Eric Ebert / Mbed 2 deprecated CoOS

CoOS Demonstrator adapted to mbed Hardware.

Dependencies:   mbed

main.cpp@0:57690853989a, 2010-12-03 (annotated)

Committer:
ericebert
Date:
Fri Dec 03 19:45:30 2010 +0000
Revision:
0:57690853989a
Some basic LED-Flashing works in the CoOS-RTOS using Tasks

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ericebert 0:57690853989a 1 #include "mbed.h"
ericebert 0:57690853989a 2 #include <CoOS.h>
ericebert 0:57690853989a 3
ericebert 0:57690853989a 4 Serial pc(USBTX, USBRX);
ericebert 0:57690853989a 5
ericebert 0:57690853989a 6 /*---------------------------------- Define ---------------------------------*/
ericebert 0:57690853989a 7 #define STK_SIZE 128 /*!< Stack size. */
ericebert 0:57690853989a 8 #define INIT_TASK_PRIO 11 /*!< Priority of "init_task" task. */
ericebert 0:57690853989a 9 #define A_TASK_PRIO 10 /*!< Priority of "A" task. */
ericebert 0:57690853989a 10 #define B_TASK_PRIO 10 /*!< Priority of "B" task. */
ericebert 0:57690853989a 11 #define CLK_TASK_PRIO 10 /*!< Priority of "clock" task. */
ericebert 0:57690853989a 12
ericebert 0:57690853989a 13 /*---------------------------------- Variable Define -------------------------*/
ericebert 0:57690853989a 14 OS_STK init_task_stk[STK_SIZE]; /*!< The stack of "init_task" task. */
ericebert 0:57690853989a 15 OS_STK a_task_stk[STK_SIZE]; /*!< The stack of "a" task. */
ericebert 0:57690853989a 16 OS_STK b_task_stk[STK_SIZE]; /*!< The stack of "b" task. */
ericebert 0:57690853989a 17 OS_STK clk_task_stk[STK_SIZE]; /*!< The stack of "clcok" task. */
ericebert 0:57690853989a 18
ericebert 0:57690853989a 19 OS_MutexID mut_LED; /*!< Mutex id related to LED. */
ericebert 0:57690853989a 20
ericebert 0:57690853989a 21 OS_FlagID a_flg;
ericebert 0:57690853989a 22 OS_FlagID b_flg;
ericebert 0:57690853989a 23 U8 errInfo[32]; /*!< Save error code. */
ericebert 0:57690853989a 24
ericebert 0:57690853989a 25
ericebert 0:57690853989a 26 DigitalOut myled(LED1);
ericebert 0:57690853989a 27
ericebert 0:57690853989a 28 /**
ericebert 0:57690853989a 29 *******************************************************************************
ericebert 0:57690853989a 30 * @brief Switch on LED
ericebert 0:57690853989a 31 * @param[in] None
ericebert 0:57690853989a 32 * @param[out] None
ericebert 0:57690853989a 33 * @retval None
ericebert 0:57690853989a 34 * @par Description
ericebert 0:57690853989a 35 * @details This function use to Switch on specify led in LCD.
ericebert 0:57690853989a 36 *******************************************************************************
ericebert 0:57690853989a 37 */
ericebert 0:57690853989a 38 void LED_On ()
ericebert 0:57690853989a 39 {
ericebert 0:57690853989a 40 CoEnterMutexSection(mut_LED);
ericebert 0:57690853989a 41 myled =1;
ericebert 0:57690853989a 42 CoLeaveMutexSection(mut_LED);
ericebert 0:57690853989a 43 }
ericebert 0:57690853989a 44
ericebert 0:57690853989a 45 /**
ericebert 0:57690853989a 46 *******************************************************************************
ericebert 0:57690853989a 47 * @brief Switch off LED
ericebert 0:57690853989a 48 * @param[in] None
ericebert 0:57690853989a 49 * @param[out] None
ericebert 0:57690853989a 50 * @retval None
ericebert 0:57690853989a 51 * @par Description
ericebert 0:57690853989a 52 * @details This function use to Switch off specify led in LCD.
ericebert 0:57690853989a 53 *******************************************************************************
ericebert 0:57690853989a 54 */
ericebert 0:57690853989a 55 void LED_Off () {
ericebert 0:57690853989a 56
ericebert 0:57690853989a 57 CoEnterMutexSection(mut_LED);
