2 FreeRTOS.org V5.0.4 - Copyright (C) 2003-2008 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
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7 it under the terms of the GNU General Public License as published by
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8 the Free Software Foundation; either version 2 of the License, or
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9 (at your option) any later version.
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11 FreeRTOS.org is distributed in the hope that it will be useful,
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12 but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 GNU General Public License for more details.
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16 You should have received a copy of the GNU General Public License
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17 along with FreeRTOS.org; if not, write to the Free Software
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18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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20 A special exception to the GPL can be applied should you wish to distribute
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21 a combined work that includes FreeRTOS.org, without being obliged to provide
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22 the source code for any proprietary components. See the licensing section
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23 of http://www.FreeRTOS.org for full details of how and when the exception
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26 ***************************************************************************
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27 ***************************************************************************
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29 * SAVE TIME AND MONEY! We can port FreeRTOS.org to your own hardware, *
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30 * and even write all or part of your application on your behalf. *
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31 * See http://www.OpenRTOS.com for details of the services we provide to *
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32 * expedite your project. *
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34 ***************************************************************************
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35 ***************************************************************************
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37 Please ensure to read the configuration and relevant port sections of the
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38 online documentation.
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40 http://www.FreeRTOS.org - Documentation, latest information, license and
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43 http://www.SafeRTOS.com - A version that is certified for use in safety
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46 http://www.OpenRTOS.com - Commercial support, development, porting,
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47 licensing and training services.
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52 * Creates all the demo application tasks, then starts the scheduler. The WEB
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53 * documentation provides more details of the standard demo application tasks.
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54 * In addition to the standard demo tasks, the following tasks and tests are
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55 * defined and/or created within this file:
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57 * "Fast Interrupt Test" - A high frequency periodic interrupt is generated
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58 * using a free running timer to demonstrate the use of the
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59 * configKERNEL_INTERRUPT_PRIORITY configuration constant. The interrupt
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60 * service routine measures the number of processor clocks that occur between
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61 * each interrupt - and in so doing measures the jitter in the interrupt timing.
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62 * The maximum measured jitter time is latched in the ulMaxJitter variable, and
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63 * displayed on the OLED display by the 'OLED' task as described below. The
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64 * fast interrupt is configured and handled in the timertest.c source file.
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66 * "OLED" task - the OLED task is a 'gatekeeper' task. It is the only task that
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67 * is permitted to access the display directly. Other tasks wishing to write a
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68 * message to the OLED send the message on a queue to the OLED task instead of
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69 * accessing the OLED themselves. The OLED task just blocks on the queue waiting
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70 * for messages - waking and displaying the messages as they arrive.
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72 * "Check" hook - This only executes every five seconds from the tick hook.
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73 * Its main function is to check that all the standard demo tasks are still
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74 * operational. Should any unexpected behaviour within a demo task be discovered
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75 * the tick hook will write an error to the OLED (via the OLED task). If all the
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76 * demo tasks are executing with their expected behaviour then the check task
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77 * writes PASS to the OLED (again via the OLED task), as described above.
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79 * "uIP" task - This is the task that handles the uIP stack. All TCP/IP
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80 * processing is performed in this task.
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86 /*************************************************************************
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87 * Please ensure to read http://www.freertos.org/portLM3Sxxxx_Eclipse.html
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88 * which provides information on configuring and running this demo for the
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89 * various Luminary Micro EKs.
