Austin Blackstone / Mbed 2 deprecated client-lwip-lightswitch-demo-expanded

mbed client lightswitch demo

Dependencies:   mbed Socket lwip-eth lwip-sys lwip

Fork of mbed-client-classic-example-lwip by Austin Blackstone

mbed-rtos/rtx/TARGET_CORTEX_A/rt_System.c@11:cada08fc8a70, 2016-06-09 (annotated)

Committer:
mbedAustin
Date:
Thu Jun 09 17:08:36 2016 +0000
Revision:
11:cada08fc8a70
Commit for public Consumption

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbedAustin 11:cada08fc8a70 1 /*----------------------------------------------------------------------------
mbedAustin 11:cada08fc8a70 2 * RL-ARM - RTX
mbedAustin 11:cada08fc8a70 3 *----------------------------------------------------------------------------
mbedAustin 11:cada08fc8a70 4 * Name: RT_SYSTEM.C
mbedAustin 11:cada08fc8a70 5 * Purpose: System Task Manager
mbedAustin 11:cada08fc8a70 6 * Rev.: 8 April 2015
mbedAustin 11:cada08fc8a70 7 *----------------------------------------------------------------------------
mbedAustin 11:cada08fc8a70 8 *
mbedAustin 11:cada08fc8a70 9 * Copyright (c) 1999-2009 KEIL, 2009-2015 ARM Germany GmbH
mbedAustin 11:cada08fc8a70 10 * All rights reserved.
mbedAustin 11:cada08fc8a70 11 * Redistribution and use in source and binary forms, with or without
mbedAustin 11:cada08fc8a70 12 * modification, are permitted provided that the following conditions are met:
mbedAustin 11:cada08fc8a70 13 * - Redistributions of source code must retain the above copyright
mbedAustin 11:cada08fc8a70 14 * notice, this list of conditions and the following disclaimer.
mbedAustin 11:cada08fc8a70 15 * - Redistributions in binary form must reproduce the above copyright
mbedAustin 11:cada08fc8a70 16 * notice, this list of conditions and the following disclaimer in the
mbedAustin 11:cada08fc8a70 17 * documentation and/or other materials provided with the distribution.
mbedAustin 11:cada08fc8a70 18 * - Neither the name of ARM nor the names of its contributors may be used
mbedAustin 11:cada08fc8a70 19 * to endorse or promote products derived from this software without
mbedAustin 11:cada08fc8a70 20 * specific prior written permission.
mbedAustin 11:cada08fc8a70 21 *
mbedAustin 11:cada08fc8a70 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbedAustin 11:cada08fc8a70 23 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbedAustin 11:cada08fc8a70 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
mbedAustin 11:cada08fc8a70 25 * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
mbedAustin 11:cada08fc8a70 26 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
mbedAustin 11:cada08fc8a70 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
mbedAustin 11:cada08fc8a70 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
mbedAustin 11:cada08fc8a70 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
mbedAustin 11:cada08fc8a70 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
mbedAustin 11:cada08fc8a70 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
mbedAustin 11:cada08fc8a70 32 * POSSIBILITY OF SUCH DAMAGE.
