keyboards/at_at/660m/chconf.h

   1 /*
   2     ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
   3
   4     Licensed under the Apache License, Version 2.0 (the "License");
   5     you may not use this file except in compliance with the License.
   6     You may obtain a copy of the License at
   7
   8         http://www.apache.org/licenses/LICENSE-2.0
   9
  10     Unless required by applicable law or agreed to in writing, software
  11     distributed under the License is distributed on an "AS IS" BASIS,
  12     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13     See the License for the specific language governing permissions and
  14     limitations under the License.
  15 */
  16
  17 /**
  18  * @file    rt/templates/chconf.h
  19  * @brief   Configuration file template.
  20  * @details A copy of this file must be placed in each project directory, it
  21  *          contains the application specific kernel settings.
  22  *
  23  * @addtogroup config
  24  * @details Kernel related settings and hooks.
  25  * @{
  26  */
  27
  28 #ifndef CHCONF_H
  29 #define CHCONF_H
  30
  31 #define _CHIBIOS_RT_CONF_
  32 #define _CHIBIOS_RT_CONF_VER_6_0_
  33
  34 /*===========================================================================*/
  35 /**
  36  * @name System timers settings
  37  * @{
  38  */
  39 /*===========================================================================*/
  40
  41 /**
  42  * @brief   System time counter resolution.
  43  * @note    Allowed values are 16 or 32 bits.
  44  */
  45 #if !defined(CH_CFG_ST_RESOLUTION)
  46 #define CH_CFG_ST_RESOLUTION                32
  47 #endif
  48
  49 /**
  50  * @brief   System tick frequency.
  51  * @details Frequency of the system timer that drives the system ticks. This
  52  *          setting also defines the system tick time unit.
  53  */
  54 #if !defined(CH_CFG_ST_FREQUENCY)
  55 #define CH_CFG_ST_FREQUENCY                 10000
  56 #endif
  57
  58 /**
  59  * @brief   Time intervals data size.
  60  * @note    Allowed values are 16, 32 or 64 bits.
  61  */
  62 #if !defined(CH_CFG_INTERVALS_SIZE)
  63 #define CH_CFG_INTERVALS_SIZE               32
  64 #endif
  65
  66 /**
  67  * @brief   Time types data size.
  68  * @note    Allowed values are 16 or 32 bits.
  69  */
  70 #if !defined(CH_CFG_TIME_TYPES_SIZE)
  71 #define CH_CFG_TIME_TYPES_SIZE              32
  72 #endif
  73
  74 /**
  75  * @brief   Time delta constant for the tick-less mode.
  76  * @note    If this value is zero then the system uses the classic
  77  *          periodic tick. This value represents the minimum number
  78  *          of ticks that is safe to specify in a timeout directive.
  79  *          The value one is not valid, timeouts are rounded up to
  80  *          this value.
  81  */
  82 #if !defined(CH_CFG_ST_TIMEDELTA)
  83 #define CH_CFG_ST_TIMEDELTA                 2
  84 #endif
  85
  86 /** @} */
  87
  88 /*===========================================================================*/
  89 /**
  90  * @name Kernel parameters and options
  91  * @{
  92  */
  93 /*===========================================================================*/
  94
  95 /**
  96  * @brief   Round robin interval.
  97  * @details This constant is the number of system ticks allowed for the
  98  *          threads before preemption occurs. Setting this value to zero
  99  *          disables the preemption for threads with equal priority and the
 100  *          round robin becomes cooperative. Note that higher priority
 101  *          threads can still preempt, the kernel is always preemptive.
 102  * @note    Disabling the round robin preemption makes the kernel more compact
 103  *          and generally faster.
 104  * @note    The round robin preemption is not supported in tickless mode and
 105  *          must be set to zero in that case.
 106  */
 107 #if !defined(CH_CFG_TIME_QUANTUM)
 108 #define CH_CFG_TIME_QUANTUM                 0
 109 #endif
 110
 111 /**
 112  * @brief   Managed RAM size.
 113  * @details Size of the RAM area to be managed by the OS. If set to zero
 114  *          then the whole available RAM is used. The core memory is made
 115  *          available to the heap allocator and/or can be used directly through
 116  *          the simplified core memory allocator.
 117  *
 118  * @note    In order to let the OS manage the whole RAM the linker script must
 119  *          provide the @p __heap_base__ and @p __heap_end__ symbols.
 120  * @note    Requires @p CH_CFG_USE_MEMCORE.