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90 *************************************************************************/
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95 /* Standard includes. */
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98 /* Scheduler includes. */
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99 #include "FreeRTOS.h"
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102 #include "semphr.h"
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104 /* Hardware library includes. */
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105 #include "hw_memmap.h"
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106 #include "hw_types.h"
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107 #include "hw_sysctl.h"
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108 #include "sysctl.h"
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111 #include "rit128x96x4.h"
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112 #include "osram128x64x4.h"
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113 #include "formike128x128x16.h"
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115 /* Demo app includes. */
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116 #include "BlockQ.h"
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118 #include "integer.h"
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119 #include "blocktim.h"
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121 #include "partest.h"
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122 #include "semtest.h"
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124 #include "lcd_message.h"
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125 #include "bitmap.h"
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126 #include "GenQTest.h"
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128 #include "recmutex.h"
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129 #include "IntQueue.h"
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131 /*-----------------------------------------------------------*/
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133 /* The time between cycles of the 'check' functionality (defined within the
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135 #define mainCHECK_DELAY ( ( portTickType ) 5000 / portTICK_RATE_MS )
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137 /* Size of the stack allocated to the uIP task. */
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138 #define mainBASIC_WEB_STACK_SIZE ( configMINIMAL_STACK_SIZE * 3 )
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140 /* The OLED task uses the sprintf function so requires a little more stack too. */
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141 #define mainOLED_TASK_STACK_SIZE ( configMINIMAL_STACK_SIZE + 50 )
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143 /* Task priorities. */
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144 #define mainQUEUE_POLL_PRIORITY ( tskIDLE_PRIORITY + 2 )
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145 #define mainCHECK_TASK_PRIORITY ( tskIDLE_PRIORITY + 3 )
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146 #define mainSEM_TEST_PRIORITY ( tskIDLE_PRIORITY + 1 )
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147 #define mainBLOCK_Q_PRIORITY ( tskIDLE_PRIORITY + 2 )
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148 #define mainCREATOR_TASK_PRIORITY ( tskIDLE_PRIORITY + 3 )
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149 #define mainINTEGER_TASK_PRIORITY ( tskIDLE_PRIORITY )
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150 #define mainGEN_QUEUE_TASK_PRIORITY ( tskIDLE_PRIORITY )
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152 /* The maximum number of message that can be waiting for display at any one
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154 #define mainOLED_QUEUE_SIZE ( 3 )
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156 /* Dimensions the buffer into which the jitter time is written. */
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157 #define mainMAX_MSG_LEN 25
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159 /* The period of the system clock in nano seconds. This is used to calculate
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160 the jitter time in nano seconds. */
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161 #define mainNS_PER_CLOCK ( ( unsigned portLONG ) ( ( 1.0 / ( double ) configCPU_CLOCK_HZ ) * 1000000000.0 ) )
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163 /* Constants used when writing strings to the display. */
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164 #define mainCHARACTER_HEIGHT ( 9 )
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165 #define mainMAX_ROWS_128 ( mainCHARACTER_HEIGHT * 14 )
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166 #define mainMAX_ROWS_96 ( mainCHARACTER_HEIGHT * 10 )
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167 #define mainMAX_ROWS_64 ( mainCHARACTER_HEIGHT * 7 )
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168 #define mainFULL_SCALE ( 15 )
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169 #define ulSSI_FREQUENCY ( 3500000UL )
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171 /*-----------------------------------------------------------*/
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174 * The task that handles the uIP stack. All TCP/IP processing is performed in
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177 extern void vuIP_Task( void *pvParameters );
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180 * The display is written two by more than one task so is controlled by a
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181 * 'gatekeeper' task. This is the only task that is actually permitted to
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182 * access the display directly. Other tasks wanting to display a message send
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183 * the message to the gatekeeper.
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185 static void vOLEDTask( void *pvParameters );
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188 * Configure the hardware for the demo.
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190 static void prvSetupHardware( void );
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193 * Configures the high frequency timers - those used to measure the timing
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194 * jitter while the real time kernel is executing.
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196 extern void vSetupHighFrequencyTimer( void );
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199 * The idle hook is used to run a test of the scheduler context switch
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202 void vApplicationIdleHook( void ) __attribute__((naked));
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203 /*-----------------------------------------------------------*/
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205 /* The queue used to send messages to the OLED task. */
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206 xQueueHandle xOLEDQueue;
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208 /* The welcome text. */
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209 const portCHAR * const pcWelcomeMessage = " www.FreeRTOS.org";
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211 /* Variables used to detect the test in the idle hook failing. */
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212 unsigned portLONG ulIdleError = pdFALSE;
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214 /*-----------------------------------------------------------*/
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216 /*************************************************************************
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217 * Please ensure to read http://www.freertos.org/portLM3Sxxxx_Eclipse.html
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218 * which provides information on configuring and running this demo for the
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219 * various Luminary Micro EKs.