ericebert 0:57690853989a 58 myled = 0;
ericebert 0:57690853989a 59 CoLeaveMutexSection(mut_LED);
ericebert 0:57690853989a 60 }
ericebert 0:57690853989a 61
ericebert 0:57690853989a 62
ericebert 0:57690853989a 63 /**
ericebert 0:57690853989a 64 *******************************************************************************
ericebert 0:57690853989a 65 * @brief Function 'signal_func' called from multiple tasks
ericebert 0:57690853989a 66 * @param[in] None
ericebert 0:57690853989a 67 * @param[out] None
ericebert 0:57690853989a 68 * @retval None
ericebert 0:57690853989a 69 * @par Description
ericebert 0:57690853989a 70 * @details This function use to Set flag for multiple tasks.
ericebert 0:57690853989a 71 *******************************************************************************
ericebert 0:57690853989a 72 */
ericebert 0:57690853989a 73 void signal_func (const char* fromString)
ericebert 0:57690853989a 74 {
ericebert 0:57690853989a 75
ericebert 0:57690853989a 76 pc.printf(fromString);
ericebert 0:57690853989a 77 CoSetFlag(b_flg);
ericebert 0:57690853989a 78 CoTickDelay(50);
ericebert 0:57690853989a 79 CoSetFlag(b_flg);
ericebert 0:57690853989a 80 CoTickDelay(50);
ericebert 0:57690853989a 81 CoSetFlag(a_flg);
ericebert 0:57690853989a 82 CoTickDelay(50);
ericebert 0:57690853989a 83 }
ericebert 0:57690853989a 84
ericebert 0:57690853989a 85
ericebert 0:57690853989a 86
ericebert 0:57690853989a 87 /**
ericebert 0:57690853989a 88 *******************************************************************************
ericebert 0:57690853989a 89 * @brief Task 1 'phaseA': Phase A output
ericebert 0:57690853989a 90 * @param[in] pdata A pointer to parameter passed to task.
ericebert 0:57690853989a 91 * @param[out] None
ericebert 0:57690853989a 92 * @retval None
ericebert 0:57690853989a 93 *******************************************************************************
ericebert 0:57690853989a 94 */
ericebert 0:57690853989a 95 void taskA (void *pdata) {
ericebert 0:57690853989a 96 for (;;) {
ericebert 0:57690853989a 97 CoWaitForSingleFlag(a_flg,0);
ericebert 0:57690853989a 98 LED_On();
ericebert 0:57690853989a 99 signal_func("\r\nSignal from Task A"); /*!< call common signal function */
ericebert 0:57690853989a 100 LED_Off();
ericebert 0:57690853989a 101 }
ericebert 0:57690853989a 102 }
ericebert 0:57690853989a 103
ericebert 0:57690853989a 104
ericebert 0:57690853989a 105 /**
ericebert 0:57690853989a 106 *******************************************************************************
ericebert 0:57690853989a 107 * @brief Task 2 'phaseB': Phase B output
ericebert 0:57690853989a 108 * @param[in] pdata A pointer to parameter passed to task.
ericebert 0:57690853989a 109 * @param[out] None
ericebert 0:57690853989a 110 * @retval None
ericebert 0:57690853989a 111 *******************************************************************************
ericebert 0:57690853989a 112 */
ericebert 0:57690853989a 113 void taskB (void *pdata) {
ericebert 0:57690853989a 114 for (;;) {
ericebert 0:57690853989a 115 CoWaitForSingleFlag(a_flg,0);
ericebert 0:57690853989a 116 LED_On ();
ericebert 0:57690853989a 117 signal_func("\r\nSignal from Task B"); /*!< call common signal function */
ericebert 0:57690853989a 118 LED_Off();
ericebert 0:57690853989a 119 }
ericebert 0:57690853989a 120 }
ericebert 0:57690853989a 121
ericebert 0:57690853989a 122
ericebert 0:57690853989a 123
ericebert 0:57690853989a 124 /**
ericebert 0:57690853989a 125 *******************************************************************************
ericebert 0:57690853989a 126 * @brief Task 5 'clock': Signal Clock