 121  */
 122 #if !defined(CH_CFG_MEMCORE_SIZE)
 123 #define CH_CFG_MEMCORE_SIZE                 0
 124 #endif
 125
 126 /**
 127  * @brief   Idle thread automatic spawn suppression.
 128  * @details When this option is activated the function @p chSysInit()
 129  *          does not spawn the idle thread. The application @p main()
 130  *          function becomes the idle thread and must implement an
 131  *          infinite loop.
 132  */
 133 #if !defined(CH_CFG_NO_IDLE_THREAD)
 134 #define CH_CFG_NO_IDLE_THREAD               FALSE
 135 #endif
 136
 137 /** @} */
 138
 139 /*===========================================================================*/
 140 /**
 141  * @name Performance options
 142  * @{
 143  */
 144 /*===========================================================================*/
 145
 146 /**
 147  * @brief   OS optimization.
 148  * @details If enabled then time efficient rather than space efficient code
 149  *          is used when two possible implementations exist.
 150  *
 151  * @note    This is not related to the compiler optimization options.
 152  * @note    The default is @p TRUE.
 153  */
 154 #if !defined(CH_CFG_OPTIMIZE_SPEED)
 155 #define CH_CFG_OPTIMIZE_SPEED               FALSE
 156 #endif
 157
 158 /** @} */
 159
 160 /*===========================================================================*/
 161 /**
 162  * @name Subsystem options
 163  * @{
 164  */
 165 /*===========================================================================*/
 166
 167 /**
 168  * @brief   Time Measurement APIs.
 169  * @details If enabled then the time measurement APIs are included in
 170  *          the kernel.
 171  *
 172  * @note    The default is @p TRUE.
 173  */
 174 #if !defined(CH_CFG_USE_TM)
 175 #define CH_CFG_USE_TM                       FALSE
 176 #endif
 177
 178 /**
 179  * @brief   Threads registry APIs.
 180  * @details If enabled then the registry APIs are included in the kernel.
 181  *
 182  * @note    The default is @p TRUE.
 183  */
 184 #if !defined(CH_CFG_USE_REGISTRY)
 185 #define CH_CFG_USE_REGISTRY                 TRUE
 186 #endif
 187
 188 /**
 189  * @brief   Threads synchronization APIs.
 190  * @details If enabled then the @p chThdWait() function is included in
 191  *          the kernel.
 192  *
 193  * @note    The default is @p TRUE.
 194  */
 195 #if !defined(CH_CFG_USE_WAITEXIT)
 196 #define CH_CFG_USE_WAITEXIT                 TRUE
 197 #endif
 198
 199 /**
 200  * @brief   Semaphores APIs.
 201  * @details If enabled then the Semaphores APIs are included in the kernel.
 202  *
 203  * @note    The default is @p TRUE.
 204  */
 205 #if !defined(CH_CFG_USE_SEMAPHORES)
 206 #define CH_CFG_USE_SEMAPHORES               TRUE
 207 #endif
 208
 209 /**
 210  * @brief   Semaphores queuing mode.
 211  * @details If enabled then the threads are enqueued on semaphores by
 212  *          priority rather than in FIFO order.
 213  *
 214  * @note    The default is @p FALSE. Enable this if you have special
 215  *          requirements.
 216  * @note    Requires @p CH_CFG_USE_SEMAPHORES.
 217  */
 218 #if !defined(CH_CFG_USE_SEMAPHORES_PRIORITY)
 219 #define CH_CFG_USE_SEMAPHORES_PRIORITY      FALSE
 220 #endif
 221
 222 /**
 223  * @brief   Mutexes APIs.
 224  * @details If enabled then the mutexes APIs are included in the kernel.
 225  *
 226  * @note    The default is @p TRUE.
 227  */
 228 #if !defined(CH_CFG_USE_MUTEXES)
 229 #define CH_CFG_USE_MUTEXES                  TRUE
 230 #endif
 231
 232 /**
 233  * @brief   Enables recursive behavior on mutexes.
 234  * @note    Recursive mutexes are heavier and have an increased
 235  *          memory footprint.
 236  *
 237  * @note    The default is @p FALSE.
 238  * @note    Requires @p CH_CFG_USE_MUTEXES.
 239  */
 240 #if !defined(CH_CFG_USE_MUTEXES_RECURSIVE)
 241 #define CH_CFG_USE_MUTEXES_RECURSIVE        FALSE
 242 #endif
 243
 244 /**
 245  * @brief   Conditional Variables APIs.