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220 *************************************************************************/
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223 prvSetupHardware();
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225 /* Create the queue used by the OLED task. Messages for display on the OLED
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226 are received via this queue. */
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227 xOLEDQueue = xQueueCreate( mainOLED_QUEUE_SIZE, sizeof( xOLEDMessage ) );
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229 /* Create the uIP task if running on a processor that includes a MAC and
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231 if( SysCtlPeripheralPresent( SYSCTL_PERIPH_ETH ) )
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233 xTaskCreate( vuIP_Task, ( signed portCHAR * ) "uIP", mainBASIC_WEB_STACK_SIZE, NULL, mainCHECK_TASK_PRIORITY - 1, NULL );
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236 /* Start the standard demo tasks. */
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237 vStartBlockingQueueTasks( mainBLOCK_Q_PRIORITY );
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238 vCreateBlockTimeTasks();
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239 vStartSemaphoreTasks( mainSEM_TEST_PRIORITY );
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240 vStartPolledQueueTasks( mainQUEUE_POLL_PRIORITY );
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241 vStartIntegerMathTasks( mainINTEGER_TASK_PRIORITY );
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242 vStartGenericQueueTasks( mainGEN_QUEUE_TASK_PRIORITY );
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243 vStartQueuePeekTasks();
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244 vStartRecursiveMutexTasks();
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245 vStartInterruptQueueTasks();
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247 /* Start the tasks defined within this file/specific to this demo. */
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248 xTaskCreate( vOLEDTask, ( signed portCHAR * ) "OLED", mainOLED_TASK_STACK_SIZE, NULL, tskIDLE_PRIORITY, NULL );
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250 /* The suicide tasks must be created last as they need to know how many
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251 tasks were running prior to their creation in order to ascertain whether
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252 or not the correct/expected number of tasks are running at any given time. */
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253 vCreateSuicidalTasks( mainCREATOR_TASK_PRIORITY );
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255 /* Configure the high frequency interrupt used to measure the interrupt
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257 vSetupHighFrequencyTimer();
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259 /* Start the scheduler. */
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260 vTaskStartScheduler();
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262 /* Will only get here if there was insufficient memory to create the idle
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267 /*-----------------------------------------------------------*/
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269 void prvSetupHardware( void )
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271 /* If running on Rev A2 silicon, turn the LDO voltage up to 2.75V. This is
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272 a workaround to allow the PLL to operate reliably. */
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273 if( DEVICE_IS_REVA2 )
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275 SysCtlLDOSet( SYSCTL_LDO_2_75V );
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278 /* Set the clocking to run from the PLL at 50 MHz */
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279 SysCtlClockSet( SYSCTL_SYSDIV_4 | SYSCTL_USE_PLL | SYSCTL_OSC_MAIN | SYSCTL_XTAL_8MHZ );
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281 /* Enable Port F for Ethernet LEDs
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283 LED1 Bit 2 Output */
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284 SysCtlPeripheralEnable( SYSCTL_PERIPH_GPIOF );
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285 GPIODirModeSet( GPIO_PORTF_BASE, (GPIO_PIN_2 | GPIO_PIN_3), GPIO_DIR_MODE_HW );
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286 GPIOPadConfigSet( GPIO_PORTF_BASE, (GPIO_PIN_2 | GPIO_PIN_3 ), GPIO_STRENGTH_2MA, GPIO_PIN_TYPE_STD );
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288 vParTestInitialise();
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290 /*-----------------------------------------------------------*/
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292 void vApplicationTickHook( void )
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294 static xOLEDMessage xMessage = { "PASS" };
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295 static unsigned portLONG ulTicksSinceLastDisplay = 0;
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296 portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE;
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298 /* Called from every tick interrupt. Have enough ticks passed to make it
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299 time to perform our health status check again? */
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300 ulTicksSinceLastDisplay++;
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301 if( ulTicksSinceLastDisplay >= mainCHECK_DELAY )
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303 ulTicksSinceLastDisplay = 0;
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305 /* Has an error been found in any task? */
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306 if( xAreGenericQueueTasksStillRunning() != pdTRUE )
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308 xMessage.pcMessage = "ERROR IN GEN Q";
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310 else if( xAreQueuePeekTasksStillRunning() != pdTRUE )
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312 xMessage.pcMessage = "ERROR IN PEEK Q";
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314 else if( xAreBlockingQueuesStillRunning() != pdTRUE )
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316 xMessage.pcMessage = "ERROR IN BLOCK Q";
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318 else if( xAreBlockTimeTestTasksStillRunning() != pdTRUE )
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320 xMessage.pcMessage = "ERROR IN BLOCK TIME";
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322 else if( xAreSemaphoreTasksStillRunning() != pdTRUE )
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324 xMessage.pcMessage = "ERROR IN SEMAPHORE";
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326 else if( xArePollingQueuesStillRunning() != pdTRUE )
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328 xMessage.pcMessage = "ERROR IN POLL Q";