mbedAustin 11:cada08fc8a70 33 *---------------------------------------------------------------------------*/
mbedAustin 11:cada08fc8a70 34
mbedAustin 11:cada08fc8a70 35 #include "rt_TypeDef.h"
mbedAustin 11:cada08fc8a70 36 #include "RTX_Config.h"
mbedAustin 11:cada08fc8a70 37 #include "rt_Task.h"
mbedAustin 11:cada08fc8a70 38 #include "rt_System.h"
mbedAustin 11:cada08fc8a70 39 #include "rt_Event.h"
mbedAustin 11:cada08fc8a70 40 #include "rt_List.h"
mbedAustin 11:cada08fc8a70 41 #include "rt_Mailbox.h"
mbedAustin 11:cada08fc8a70 42 #include "rt_Semaphore.h"
mbedAustin 11:cada08fc8a70 43 #include "rt_Time.h"
mbedAustin 11:cada08fc8a70 44 #include "rt_Timer.h"
mbedAustin 11:cada08fc8a70 45 #include "rt_Robin.h"
mbedAustin 11:cada08fc8a70 46 #ifdef __CORTEX_A9
mbedAustin 11:cada08fc8a70 47 #include "rt_HAL_CA.h"
mbedAustin 11:cada08fc8a70 48 #else
mbedAustin 11:cada08fc8a70 49 #include "rt_HAL_CM.h"
mbedAustin 11:cada08fc8a70 50 #endif
mbedAustin 11:cada08fc8a70 51
mbedAustin 11:cada08fc8a70 52 /*----------------------------------------------------------------------------
mbedAustin 11:cada08fc8a70 53 * Global Variables
mbedAustin 11:cada08fc8a70 54 *---------------------------------------------------------------------------*/
mbedAustin 11:cada08fc8a70 55
mbedAustin 11:cada08fc8a70 56 int os_tick_irqn;
mbedAustin 11:cada08fc8a70 57 U8 scheduler_suspended = 0; // flag set by rt_suspend, cleared by rt_resume, read by SVC_Handler
mbedAustin 11:cada08fc8a70 58
mbedAustin 11:cada08fc8a70 59 /*----------------------------------------------------------------------------
mbedAustin 11:cada08fc8a70 60 * Local Variables
mbedAustin 11:cada08fc8a70 61 *---------------------------------------------------------------------------*/
mbedAustin 11:cada08fc8a70 62
mbedAustin 11:cada08fc8a70 63 static volatile BIT os_lock;
mbedAustin 11:cada08fc8a70 64 static volatile BIT os_psh_flag;
mbedAustin 11:cada08fc8a70 65 #ifndef __CORTEX_A9
mbedAustin 11:cada08fc8a70 66 static U8 pend_flags;
mbedAustin 11:cada08fc8a70 67 #endif
mbedAustin 11:cada08fc8a70 68 /*----------------------------------------------------------------------------
mbedAustin 11:cada08fc8a70 69 * Global Functions
mbedAustin 11:cada08fc8a70 70 *---------------------------------------------------------------------------*/
mbedAustin 11:cada08fc8a70 71
mbedAustin 11:cada08fc8a70 72 #define RL_RTX_VER 0x473
mbedAustin 11:cada08fc8a70 73
mbedAustin 11:cada08fc8a70 74 #if defined (__CC_ARM)
mbedAustin 11:cada08fc8a70 75 __asm void $$RTX$$version (void) {
mbedAustin 11:cada08fc8a70 76 /* Export a version number symbol for a version control. */
mbedAustin 11:cada08fc8a70 77
mbedAustin 11:cada08fc8a70 78 EXPORT __RL_RTX_VER
mbedAustin 11:cada08fc8a70 79
mbedAustin 11:cada08fc8a70 80 __RL_RTX_VER EQU RL_RTX_VER
mbedAustin 11:cada08fc8a70 81 }
mbedAustin 11:cada08fc8a70 82 #endif
mbedAustin 11:cada08fc8a70 83
mbedAustin 11:cada08fc8a70 84
mbedAustin 11:cada08fc8a70 85 /*--------------------------- rt_suspend ------------------------------------*/
mbedAustin 11:cada08fc8a70 86
mbedAustin 11:cada08fc8a70 87 extern U32 sysUserTimerWakeupTime(void);
mbedAustin 11:cada08fc8a70 88
