2 FreeRTOS.org V5.4.0 - Copyright (C) 2003-2009 Richard Barry.
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4 This file is part of the FreeRTOS.org distribution.
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6 FreeRTOS.org is free software; you can redistribute it and/or modify it
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7 under the terms of the GNU General Public License (version 2) as published
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8 by the Free Software Foundation and modified by the FreeRTOS exception.
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9 **NOTE** The exception to the GPL is included to allow you to distribute a
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10 combined work that includes FreeRTOS.org without being obliged to provide
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11 the source code for any proprietary components. Alternative commercial
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12 license and support terms are also available upon request. See the
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13 licensing section of http://www.FreeRTOS.org for full details.
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15 FreeRTOS.org is distributed in the hope that it will be useful, but WITHOUT
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16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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17 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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20 You should have received a copy of the GNU General Public License along
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21 with FreeRTOS.org; if not, write to the Free Software Foundation, Inc., 59
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22 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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25 ***************************************************************************
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27 * Get the FreeRTOS eBook! See http://www.FreeRTOS.org/Documentation *
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29 * This is a concise, step by step, 'hands on' guide that describes both *
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30 * general multitasking concepts and FreeRTOS specifics. It presents and *
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31 * explains numerous examples that are written using the FreeRTOS API. *
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32 * Full source code for all the examples is provided in an accompanying *
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35 ***************************************************************************
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39 Please ensure to read the configuration and relevant port sections of the
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40 online documentation.
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42 http://www.FreeRTOS.org - Documentation, latest information, license and
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45 http://www.SafeRTOS.com - A version that is certified for use in safety
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48 http://www.OpenRTOS.com - Commercial support, development, porting,
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49 licensing and training services.
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51 /* Standard includes. */
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54 /* Scheduler includes. */
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55 #include "FreeRTOS.h"
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61 #include "uip_arp.h"
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64 #include "clock-arch.h"
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66 /* Demo includes. */
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68 #include "partest.h"
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70 /*-----------------------------------------------------------*/
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72 /* MAC address configuration. */
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73 #define uipMAC_ADDR0 0x00
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74 #define uipMAC_ADDR1 0x12
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75 #define uipMAC_ADDR2 0x13
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76 #define uipMAC_ADDR3 0x10
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77 #define uipMAC_ADDR4 0x15
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78 #define uipMAC_ADDR5 0x11
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80 /* IP address configuration. */
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81 #define uipIP_ADDR0 192
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82 #define uipIP_ADDR1 168
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83 #define uipIP_ADDR2 0
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84 #define uipIP_ADDR3 200
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86 /* How long to wait before attempting to connect the MAC again. */
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87 #define uipINIT_WAIT 200
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89 /* Shortcut to the header within the Rx buffer. */
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90 #define xHeader ((struct uip_eth_hdr *) &uip_buf[ 0 ])
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92 /* Standard constant. */
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93 #define uipTOTAL_FRAME_HEADER_SIZE 54
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95 /*-----------------------------------------------------------*/
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98 * Send the uIP buffer to the MAC.
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100 static void prvENET_Send(void);
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103 * Setup the MAC address in the MAC itself, and in the uIP stack.
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105 static void prvSetMACAddress( void );
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108 * Port functions required by the uIP stack.