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330 else if( xIsCreateTaskStillRunning() != pdTRUE )
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332 xMessage.pcMessage = "ERROR IN CREATE";
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334 else if( xAreIntegerMathsTaskStillRunning() != pdTRUE )
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336 xMessage.pcMessage = "ERROR IN MATH";
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338 else if( xAreRecursiveMutexTasksStillRunning() != pdTRUE )
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340 xMessage.pcMessage = "ERROR IN REC MUTEX";
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342 else if( ulIdleError != pdFALSE )
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344 xMessage.pcMessage = "ERROR IN HOOK";
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346 else if( xAreIntQueueTasksStillRunning() != pdTRUE )
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348 xMessage.pcMessage = "ERROR IN INT QUEUE";
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352 /* Send the message to the OLED gatekeeper for display. */
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353 xHigherPriorityTaskWoken = pdFALSE;
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354 xQueueSendFromISR( xOLEDQueue, &xMessage, &xHigherPriorityTaskWoken );
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357 /*-----------------------------------------------------------*/
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359 void vOLEDTask( void *pvParameters )
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361 xOLEDMessage xMessage;
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362 unsigned portLONG ulY, ulMaxY;
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363 static portCHAR cMessage[ mainMAX_MSG_LEN ];
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364 extern volatile unsigned portLONG ulMaxJitter;
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365 unsigned portBASE_TYPE uxUnusedStackOnEntry, uxUnusedStackNow;
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366 const unsigned portCHAR *pucImage;
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368 /* Functions to access the OLED. The one used depends on the dev kit
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370 void ( *vOLEDInit )( unsigned portLONG ) = NULL;
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371 void ( *vOLEDStringDraw )( const portCHAR *, unsigned portLONG, unsigned portLONG, unsigned portCHAR ) = NULL;
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372 void ( *vOLEDImageDraw )( const unsigned portCHAR *, unsigned portLONG, unsigned portLONG, unsigned portLONG, unsigned portLONG ) = NULL;
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373 void ( *vOLEDClear )( void ) = NULL;
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375 /* Just for demo purposes. */
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376 uxUnusedStackOnEntry = uxTaskGetStackHighWaterMark( NULL );
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378 /* Map the OLED access functions to the driver functions that are appropriate
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379 for the evaluation kit being used. */
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380 switch( HWREG( SYSCTL_DID1 ) & SYSCTL_DID1_PRTNO_MASK )
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382 case SYSCTL_DID1_PRTNO_6965 :
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383 case SYSCTL_DID1_PRTNO_2965 : vOLEDInit = OSRAM128x64x4Init;
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384 vOLEDStringDraw = OSRAM128x64x4StringDraw;
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385 vOLEDImageDraw = OSRAM128x64x4ImageDraw;
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386 vOLEDClear = OSRAM128x64x4Clear;
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387 ulMaxY = mainMAX_ROWS_64;
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388 pucImage = pucBasicBitmap;
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391 case SYSCTL_DID1_PRTNO_1968 :
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392 case SYSCTL_DID1_PRTNO_8962 : vOLEDInit = RIT128x96x4Init;
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393 vOLEDStringDraw = RIT128x96x4StringDraw;
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394 vOLEDImageDraw = RIT128x96x4ImageDraw;
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395 vOLEDClear = RIT128x96x4Clear;
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396 ulMaxY = mainMAX_ROWS_96;
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397 pucImage = pucBasicBitmap;
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400 default : vOLEDInit = vFormike128x128x16Init;
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401 vOLEDStringDraw = vFormike128x128x16StringDraw;
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402 vOLEDImageDraw = vFormike128x128x16ImageDraw;
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403 vOLEDClear = vFormike128x128x16Clear;
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404 ulMaxY = mainMAX_ROWS_128;
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405 pucImage = pucGrLibBitmap;
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411 /* Initialise the OLED and display a startup message. */
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412 vOLEDInit( ulSSI_FREQUENCY );
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413 vOLEDStringDraw( "POWERED BY FreeRTOS", 0, 0, mainFULL_SCALE );
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414 vOLEDImageDraw( pucImage, 0, mainCHARACTER_HEIGHT + 1, bmpBITMAP_WIDTH, bmpBITMAP_HEIGHT );
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418 /* Wait for a message to arrive that requires displaying. */
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419 xQueueReceive( xOLEDQueue, &xMessage, portMAX_DELAY );
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421 /* Write the message on the next available row. */
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422 ulY += mainCHARACTER_HEIGHT;
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423 if( ulY >= ulMaxY )
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425 ulY = mainCHARACTER_HEIGHT;
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427 vOLEDStringDraw( pcWelcomeMessage, 0, 0, mainFULL_SCALE );
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430 /* Display the message along with the maximum jitter time from the
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431 high priority time test. */
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432 sprintf( cMessage, "%s [%uns]", xMessage.pcMessage, ulMaxJitter * mainNS_PER_CLOCK );
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433 vOLEDStringDraw( cMessage, 0, ulY, mainFULL_SCALE );
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436 /*-----------------------------------------------------------*/
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438 void vApplicationStackOverflowHook( xTaskHandle *pxTask, signed portCHAR *pcTaskName )
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