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include/sys/timer.h File Reference
Detailed Description
Timer management definitions.
Defines | |
| #define | TM_ONESHOT |
Typedefs | |
| typedef _NUTTIMERINFO | NUTTIMERINFO |
| Timer type. | |
Functions | |
| void | NutTimerInit (void) |
| Timer 0 interrupt entry. Initialize system timer. | |
| HANDLE | NutTimerStart (u_long ms, void(*callback)(HANDLE, void *), void *arg, u_char flags) |
| HANDLE | NutTimerStartTicks (u_long ticks, void(*callback)(HANDLE, void *), void *arg, u_char flags) |
| u_long | NutTimerMillisToTicks (u_long ms) |
| Create an asynchronous timer. | |
| void | NutTimerStop (HANDLE handle) |
| Stop a specified timer. | |
| void | NutTimerStopAsync (HANDLE handle) |
| Asynchronously stop a specified timer. | |
| void | NutSleep (u_long ms) |
| Temporarily suspends the current thread. | |
| void | NutDelay (u_char ms) |
| Loop for a specified number of milliseconds. | |
| u_long | NutGetCpuClock (void) |
| Return the CPU clock in Hertz. | |
| u_long | NutGetTickCount (void) |
| Return the number of timer ticks. | |
| u_long | NutGetSeconds (void) |
| Return the seconds counter value. | |
| u_long | NutGetMillis (void) |
| Return the milliseconds counter value. | |
Variables | |
| NUTTIMERINFO *volatile | nutTimerList |
| Linked list of all system timers. | |
| NUTTIMERINFO *volatile | nutTimerPool |
Function Documentation
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Loop for a specified number of milliseconds. This call will not release the CPU and will not switch to another thread. However, because of absent thread switching, this delay time is very exact. Use NutSleep() to avoid blocking the CPU, if no exact timing is needed.
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Timer 0 interrupt entry. Initialize system timer. This function is automatically called by Nut/OS during system initialization. Nut/OS uses on-chip timer 0 for its timer services. Applications should not modify any registers of this timer, but make use of the Nut/OS timer API. Timer 1 and timer 2 are available to applications. |