 246  * @details If enabled then the conditional variables APIs are included
 247  *          in the kernel.
 248  *
 249  * @note    The default is @p TRUE.
 250  * @note    Requires @p CH_CFG_USE_MUTEXES.
 251  */
 252 #if !defined(CH_CFG_USE_CONDVARS)
 253 #define CH_CFG_USE_CONDVARS                 TRUE
 254 #endif
 255
 256 /**
 257  * @brief   Conditional Variables APIs with timeout.
 258  * @details If enabled then the conditional variables APIs with timeout
 259  *          specification are included in the kernel.
 260  *
 261  * @note    The default is @p TRUE.
 262  * @note    Requires @p CH_CFG_USE_CONDVARS.
 263  */
 264 #if !defined(CH_CFG_USE_CONDVARS_TIMEOUT)
 265 #define CH_CFG_USE_CONDVARS_TIMEOUT         FALSE
 266 #endif
 267
 268 /**
 269  * @brief   Events Flags APIs.
 270  * @details If enabled then the event flags APIs are included in the kernel.
 271  *
 272  * @note    The default is @p TRUE.
 273  */
 274 #if !defined(CH_CFG_USE_EVENTS)
 275 #define CH_CFG_USE_EVENTS                   TRUE
 276 #endif
 277
 278 /**
 279  * @brief   Events Flags APIs with timeout.
 280  * @details If enabled then the events APIs with timeout specification
 281  *          are included in the kernel.
 282  *
 283  * @note    The default is @p TRUE.
 284  * @note    Requires @p CH_CFG_USE_EVENTS.
 285  */
 286 #if !defined(CH_CFG_USE_EVENTS_TIMEOUT)
 287 #define CH_CFG_USE_EVENTS_TIMEOUT           TRUE
 288 #endif
 289
 290 /**
 291  * @brief   Synchronous Messages APIs.
 292  * @details If enabled then the synchronous messages APIs are included
 293  *          in the kernel.
 294  *
 295  * @note    The default is @p TRUE.
 296  */
 297 #if !defined(CH_CFG_USE_MESSAGES)
 298 #define CH_CFG_USE_MESSAGES                 TRUE
 299 #endif
 300
 301 /**
 302  * @brief   Synchronous Messages queuing mode.
 303  * @details If enabled then messages are served by priority rather than in
 304  *          FIFO order.
 305  *
 306  * @note    The default is @p FALSE. Enable this if you have special
 307  *          requirements.
 308  * @note    Requires @p CH_CFG_USE_MESSAGES.
 309  */
 310 #if !defined(CH_CFG_USE_MESSAGES_PRIORITY)
 311 #define CH_CFG_USE_MESSAGES_PRIORITY        FALSE
 312 #endif
 313
 314 /**
 315  * @brief   Mailboxes APIs.
 316  * @details If enabled then the asynchronous messages (mailboxes) APIs are
 317  *          included in the kernel.
 318  *
 319  * @note    The default is @p TRUE.
 320  * @note    Requires @p CH_CFG_USE_SEMAPHORES.
 321  */
 322 #if !defined(CH_CFG_USE_MAILBOXES)
 323 #define CH_CFG_USE_MAILBOXES                TRUE
 324 #endif
 325
 326 /**
 327  * @brief   Core Memory Manager APIs.
 328  * @details If enabled then the core memory manager APIs are included
 329  *          in the kernel.
 330  *
 331  * @note    The default is @p TRUE.
 332  */
 333 #if !defined(CH_CFG_USE_MEMCORE)
 334 #define CH_CFG_USE_MEMCORE                  FALSE
 335 #endif
 336
 337 /**
 338  * @brief   Heap Allocator APIs.
 339  * @details If enabled then the memory heap allocator APIs are included
 340  *          in the kernel.
 341  *
 342  * @note    The default is @p TRUE.
 343  * @note    Requires @p CH_CFG_USE_MEMCORE and either @p CH_CFG_USE_MUTEXES or
 344  *          @p CH_CFG_USE_SEMAPHORES.
 345  * @note    Mutexes are recommended.
 346  */
 347 #if !defined(CH_CFG_USE_HEAP)
 348 #define CH_CFG_USE_HEAP                     FALSE
 349 #endif
 350
 351 /**
 352  * @brief   Memory Pools Allocator APIs.
 353  * @details If enabled then the memory pools allocator APIs are included
 354  *          in the kernel.