mbedAustin 11:cada08fc8a70 89 U32 rt_suspend (void) {
mbedAustin 11:cada08fc8a70 90 /* Suspend OS scheduler */
mbedAustin 11:cada08fc8a70 91 U32 delta = 0xFFFF;
mbedAustin 11:cada08fc8a70 92 #ifdef __CMSIS_RTOS
mbedAustin 11:cada08fc8a70 93 U32 sleep;
mbedAustin 11:cada08fc8a70 94 #endif
mbedAustin 11:cada08fc8a70 95
mbedAustin 11:cada08fc8a70 96 rt_tsk_lock();
mbedAustin 11:cada08fc8a70 97 scheduler_suspended = 1;
mbedAustin 11:cada08fc8a70 98
mbedAustin 11:cada08fc8a70 99 if (os_dly.p_dlnk) {
mbedAustin 11:cada08fc8a70 100 delta = os_dly.delta_time;
mbedAustin 11:cada08fc8a70 101 }
mbedAustin 11:cada08fc8a70 102 #ifdef __CMSIS_RTOS
mbedAustin 11:cada08fc8a70 103 sleep = sysUserTimerWakeupTime();
mbedAustin 11:cada08fc8a70 104 if (sleep < delta) delta = sleep;
mbedAustin 11:cada08fc8a70 105 #else
mbedAustin 11:cada08fc8a70 106 if (os_tmr.next) {
mbedAustin 11:cada08fc8a70 107 if (os_tmr.tcnt < delta) delta = os_tmr.tcnt;
mbedAustin 11:cada08fc8a70 108 }
mbedAustin 11:cada08fc8a70 109 #endif
mbedAustin 11:cada08fc8a70 110
mbedAustin 11:cada08fc8a70 111 return (delta);
mbedAustin 11:cada08fc8a70 112 }
mbedAustin 11:cada08fc8a70 113
mbedAustin 11:cada08fc8a70 114
mbedAustin 11:cada08fc8a70 115 /*--------------------------- rt_resume -------------------------------------*/
mbedAustin 11:cada08fc8a70 116
mbedAustin 11:cada08fc8a70 117 extern void sysUserTimerUpdate (U32 sleep_time);
mbedAustin 11:cada08fc8a70 118
mbedAustin 11:cada08fc8a70 119 void rt_resume (U32 sleep_time) {
mbedAustin 11:cada08fc8a70 120 /* Resume OS scheduler after suspend */
mbedAustin 11:cada08fc8a70 121 P_TCB next;
mbedAustin 11:cada08fc8a70 122 U32 delta;
mbedAustin 11:cada08fc8a70 123
mbedAustin 11:cada08fc8a70 124 os_tsk.run->state = READY;
mbedAustin 11:cada08fc8a70 125 rt_put_rdy_first (os_tsk.run);
mbedAustin 11:cada08fc8a70 126
mbedAustin 11:cada08fc8a70 127 os_robin.task = NULL;
mbedAustin 11:cada08fc8a70 128
mbedAustin 11:cada08fc8a70 129 /* Update delays. */
mbedAustin 11:cada08fc8a70 130 if (os_dly.p_dlnk) {
mbedAustin 11:cada08fc8a70 131 delta = sleep_time;
mbedAustin 11:cada08fc8a70 132 if (delta >= os_dly.delta_time) {
mbedAustin 11:cada08fc8a70 133 delta -= os_dly.delta_time;
mbedAustin 11:cada08fc8a70 134 os_time += os_dly.delta_time;
mbedAustin 11:cada08fc8a70 135 os_dly.delta_time = 1;
mbedAustin 11:cada08fc8a70 136 while (os_dly.p_dlnk) {
mbedAustin 11:cada08fc8a70 137 rt_dec_dly();
mbedAustin 11:cada08fc8a70 138 if (delta == 0) break;
mbedAustin 11:cada08fc8a70 139 delta--;
mbedAustin 11:cada08fc8a70 140 os_time++;
mbedAustin 11:cada08fc8a70 141 }
mbedAustin 11:cada08fc8a70 142 } else {
mbedAustin 11:cada08fc8a70 143 os_time += delta;
mbedAustin 11:cada08fc8a70 144 os_dly.delta_time -= delta;
mbedAustin 11:cada08fc8a70 145 }
mbedAustin 11:cada08fc8a70 146 } else {
mbedAustin 11:cada08fc8a70 147 os_time += sleep_time;
mbedAustin 11:cada08fc8a70 148 }
mbedAustin 11:cada08fc8a70 149
mbedAustin 11:cada08fc8a70 150 /* Check the user timers. */
mbedAustin 11:cada08fc8a70 151 #ifdef __CMSIS_RTOS
mbedAustin 11:cada08fc8a70 152 sysUserTimerUpdate(sleep_time);
mbedAustin 11:cada08fc8a70 153 #else
mbedAustin 11:cada08fc8a70 154 if (os_tmr.next) {
