Renesas M3T-MR100 Uživatelský manuál Strana 115
- Strana / 304
- Tabulka s obsahem
- KNIHY
Hodnocené. / 5. Na základě hodnocení zákazníků
- 101 -
sig_sem Release semaphore resource
isig_sem Release semaphore resource (handler only)
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ER ercd = sig_sem( ID semid );
ER ercd = isig_sem( ID semid );
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ID semid Semaphore ID number to which returned
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ER ercd Terminated normally (E_OK) or error code
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.include mr100.inc
sig_sem SEMID
isig_sem SEMID
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SEMID Semaphore ID number to which returned
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Register name Content after service call is issued
R0 Error code
R2 Semaphore ID number to which returned
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E_QOVR Queuing overflow
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This service call releases one resource to the semaphore indicated by semid.
If tasks are enqueued in a waiting queue for the target semaphore, the task at the top of the queue is placed into READY
state. Conversely, if no tasks are enqueued in that waiting queue, the semaphore resource count is incremented by 1. If an
attempt is made to return resources (sig_sem or isig_sem service call) causing the semaphore resource count value to ex-
ceed the maximum value specified in a configuration file (maxsem), the error code E_QOVR is returned to the service call
issuing task, with the semaphore count value left intact.
If this service call is to be issued from task context, use sig_sem; if issued from non-task context, use isig_sem.
- M3T-MR100/4 V.1.00 1
- • Release Note 3
- • Users Manual (PDF file) 3
- Contents 5
- List of Figures 10
- List of Tables 13
- 2. General Information 17
- 2.3 MR100 Features 20
- 3. Introduction to Kernel 21
- Key input 23
- Monitor 24
- Register 26
- Memory map 26
- Register stored 27
- Register not stored 27
- 3.2 Service Call 28
- 3.3 Object 34
- 3.4 Task 35
- DORMANT 36
- SUSPENDED 36
- Priority 39
- Called the task context 41
- 3.5 System States 42
- 1. Interrupt Handler 42
- 2. Cyclic Handler 42
- 3. Alarm Handler 42
- 0 1 2 3 4 5 6 7 45
- 3.7 Stacks 48
- • User Stack 48
- • System Stack 48
- 4. Kernel 49
- 4.1.2 Module Overview 50
- Startup request count > 0 51
- 0 0 1 2 1 53
- Number of 54
- • Delay task (dly_tsk) 56
- Returned after use 57
- WAIT state 58
- Data Data 61
- Message Message 62
- Message 63
- • Processing speed 66
- • Memory usage efficiency 66
- • Ease of configuration 66
- • Set System Time (set_tim) 69
- Move the end of the queue 72
- Save Registers 73
- Task Selection 73
- 5. Service call reffernce 77
- No. Item Content 98
- - 102 116
- - 105 119
- - 107 121
- - 110 124
- - 112 126
- - 115 129
- - 117 131
- - 121 135
- - 124 138
- - 126 140
- - 132 146
- - 134 148
- - 138 152
- - 140 154
- (handler only) 155
- - 142 156
- - 147 161
- - 149 163
- - 152 166
- - 154 168
- - 158 172
- - 161 175
- - 164 178
- - 167 181
- - 173 187
- - 176 190
- - 190 204
- - 193 207
- - 198 212
- - 200 214
- - 202 216
- Overview 219
- - 206 220
- Figure 6.2 Program Example 222
- 6.2.4 System generation 223
- 6.2.5 Writing ROM 224
- 7. Detailed Applications 225
- - 214 228
- 7.2.1 Writing Task 229
- - 217 231
- For examples: 231
- - 219 233
- - 220 234
- - 221 235
- - 222 236
- 7.4 Memory Allocation 238
- • asm_sec.inc 238
- • c_sec.inc 238
- 8. Using Configurator 241
- Symbol 242
- MPU clock 245
- ID No 251
- ID name 251
- Number of data queues 252
- Select message queue 254
- Maximum message priority 254
- ID Name 256
- Section name 256
- Message buffer size 256
- Maximum message size 256
- Start address 259
- Extended information 259
- Vector No 260
- 8.2.1 Configurator Overview 268
- Configuration file name 270
- Error messages 271
- Warning messages 273
- 9.2 Program Source Listing 275
- 9.3 Configuration File 276
- XXX_XXX() 278
- System Stack 279
- Stack Section 279
- Sections used in MR100 280
- User stack size = 280
- Stack growing direction 281
- Σβi( γ) 282
- The necessary system stack 283
- Interrupt 283
- = register to be used 285
- 10.2 Necessary Stack Size 286
- 11. Note 289
- 17. Precautions 290
- 12. Appendix 293
- - 283 297
- - 284 298
- - 285 299
- - 288 302
- M3T-MR100/4 304
- User's Manual 304
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