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110 void clock_init( void );
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111 clock_time_t clock_time( void );
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113 /*-----------------------------------------------------------*/
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115 /* The semaphore used by the ISR to wake the uIP task. */
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116 extern xSemaphoreHandle xEMACSemaphore;
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118 /*-----------------------------------------------------------*/
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120 void clock_init(void)
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122 /* This is done when the scheduler starts. */
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124 /*-----------------------------------------------------------*/
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126 clock_time_t clock_time( void )
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128 return xTaskGetTickCount();
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130 /*-----------------------------------------------------------*/
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132 void vuIP_Task( void *pvParameters )
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135 uip_ipaddr_t xIPAddr;
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136 struct timer periodic_timer, arp_timer;
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137 extern void ( vEMAC_ISR_Wrapper )( void );
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139 /* Create the semaphore used by the ISR to wake this task. */
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140 vSemaphoreCreateBinary( xEMACSemaphore );
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142 /* Initialise the uIP stack. */
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143 timer_set( &periodic_timer, configTICK_RATE_HZ / 2 );
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144 timer_set( &arp_timer, configTICK_RATE_HZ * 10 );
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146 uip_ipaddr( xIPAddr, uipIP_ADDR0, uipIP_ADDR1, uipIP_ADDR2, uipIP_ADDR3 );
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147 uip_sethostaddr( xIPAddr );
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150 /* Initialise the MAC. */
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151 while( Init_EMAC() != pdPASS )
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153 vTaskDelay( uipINIT_WAIT );
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156 portENTER_CRITICAL();
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158 IntEnable = INT_RX_DONE;
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159 VICIntEnable |= 0x00200000;
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160 VICVectAddr21 = ( portLONG ) vEMAC_ISR_Wrapper;
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161 prvSetMACAddress();
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163 portEXIT_CRITICAL();
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168 /* Is there received data ready to be processed? */
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169 uip_len = uiGetEMACRxData( uip_buf );
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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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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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203 if( timer_expired( &periodic_timer ) )
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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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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 prvENET_Send(void)
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244 /* Copy the header into the Tx buffer. */
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245 CopyToFrame_EMAC( uip_buf, uipTOTAL_FRAME_HEADER_SIZE );
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246 if( uip_len > uipTOTAL_FRAME_HEADER_SIZE )
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248 CopyToFrame_EMAC( uip_appdata, ( uip_len - uipTOTAL_FRAME_HEADER_SIZE ) );
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251 DoSend_EMAC( uip_len );
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255 /* Copy the header into the Tx buffer. */
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256 CopyToFrame_EMAC( uip_buf, uipTOTAL_FRAME_HEADER_SIZE );
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257 if( uip_len > uipTOTAL_FRAME_HEADER_SIZE )
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259 CopyToFrame_EMAC( uip_appdata, ( uip_len - uipTOTAL_FRAME_HEADER_SIZE ) );
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262 DoSend_EMAC( uip_len );
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264 /*-----------------------------------------------------------*/
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266 static void prvSetMACAddress( void )
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268 struct uip_eth_addr xAddr;
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270 /* Configure the MAC address in the uIP stack. */
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271 xAddr.addr[ 0 ] = uipMAC_ADDR0;
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272 xAddr.addr[ 1 ] = uipMAC_ADDR1;
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273 xAddr.addr[ 2 ] = uipMAC_ADDR2;
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274 xAddr.addr[ 3 ] = uipMAC_ADDR3;
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275 xAddr.addr[ 4 ] = uipMAC_ADDR4;
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276 xAddr.addr[ 5 ] = uipMAC_ADDR5;
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277 uip_setethaddr( xAddr );
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279 /*-----------------------------------------------------------*/
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281 void vApplicationProcessFormInput( portCHAR *pcInputString, portBASE_TYPE xInputLength )
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284 static portCHAR cMessageForDisplay[ 32 ];
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285 extern xQueueHandle xLCDQueue;
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286 xLCDMessage xLCDMessage;
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288 /* Process the form input sent by the IO page of the served HTML. */
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290 c = strstr( pcInputString, "?" );
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293 /* Turn LED's on or off in accordance with the check box status. */
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294 if( strstr( c, "LED0=1" ) != NULL )
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296 vParTestSetLED( 5, 0 );
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300 vParTestSetLED( 5, 1 );
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303 if( strstr( c, "LED1=1" ) != NULL )
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305 vParTestSetLED( 6, 0 );
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309 vParTestSetLED( 6, 1 );
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312 if( strstr( c, "LED2=1" ) != NULL )
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314 vParTestSetLED( 7, 0 );
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318 vParTestSetLED( 7, 1 );
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321 /* Find the start of the text to be displayed on the LCD. */
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322 pcText = strstr( c, "LCD=" );
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323 pcText += strlen( "LCD=" );
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325 /* Terminate the file name for further processing within uIP. */
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328 /* Terminate the LCD string. */
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329 c = strstr( pcText, " " );
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335 /* Add required spaces. */
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336 while( ( c = strstr( pcText, "+" ) ) != NULL )
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341 /* Write the message to the LCD. */
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342 strcpy( cMessageForDisplay, pcText );
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343 xLCDMessage.xColumn = 0;
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344 xLCDMessage.pcMessage = cMessageForDisplay;
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345 xQueueSend( xLCDQueue, &xLCDMessage, portMAX_DELAY );
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