ericebert 0:57690853989a 127 * @param[in] pdata A pointer to parameter passed to task.
ericebert 0:57690853989a 128 * @param[out] None
ericebert 0:57690853989a 129 * @retval None
ericebert 0:57690853989a 130 *******************************************************************************
ericebert 0:57690853989a 131 */
ericebert 0:57690853989a 132 void clock (void *pdata) {
ericebert 0:57690853989a 133 for (;;) {
ericebert 0:57690853989a 134 CoWaitForSingleFlag(b_flg,0);
ericebert 0:57690853989a 135 LED_On ();
ericebert 0:57690853989a 136 CoTickDelay(10);
ericebert 0:57690853989a 137 LED_Off();
ericebert 0:57690853989a 138 }
ericebert 0:57690853989a 139 }
ericebert 0:57690853989a 140
ericebert 0:57690853989a 141
ericebert 0:57690853989a 142 /**
ericebert 0:57690853989a 143 *******************************************************************************
ericebert 0:57690853989a 144 * @brief "init_task" task code
ericebert 0:57690853989a 145 * @param[in] pdata A pointer to parameter passed to task.
ericebert 0:57690853989a 146 * @param[out] None
ericebert 0:57690853989a 147 * @retval None
ericebert 0:57690853989a 148 * @par Description
ericebert 0:57690853989a 149 * @details This task use to create other tasks, all mutexs and flags,and so on.
ericebert 0:57690853989a 150 *******************************************************************************
ericebert 0:57690853989a 151 */
ericebert 0:57690853989a 152 void init_task (void *pdata)
ericebert 0:57690853989a 153 {
ericebert 0:57690853989a 154 pdata = pdata;
ericebert 0:57690853989a 155
ericebert 0:57690853989a 156 mut_LED = CoCreateMutex();
ericebert 0:57690853989a 157 a_flg = CoCreateFlag(TRUE,0);
ericebert 0:57690853989a 158 b_flg = CoCreateFlag(TRUE,0);
ericebert 0:57690853989a 159
ericebert 0:57690853989a 160 CoCreateTask(taskA,0,A_TASK_PRIO,&a_task_stk[STK_SIZE-1],STK_SIZE);
ericebert 0:57690853989a 161 CoCreateTask(taskB,0,B_TASK_PRIO,&b_task_stk[STK_SIZE-1],STK_SIZE);
ericebert 0:57690853989a 162 CoCreateTask(clock,0,CLK_TASK_PRIO,&clk_task_stk[STK_SIZE-1],STK_SIZE);
ericebert 0:57690853989a 163 CoSetFlag(a_flg);
ericebert 0:57690853989a 164 CoExitTask(); /*!< Delete "init_task" task. */
ericebert 0:57690853989a 165 }
ericebert 0:57690853989a 166
ericebert 0:57690853989a 167
ericebert 0:57690853989a 168 /**
ericebert 0:57690853989a 169 *******************************************************************************
ericebert 0:57690853989a 170 * @brief main function
ericebert 0:57690853989a 171 * @param[in] None
ericebert 0:57690853989a 172 * @param[out] None
ericebert 0:57690853989a 173 * @retval None
ericebert 0:57690853989a 174 *******************************************************************************
ericebert 0:57690853989a 175 */
ericebert 0:57690853989a 176 int main()
ericebert 0:57690853989a 177 {
ericebert 0:57690853989a 178 //SystemInit(); /*!< Initialize the MCU clocks */
ericebert 0:57690853989a 179
ericebert 0:57690853989a 180 pc.printf ("\r\n");
ericebert 0:57690853989a 181 pc.printf ("\r\nCooCox RTOS Demo\n");
ericebert 0:57690853989a 182 CoInitOS(); /*!< Initial CooCox RTOS. */
ericebert 0:57690853989a 183 pc.printf ("\r\n CoInitOS done.");
ericebert 0:57690853989a 184 CoCreateTask( init_task,0,INIT_TASK_PRIO,&init_task_stk[STK_SIZE-1],STK_SIZE);
ericebert 0:57690853989a 185 pc.printf ("\r\n CoCreateTask init_task done.");
ericebert 0:57690853989a 186 CoStartOS();
ericebert 0:57690853989a 187 pc.printf ("\r\n CoStartOS done.");
ericebert 0:57690853989a 188
ericebert 0:57690853989a 189 while (1);
ericebert 0:57690853989a 190 }