2 FreeRTOS V8.2.1 - Copyright (C) 2015 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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73 /* Scheduler includes. */
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74 #include "FreeRTOS.h"
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78 /* Demo includes. */
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80 #include "partest.h"
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84 #include "uip_arp.h"
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87 #include "clock-arch.h"
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89 /*-----------------------------------------------------------*/
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91 /* How long to wait before attempting to connect the MAC again. */
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92 #define uipINIT_WAIT ( 100 / portTICK_PERIOD_MS )
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94 /* Shortcut to the header within the Rx buffer. */
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95 #define xHeader ((struct uip_eth_hdr *) &uip_buf[ 0 ])
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97 /* Standard constant. */
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98 #define uipTOTAL_FRAME_HEADER_SIZE 54
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101 /*-----------------------------------------------------------*/
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104 * Setup the MAC address in the MAC itself, and in the uIP stack.
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106 static void prvSetMACAddress( void );
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109 * Port functions required by the uIP stack.
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111 void clock_init( void );
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112 clock_time_t clock_time( void );
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114 /*-----------------------------------------------------------*/
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116 /* The semaphore used by the ISR to wake the uIP task. */
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117 SemaphoreHandle_t xEMACSemaphore;
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119 /* The buffer used by the uIP stack. In this case the pointer is used to
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120 point to one of the Rx buffers. */
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121 unsigned char *uip_buf = NULL;
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123 /*-----------------------------------------------------------*/
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125 void clock_init(void)
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127 /* This is done when the scheduler starts. */
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129 /*-----------------------------------------------------------*/
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131 clock_time_t clock_time( void )
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133 return xTaskGetTickCount();
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135 /*-----------------------------------------------------------*/
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137 void vuIP_Task( void *pvParameters )
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140 uip_ipaddr_t xIPAddr;
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141 struct timer periodic_timer, arp_timer;
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143 ( void ) pvParameters;
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145 /* Create the semaphore used by the ISR to wake this task. */
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146 vSemaphoreCreateBinary( xEMACSemaphore );
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148 /* Initialise the uIP stack. */
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149 timer_set( &periodic_timer, configTICK_RATE_HZ / 2 );
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150 timer_set( &arp_timer, configTICK_RATE_HZ * 10 );
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152 uip_ipaddr( xIPAddr, configIP_ADDR0, configIP_ADDR1, configIP_ADDR2, configIP_ADDR3 );
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153 uip_sethostaddr( xIPAddr );
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154 uip_ipaddr( xIPAddr, configNET_MASK0, configNET_MASK1, configNET_MASK2, configNET_MASK3 );
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155 uip_setnetmask( xIPAddr );
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158 /* Initialise the MAC. */
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159 while( xEthInitialise() != pdPASS )
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161 vTaskDelay( uipINIT_WAIT );
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164 prvSetMACAddress();
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168 /* Is there received data ready to be processed? */
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169 uip_len = usGetMACRxData();
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171 if( ( uip_len > 0 ) && ( uip_buf != NULL ) )
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173 /* Standard uIP loop taken from the uIP manual. */
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174 if( xHeader->type == htons( UIP_ETHTYPE_IP ) )
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179 /* If the above function invocation resulted in data that
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180 should be sent out on the network, the global variable
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181 uip_len is set to a value > 0. */
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185 vSendMACData( uip_len );
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188 else if( xHeader->type == htons( UIP_ETHTYPE_ARP ) )
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192 /* If the above function invocation resulted in data that
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193 should be sent out on the network, the global variable
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194 uip_len is set to a value > 0. */
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197 vSendMACData( uip_len );
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203 if( ( timer_expired( &periodic_timer ) ) && ( uip_buf != NULL ) )
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205 timer_reset( &periodic_timer );
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206 for( i = 0; i < UIP_CONNS; i++ )
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210 /* If the above function invocation resulted in data that
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211 should be sent out on the network, the global variable
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212 uip_len is set to a value > 0. */
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216 vSendMACData( uip_len );
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220 /* Call the ARP timer function every 10 seconds. */
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221 if( timer_expired( &arp_timer ) )
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223 timer_reset( &arp_timer );
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229 /* We did not receive a packet, and there was no periodic
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230 processing to perform. Block for a fixed period. If a packet
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231 is received during this period we will be woken by the ISR
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232 giving us the Semaphore. */
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233 xSemaphoreTake( xEMACSemaphore, configTICK_RATE_HZ / 2 );
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238 /*-----------------------------------------------------------*/
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240 static void prvSetMACAddress( void )
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242 struct uip_eth_addr xAddr;
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244 /* Configure the MAC address in the uIP stack. */
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245 xAddr.addr[ 0 ] = configMAC_ADDR0;
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246 xAddr.addr[ 1 ] = configMAC_ADDR1;
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247 xAddr.addr[ 2 ] = configMAC_ADDR2;
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248 xAddr.addr[ 3 ] = configMAC_ADDR3;
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249 xAddr.addr[ 4 ] = configMAC_ADDR4;
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250 xAddr.addr[ 5 ] = configMAC_ADDR5;
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251 uip_setethaddr( xAddr );
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253 /*-----------------------------------------------------------*/
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255 void vApplicationProcessFormInput( char *pcInputString )
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258 static char cMessageForDisplay[ 32 ];
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259 static const char *pcMessage = cMessageForDisplay;
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260 extern QueueHandle_t xLCDQueue;
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262 /* Process the form input sent by the IO page of the served HTML. */
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264 c = strstr( pcInputString, "?" );
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267 /* Turn LED's on or off in accordance with the check box status. */
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268 if( strstr( c, "LED0=1" ) != NULL )
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271 vParTestSetLED( 3, 1 );
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276 vParTestSetLED( 3, 0 );
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279 /* Find the start of the text to be displayed on the LCD. */
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280 pcText = strstr( c, "LCD=" );
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281 pcText += strlen( "LCD=" );
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283 /* Terminate the file name for further processing within uIP. */
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286 /* Terminate the LCD string. */
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287 c = strstr( pcText, " " );
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293 /* Add required spaces. */
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294 while( ( c = strstr( pcText, "+" ) ) != NULL )
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299 /* Write the message to the LCD. */
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300 strcpy( cMessageForDisplay, pcText );
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301 xQueueSend( xLCDQueue, &pcMessage, portMAX_DELAY );
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