mbedAustin 11:cada08fc8a70 155 delta = sleep_time;
mbedAustin 11:cada08fc8a70 156 if (delta >= os_tmr.tcnt) {
mbedAustin 11:cada08fc8a70 157 delta -= os_tmr.tcnt;
mbedAustin 11:cada08fc8a70 158 os_tmr.tcnt = 1;
mbedAustin 11:cada08fc8a70 159 while (os_tmr.next) {
mbedAustin 11:cada08fc8a70 160 rt_tmr_tick();
mbedAustin 11:cada08fc8a70 161 if (delta == 0) break;
mbedAustin 11:cada08fc8a70 162 delta--;
mbedAustin 11:cada08fc8a70 163 }
mbedAustin 11:cada08fc8a70 164 } else {
mbedAustin 11:cada08fc8a70 165 os_tmr.tcnt -= delta;
mbedAustin 11:cada08fc8a70 166 }
mbedAustin 11:cada08fc8a70 167 }
mbedAustin 11:cada08fc8a70 168 #endif
mbedAustin 11:cada08fc8a70 169
mbedAustin 11:cada08fc8a70 170 /* Switch back to highest ready task */
mbedAustin 11:cada08fc8a70 171 next = rt_get_first (&os_rdy);
mbedAustin 11:cada08fc8a70 172 rt_switch_req (next);
mbedAustin 11:cada08fc8a70 173
mbedAustin 11:cada08fc8a70 174 scheduler_suspended = 0;
mbedAustin 11:cada08fc8a70 175 rt_tsk_unlock();
mbedAustin 11:cada08fc8a70 176 }
mbedAustin 11:cada08fc8a70 177
mbedAustin 11:cada08fc8a70 178
mbedAustin 11:cada08fc8a70 179 /*--------------------------- rt_tsk_lock -----------------------------------*/
mbedAustin 11:cada08fc8a70 180
mbedAustin 11:cada08fc8a70 181 void rt_tsk_lock (void) {
mbedAustin 11:cada08fc8a70 182 /* Prevent task switching by locking out scheduler */
mbedAustin 11:cada08fc8a70 183 if (os_lock == __TRUE) // don't lock again if already locked
mbedAustin 11:cada08fc8a70 184 return;
mbedAustin 11:cada08fc8a70 185
mbedAustin 11:cada08fc8a70 186 if (os_tick_irqn < 0) {
mbedAustin 11:cada08fc8a70 187 OS_LOCK();
mbedAustin 11:cada08fc8a70 188 os_lock = __TRUE;
mbedAustin 11:cada08fc8a70 189 OS_UNPEND (&pend_flags);
mbedAustin 11:cada08fc8a70 190 } else {
mbedAustin 11:cada08fc8a70 191 OS_X_LOCK(os_tick_irqn);
mbedAustin 11:cada08fc8a70 192 os_lock = __TRUE;
mbedAustin 11:cada08fc8a70 193 OS_X_UNPEND (&pend_flags);
mbedAustin 11:cada08fc8a70 194 }
mbedAustin 11:cada08fc8a70 195 }
mbedAustin 11:cada08fc8a70 196
mbedAustin 11:cada08fc8a70 197
mbedAustin 11:cada08fc8a70 198 /*--------------------------- rt_tsk_unlock ---------------------------------*/
mbedAustin 11:cada08fc8a70 199
mbedAustin 11:cada08fc8a70 200 void rt_tsk_unlock (void) {
mbedAustin 11:cada08fc8a70 201 /* Unlock scheduler and re-enable task switching */
mbedAustin 11:cada08fc8a70 202 if (os_tick_irqn < 0) {
mbedAustin 11:cada08fc8a70 203 OS_UNLOCK();
mbedAustin 11:cada08fc8a70 204 os_lock = __FALSE;
mbedAustin 11:cada08fc8a70 205 OS_PEND (pend_flags, os_psh_flag);
mbedAustin 11:cada08fc8a70 206 os_psh_flag = __FALSE;
mbedAustin 11:cada08fc8a70 207 } else {
mbedAustin 11:cada08fc8a70 208 OS_X_UNLOCK(os_tick_irqn);
mbedAustin 11:cada08fc8a70 209 os_lock = __FALSE;
mbedAustin 11:cada08fc8a70 210 OS_X_PEND (pend_flags, os_psh_flag);
mbedAustin 11:cada08fc8a70 211 os_psh_flag = __FALSE;
mbedAustin 11:cada08fc8a70 212 }
mbedAustin 11:cada08fc8a70 213 }
mbedAustin 11:cada08fc8a70 214
mbedAustin 11:cada08fc8a70 215
mbedAustin 11:cada08fc8a70 216 /*--------------------------- rt_psh_req ------------------------------------*/
mbedAustin 11:cada08fc8a70 217