 355  *
 356  * @note    The default is @p TRUE.
 357  */
 358 #if !defined(CH_CFG_USE_MEMPOOLS)
 359 #define CH_CFG_USE_MEMPOOLS                 FALSE
 360 #endif
 361
 362 /**
 363  * @brief   Objects FIFOs APIs.
 364  * @details If enabled then the objects FIFOs APIs are included
 365  *          in the kernel.
 366  *
 367  * @note    The default is @p TRUE.
 368  */
 369 #if !defined(CH_CFG_USE_OBJ_FIFOS)
 370 #define CH_CFG_USE_OBJ_FIFOS                FALSE
 371 #endif
 372
 373 /**
 374  * @brief   Pipes APIs.
 375  * @details If enabled then the pipes APIs are included
 376  *          in the kernel.
 377  *
 378  * @note    The default is @p TRUE.
 379  */
 380 #if !defined(CH_CFG_USE_PIPES)
 381 #define CH_CFG_USE_PIPES                    FALSE
 382 #endif
 383
 384 /**
 385  * @brief   Dynamic Threads APIs.
 386  * @details If enabled then the dynamic threads creation APIs are included
 387  *          in the kernel.
 388  *
 389  * @note    The default is @p TRUE.
 390  * @note    Requires @p CH_CFG_USE_WAITEXIT.
 391  * @note    Requires @p CH_CFG_USE_HEAP and/or @p CH_CFG_USE_MEMPOOLS.
 392  */
 393 #if !defined(CH_CFG_USE_DYNAMIC)
 394 #define CH_CFG_USE_DYNAMIC                  FALSE
 395 #endif
 396
 397 /** @} */
 398
 399 /*===========================================================================*/
 400 /**
 401  * @name Objects factory options
 402  * @{
 403  */
 404 /*===========================================================================*/
 405
 406 /**
 407  * @brief   Objects Factory APIs.
 408  * @details If enabled then the objects factory APIs are included in the
 409  *          kernel.
 410  *
 411  * @note    The default is @p FALSE.
 412  */
 413 #if !defined(CH_CFG_USE_FACTORY)
 414 #define CH_CFG_USE_FACTORY                  FALSE
 415 #endif
 416
 417 /**
 418  * @brief   Maximum length for object names.
 419  * @details If the specified length is zero then the name is stored by
 420  *          pointer but this could have unintended side effects.
 421  */
 422 #if !defined(CH_CFG_FACTORY_MAX_NAMES_LENGTH)
 423 #define CH_CFG_FACTORY_MAX_NAMES_LENGTH     8
 424 #endif
 425
 426 /**
 427  * @brief   Enables the registry of generic objects.
 428  */
 429 #if !defined(CH_CFG_FACTORY_OBJECTS_REGISTRY)
 430 #define CH_CFG_FACTORY_OBJECTS_REGISTRY     FALSE
 431 #endif
 432
 433 /**
 434  * @brief   Enables factory for generic buffers.
 435  */
 436 #if !defined(CH_CFG_FACTORY_GENERIC_BUFFERS)
 437 #define CH_CFG_FACTORY_GENERIC_BUFFERS      FALSE
 438 #endif
 439
 440 /**
 441  * @brief   Enables factory for semaphores.
 442  */
 443 #if !defined(CH_CFG_FACTORY_SEMAPHORES)
 444 #define CH_CFG_FACTORY_SEMAPHORES           FALSE
 445 #endif
 446
 447 /**
 448  * @brief   Enables factory for mailboxes.
 449  */
 450 #if !defined(CH_CFG_FACTORY_MAILBOXES)
 451 #define CH_CFG_FACTORY_MAILBOXES            FALSE
 452 #endif
 453
 454 /**
 455  * @brief   Enables factory for objects FIFOs.
 456  */
 457 #if !defined(CH_CFG_FACTORY_OBJ_FIFOS)
 458 #define CH_CFG_FACTORY_OBJ_FIFOS            FALSE
 459 #endif
 460
 461 /**
 462  * @brief   Enables factory for Pipes.
 463  */
 464 #if !defined(CH_CFG_FACTORY_PIPES) || defined(__DOXYGEN__)
 465 #define CH_CFG_FACTORY_PIPES                FALSE
 466 #endif
 467
 468 /** @} */
 469
 470 /*===========================================================================*/
 471 /**
 472  * @name Debug options
 473  * @{
 474  */
 475 /*===========================================================================*/
 476
 477 /**
 478  * @brief   Debug option, kernel statistics.
