_STACK_SIZE, mainSELECT_SERVER_PORT, mainSELECT_SERVER_TASK_PRIORITY );
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254 #endif /* mainCREATE_SIMPLE_UDP_CLIENT_SERVER_TASKS */
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257 #if( mainCREATE_UDP_ECHO_TASKS == 1 )
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259 /* Create the tasks that transmit to and receive from a standard
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260 echo server (see the web documentation for this port) in both
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261 standard and zero copy mode. */
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262 vStartEchoClientTasks( mainECHO_CLIENT_TASK_STACK_SIZE, mainECHO_CLIENT_TASK_PRIORITY );
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264 #endif /* mainCREATE_UDP_ECHO_TASKS */
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266 #if( mainCREATE_UDP_CLI_TASKS == 1 )
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268 /* Create the task that handles the CLI on a UDP port. The port number
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269 is set using the configUDP_CLI_PORT_NUMBER setting in FreeRTOSConfig.h. */
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270 vStartUDPCommandInterpreterTask( mainUDP_CLI_TASK_STACK_SIZE, mainUDP_CLI_PORT_NUMBER, mainUDP_CLI_TASK_PRIORITY );
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272 #endif /* mainCREATE_UDP_CLI_TASKS */
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274 xTasksAlreadyCreated = pdTRUE;
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277 /* Print out the network configuration, which may have come from a DHCP
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279 FreeRTOS_GetAddressConfiguration( &ulIPAddress, &ulNetMask, &ulGatewayAddress, &ulDNSServerAddress );
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280 vOutputString( "IP Address: " );
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281 FreeRTOS_inet_ntoa( ulIPAddress, cBuffer );
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282 vOutputString( ( char * ) cBuffer );
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283 vOutputString( "\r\nSubnet Mask: " );
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284 FreeRTOS_inet_ntoa( ulNetMask, cBuffer );
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285 vOutputString( ( char * ) cBuffer );
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286 vOutputString( "\r\nGateway Address: " );
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287 FreeRTOS_inet_ntoa( ulGatewayAddress, cBuffer );
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288 vOutputString( ( char * ) cBuffer );
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289 vOutputString( "\r\nDNS Server Address: " );
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290 FreeRTOS_inet_ntoa( ulDNSServerAddress, cBuffer );
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291 vOutputString( ( char * ) cBuffer );
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292 vOutputString( "\r\n\r\n" );
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295 /*-----------------------------------------------------------*/
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297 /* Called automatically when a reply to an outgoing ping is received. */
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298 void vApplicationPingReplyHook( ePingReplyStatus_t eStatus, uint16_t usIdentifier )
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300 static const uint8_t *pcSuccess = ( uint8_t * ) "Ping reply received - ";
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301 static const uint8_t *pcInvalidChecksum = ( uint8_t * ) "Ping reply received with invalid checksum - ";
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302 static const uint8_t *pcInvalidData = ( uint8_t * ) "Ping reply received with invalid data - ";
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303 static uint8_t cMessage[ 50 ];
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309 vOutputString( ( char * ) pcSuccess );
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312 case eInvalidChecksum :
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313 vOutputString( ( char * ) pcInvalidChecksum );
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316 case eInvalidData :
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317 vOutputString( ( char * ) pcInvalidData );
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321 /* It is not possible to get here as all enums have their own
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326 sprintf( ( char * ) cMessage, "identifier %d\r\n", ( int ) usIdentifier );
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327 vOutputString( ( char * ) cMessage );
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329 /*-----------------------------------------------------------*/
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331 void vApplicationMallocFailedHook( void )
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333 /* vApplicationMallocFailedHook() will only be called if
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334 configUSE_MALLOC_FAILED_HOOK is set to 1 in FreeRTOSConfig.h. It is a hook
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335 function that will get called if a call to pvPortMalloc() fails.
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336 pvPortMalloc() is called internally by the kernel whenever a task, queue,
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337 timer or semaphore is created. It is also called by various parts of the
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338 demo application. If heap_1.c, heap_2.c or heap_4.c are used, then the
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339 size of the heap available to pvPortMalloc() is defined by
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340 configTOTAL_HEAP_SIZE in FreeRTOSConfig.h, and the xPortGetFreeHeapSize()
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341 API function can be used to query the size of free heap space that remains
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342 (although it does not provide information on how the remaining heap might
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344 taskDISABLE_INTERRUPTS();
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