mbedAustin 11:cada08fc8a70 218 void rt_psh_req (void) {
mbedAustin 11:cada08fc8a70 219 /* Initiate a post service handling request if required. */
mbedAustin 11:cada08fc8a70 220 if (os_lock == __FALSE) {
mbedAustin 11:cada08fc8a70 221 OS_PEND_IRQ ();
mbedAustin 11:cada08fc8a70 222 }
mbedAustin 11:cada08fc8a70 223 else {
mbedAustin 11:cada08fc8a70 224 os_psh_flag = __TRUE;
mbedAustin 11:cada08fc8a70 225 }
mbedAustin 11:cada08fc8a70 226 }
mbedAustin 11:cada08fc8a70 227
mbedAustin 11:cada08fc8a70 228
mbedAustin 11:cada08fc8a70 229 /*--------------------------- rt_pop_req ------------------------------------*/
mbedAustin 11:cada08fc8a70 230
mbedAustin 11:cada08fc8a70 231 void rt_pop_req (void) {
mbedAustin 11:cada08fc8a70 232 /* Process an ISR post service requests. */
mbedAustin 11:cada08fc8a70 233 struct OS_XCB *p_CB;
mbedAustin 11:cada08fc8a70 234 P_TCB next;
mbedAustin 11:cada08fc8a70 235 U32 idx;
mbedAustin 11:cada08fc8a70 236
mbedAustin 11:cada08fc8a70 237 os_tsk.run->state = READY;
mbedAustin 11:cada08fc8a70 238 rt_put_rdy_first (os_tsk.run);
mbedAustin 11:cada08fc8a70 239
mbedAustin 11:cada08fc8a70 240 idx = os_psq->last;
mbedAustin 11:cada08fc8a70 241 while (os_psq->count) {
mbedAustin 11:cada08fc8a70 242 p_CB = os_psq->q[idx].id;
mbedAustin 11:cada08fc8a70 243 if (p_CB->cb_type == TCB) {
mbedAustin 11:cada08fc8a70 244 /* Is of TCB type */
mbedAustin 11:cada08fc8a70 245 rt_evt_psh ((P_TCB)p_CB, (U16)os_psq->q[idx].arg);
mbedAustin 11:cada08fc8a70 246 }
mbedAustin 11:cada08fc8a70 247 else if (p_CB->cb_type == MCB) {
mbedAustin 11:cada08fc8a70 248 /* Is of MCB type */
mbedAustin 11:cada08fc8a70 249 rt_mbx_psh ((P_MCB)p_CB, (void *)os_psq->q[idx].arg);
mbedAustin 11:cada08fc8a70 250 }
mbedAustin 11:cada08fc8a70 251 else {
mbedAustin 11:cada08fc8a70 252 /* Must be of SCB type */
mbedAustin 11:cada08fc8a70 253 rt_sem_psh ((P_SCB)p_CB);
mbedAustin 11:cada08fc8a70 254 }
mbedAustin 11:cada08fc8a70 255 if (++idx == os_psq->size) idx = 0;
mbedAustin 11:cada08fc8a70 256 rt_dec (&os_psq->count);
mbedAustin 11:cada08fc8a70 257 }
mbedAustin 11:cada08fc8a70 258 os_psq->last = idx;
mbedAustin 11:cada08fc8a70 259
mbedAustin 11:cada08fc8a70 260 next = rt_get_first (&os_rdy);
mbedAustin 11:cada08fc8a70 261 rt_switch_req (next);
mbedAustin 11:cada08fc8a70 262 }
mbedAustin 11:cada08fc8a70 263
mbedAustin 11:cada08fc8a70 264
mbedAustin 11:cada08fc8a70 265 /*--------------------------- os_tick_init ----------------------------------*/
mbedAustin 11:cada08fc8a70 266
mbedAustin 11:cada08fc8a70 267 __weak int os_tick_init (void) {
mbedAustin 11:cada08fc8a70 268 /* Initialize SysTick timer as system tick timer. */
mbedAustin 11:cada08fc8a70 269 rt_systick_init ();
mbedAustin 11:cada08fc8a70 270 return (-1); /* Return IRQ number of SysTick timer */
mbedAustin 11:cada08fc8a70 271 }
mbedAustin 11:cada08fc8a70 272
mbedAustin 11:cada08fc8a70 273 /*--------------------------- os_tick_val -----------------------------------*/
mbedAustin 11:cada08fc8a70 274
mbedAustin 11:cada08fc8a70 275 __weak U32 os_tick_val (void) {
mbedAustin 11:cada08fc8a70 276 /* Get SysTick timer current value (0 .. OS_TRV). */
mbedAustin 11:cada08fc8a70 277 return rt_systick_val();