 479  *
 480  * @note    The default is @p FALSE.
 481  */
 482 #if !defined(CH_DBG_STATISTICS)
 483 #define CH_DBG_STATISTICS                   FALSE
 484 #endif
 485
 486 /**
 487  * @brief   Debug option, system state check.
 488  * @details If enabled the correct call protocol for system APIs is checked
 489  *          at runtime.
 490  *
 491  * @note    The default is @p FALSE.
 492  */
 493 #if !defined(CH_DBG_SYSTEM_STATE_CHECK)
 494 #define CH_DBG_SYSTEM_STATE_CHECK           FALSE
 495 #endif
 496
 497 /**
 498  * @brief   Debug option, parameters checks.
 499  * @details If enabled then the checks on the API functions input
 500  *          parameters are activated.
 501  *
 502  * @note    The default is @p FALSE.
 503  */
 504 #if !defined(CH_DBG_ENABLE_CHECKS)
 505 #define CH_DBG_ENABLE_CHECKS                FALSE
 506 #endif
 507
 508 /**
 509  * @brief   Debug option, consistency checks.
 510  * @details If enabled then all the assertions in the kernel code are
 511  *          activated. This includes consistency checks inside the kernel,
 512  *          runtime anomalies and port-defined checks.
 513  *
 514  * @note    The default is @p FALSE.
 515  */
 516 #if !defined(CH_DBG_ENABLE_ASSERTS)
 517 #define CH_DBG_ENABLE_ASSERTS               FALSE
 518 #endif
 519
 520 /**
 521  * @brief   Debug option, trace buffer.
 522  * @details If enabled then the trace buffer is activated.
 523  *
 524  * @note    The default is @p CH_DBG_TRACE_MASK_DISABLED.
 525  */
 526 #if !defined(CH_DBG_TRACE_MASK)
 527 #define CH_DBG_TRACE_MASK                   CH_DBG_TRACE_MASK_DISABLED
 528 #endif
 529
 530 /**
 531  * @brief   Trace buffer entries.
 532  * @note    The trace buffer is only allocated if @p CH_DBG_TRACE_MASK is
 533  *          different from @p CH_DBG_TRACE_MASK_DISABLED.
 534  */
 535 #if !defined(CH_DBG_TRACE_BUFFER_SIZE)
 536 #define CH_DBG_TRACE_BUFFER_SIZE            128
 537 #endif
 538
 539 /**
 540  * @brief   Debug option, stack checks.
 541  * @details If enabled then a runtime stack check is performed.
 542  *
 543  * @note    The default is @p FALSE.
 544  * @note    The stack check is performed in a architecture/port dependent way.
 545  *          It may not be implemented or some ports.
 546  * @note    The default failure mode is to halt the system with the global
 547  *          @p panic_msg variable set to @p NULL.
 548  */
 549 #if !defined(CH_DBG_ENABLE_STACK_CHECK)
 550 #define CH_DBG_ENABLE_STACK_CHECK           FALSE
 551 #endif
 552
 553 /**
 554  * @brief   Debug option, stacks initialization.
 555  * @details If enabled then the threads working area is filled with a byte
 556  *          value when a thread is created. This can be useful for the
 557  *          runtime measurement of the used stack.
 558  *
 559  * @note    The default is @p FALSE.
 560  */
 561 #if !defined(CH_DBG_FILL_THREADS)
 562 #define CH_DBG_FILL_THREADS                 FALSE
 563 #endif
 564
 565 /**
 566  * @brief   Debug option, threads profiling.
 567  * @details If enabled then a field is added to the @p thread_t structure that
 568  *          counts the system ticks occurred while executing the thread.
 569  *
 570  * @note    The default is @p FALSE.
 571  * @note    This debug option is not currently compatible with the
 572  *          tickless mode.
 573  */
 574 #if !defined(CH_DBG_THREADS_PROFILING)
 575 #define CH_DBG_THREADS_PROFILING            FALSE
 576 #endif
 577
 578 /** @} */
 579
 580 /*===========================================================================*/
 581 /**
 582  * @name Kernel hooks
 583  * @{
 584  */
 585 /*===========================================================================*/
 586
 587 /**
 588  * @brief   System structure extension.
 589  * @details User fields added to the end of the @p ch_system_t structure.
 590  */
 591 #define CH_CFG_SYSTEM_EXTRA_FIELDS                                          \
 592   /* Add threads custom fields here.*/
 593
 594 /**
 595  * @brief   System initialization hook.