mbedAustin 11:cada08fc8a70 278 }
mbedAustin 11:cada08fc8a70 279
mbedAustin 11:cada08fc8a70 280 /*--------------------------- os_tick_ovf -----------------------------------*/
mbedAustin 11:cada08fc8a70 281
mbedAustin 11:cada08fc8a70 282 __weak U32 os_tick_ovf (void) {
mbedAustin 11:cada08fc8a70 283 /* Get SysTick timer overflow flag */
mbedAustin 11:cada08fc8a70 284 return rt_systick_ovf();
mbedAustin 11:cada08fc8a70 285 }
mbedAustin 11:cada08fc8a70 286
mbedAustin 11:cada08fc8a70 287 /*--------------------------- os_tick_irqack --------------------------------*/
mbedAustin 11:cada08fc8a70 288
mbedAustin 11:cada08fc8a70 289 __weak void os_tick_irqack (void) {
mbedAustin 11:cada08fc8a70 290 /* Acknowledge timer interrupt. */
mbedAustin 11:cada08fc8a70 291 }
mbedAustin 11:cada08fc8a70 292
mbedAustin 11:cada08fc8a70 293
mbedAustin 11:cada08fc8a70 294 /*--------------------------- rt_systick ------------------------------------*/
mbedAustin 11:cada08fc8a70 295
mbedAustin 11:cada08fc8a70 296 extern void sysTimerTick(void);
mbedAustin 11:cada08fc8a70 297
mbedAustin 11:cada08fc8a70 298 void rt_systick (void) {
mbedAustin 11:cada08fc8a70 299 /* Check for system clock update, suspend running task. */
mbedAustin 11:cada08fc8a70 300 P_TCB next;
mbedAustin 11:cada08fc8a70 301
mbedAustin 11:cada08fc8a70 302 os_tsk.run->state = READY;
mbedAustin 11:cada08fc8a70 303 rt_put_rdy_first (os_tsk.run);
mbedAustin 11:cada08fc8a70 304
mbedAustin 11:cada08fc8a70 305 /* Check Round Robin timeout. */
mbedAustin 11:cada08fc8a70 306 rt_chk_robin ();
mbedAustin 11:cada08fc8a70 307
mbedAustin 11:cada08fc8a70 308 /* Update delays. */
mbedAustin 11:cada08fc8a70 309 os_time++;
mbedAustin 11:cada08fc8a70 310 rt_dec_dly ();
mbedAustin 11:cada08fc8a70 311
mbedAustin 11:cada08fc8a70 312 /* Check the user timers. */
mbedAustin 11:cada08fc8a70 313 #ifdef __CMSIS_RTOS
mbedAustin 11:cada08fc8a70 314 sysTimerTick();
mbedAustin 11:cada08fc8a70 315 #else
mbedAustin 11:cada08fc8a70 316 rt_tmr_tick ();
mbedAustin 11:cada08fc8a70 317 #endif
mbedAustin 11:cada08fc8a70 318
mbedAustin 11:cada08fc8a70 319 /* Switch back to highest ready task */
mbedAustin 11:cada08fc8a70 320 next = rt_get_first (&os_rdy);
mbedAustin 11:cada08fc8a70 321 rt_switch_req (next);
mbedAustin 11:cada08fc8a70 322 }
mbedAustin 11:cada08fc8a70 323
mbedAustin 11:cada08fc8a70 324 /*--------------------------- rt_stk_check ----------------------------------*/
mbedAustin 11:cada08fc8a70 325
mbedAustin 11:cada08fc8a70 326 __weak void rt_stk_check (void) {
mbedAustin 11:cada08fc8a70 327 /* Check for stack overflow. */
mbedAustin 11:cada08fc8a70 328 if ((os_tsk.run->tsk_stack < (U32)os_tsk.run->stack) ||
mbedAustin 11:cada08fc8a70 329 (os_tsk.run->stack[0] != MAGIC_WORD)) {
mbedAustin 11:cada08fc8a70 330 os_error (OS_ERR_STK_OVF);
mbedAustin 11:cada08fc8a70 331 }
mbedAustin 11:cada08fc8a70 332 }
mbedAustin 11:cada08fc8a70 333
mbedAustin 11:cada08fc8a70 334 /*----------------------------------------------------------------------------
mbedAustin 11:cada08fc8a70 335 * end of file
mbedAustin 11:cada08fc8a70 336 *---------------------------------------------------------------------------*/
mbedAustin 11:cada08fc8a70 337