 596  * @details User initialization code added to the @p chSysInit() function
 597  *          just before interrupts are enabled globally.
 598  */
 599 #define CH_CFG_SYSTEM_INIT_HOOK() {                                         \
 600   /* Add threads initialization code here.*/                                \
 601 }
 602
 603 /**
 604  * @brief   Threads descriptor structure extension.
 605  * @details User fields added to the end of the @p thread_t structure.
 606  */
 607 #define CH_CFG_THREAD_EXTRA_FIELDS                                          \
 608   /* Add threads custom fields here.*/
 609
 610 /**
 611  * @brief   Threads initialization hook.
 612  * @details User initialization code added to the @p _thread_init() function.
 613  *
 614  * @note    It is invoked from within @p _thread_init() and implicitly from all
 615  *          the threads creation APIs.
 616  */
 617 #define CH_CFG_THREAD_INIT_HOOK(tp) {                                       \
 618   /* Add threads initialization code here.*/                                \
 619 }
 620
 621 /**
 622  * @brief   Threads finalization hook.
 623  * @details User finalization code added to the @p chThdExit() API.
 624  */
 625 #define CH_CFG_THREAD_EXIT_HOOK(tp) {                                       \
 626   /* Add threads finalization code here.*/                                  \
 627 }
 628
 629 /**
 630  * @brief   Context switch hook.
 631  * @details This hook is invoked just before switching between threads.
 632  */
 633 #define CH_CFG_CONTEXT_SWITCH_HOOK(ntp, otp) {                              \
 634   /* Context switch code here.*/                                            \
 635 }
 636
 637 /**
 638  * @brief   ISR enter hook.
 639  */
 640 #define CH_CFG_IRQ_PROLOGUE_HOOK() {                                        \
 641   /* IRQ prologue code here.*/                                              \
 642 }
 643
 644 /**
 645  * @brief   ISR exit hook.
 646  */
 647 #define CH_CFG_IRQ_EPILOGUE_HOOK() {                                        \
 648   /* IRQ epilogue code here.*/                                              \
 649 }
 650
 651 /**
 652  * @brief   Idle thread enter hook.
 653  * @note    This hook is invoked within a critical zone, no OS functions
 654  *          should be invoked from here.
 655  * @note    This macro can be used to activate a power saving mode.
 656  */
 657 #define CH_CFG_IDLE_ENTER_HOOK() {                                          \
 658   /* Idle-enter code here.*/                                                \
 659 }
 660
 661 /**
 662  * @brief   Idle thread leave hook.
 663  * @note    This hook is invoked within a critical zone, no OS functions
 664  *          should be invoked from here.
 665  * @note    This macro can be used to deactivate a power saving mode.
 666  */
 667 #define CH_CFG_IDLE_LEAVE_HOOK() {                                          \
 668   /* Idle-leave code here.*/                                                \
 669 }
 670
 671 /**
 672  * @brief   Idle Loop hook.
 673  * @details This hook is continuously invoked by the idle thread loop.
 674  */
 675 #define CH_CFG_IDLE_LOOP_HOOK() {                                           \
 676   /* Idle loop code here.*/                                                 \
 677 }
 678
 679 /**
 680  * @brief   System tick event hook.
 681  * @details This hook is invoked in the system tick handler immediately
 682  *          after processing the virtual timers queue.
 683  */
 684 #define CH_CFG_SYSTEM_TICK_HOOK() {                                         \
 685   /* System tick event code here.*/                                         \
 686 }
 687
 688 /**
 689  * @brief   System halt hook.
 690  * @details This hook is invoked in case to a system halting error before
 691  *          the system is halted.
 692  */
 693 #define CH_CFG_SYSTEM_HALT_HOOK(reason) {                                   \
 694   /* System halt code here.*/                                               \
 695 }
 696
 697 /**
 698  * @brief   Trace hook.
 699  * @details This hook is invoked each time a new record is written in the
 700  *          trace buffer.
 701  */
 702 #define CH_CFG_TRACE_HOOK(tep) {                                            \
 703   /* Trace code here.*/                                                     \
 704 }
 705
 706 /** @} */
 707
 708 /*===========================================================================*/
 709 /* Port-specific settings (override port settings defaulted in chcore.h).    */
 710 /*===========================================================================*/
 711
 712 #endif  /* CHCONF_H */
 713
 714 /** @} */