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Nut/OS
4.10.3
API Reference
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Nut/OS
4.10.3
API Reference
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Defines | |
| #define | NUT_TICK_FREQ 1000UL |
Functions | |
| void | NutRegisterTimer (void(*handler)(void *)) |
| Initialize system timer. | |
| uint32_t | NutArchClockGet (int idx) |
| Return the CPU clock in Hertz. | |
| uint32_t | NutGetTickClock (void) |
| Return the number of system ticks per second. | |
| uint32_t | NutTimerMillisToTicks (uint32_t ms) |
| Calculate system ticks for a given number of milliseconds. | |
Variables | |
| IRQ_HANDLER | sig_sysCompare |
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All rights reserved.
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For additional information see http://www.ethernut.de/
| #define NUT_TICK_FREQ 1000UL |
Definition at line 58 of file ostimer.c.
Referenced by NutGetTickClock(), NutRegisterTimer(), and NutTimerMillisToTicks().
| void NutRegisterTimer | ( | void(*)(void *) | handler | ) |
Initialize system timer.
This function is automatically called by Nut/OS during system initialization.
Nut/OS uses on-chip tick counter 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.
Definition at line 180 of file ostimer.c.
References Get_system_register, IRQ_HANDLER::ir_handler, NUT_TICK_FREQ, NutGetCpuClock(), register_interrupt(), and Set_system_register.
Referenced by NutTimerInit().
| uint32_t NutArchClockGet | ( | int | idx | ) |
Return the CPU clock in Hertz.
On AVR32 CPUs the processor clock may differ from the clock driving the peripherals. In this case NutArchClockGet() will provide the correct clock depending on it's argument.
Definition at line 199 of file ostimer.c.
References _BV, NUT_HWCLK_CPU, NUT_HWCLK_PERIPHERAL_A, NUT_HWCLK_PERIPHERAL_B, NUT_HWCLK_PERIPHERAL_HSB, and NUT_HWCLK_SLOW_CLOCK.
Referenced by Avr32WatchDogStart(), and NutGetCpuClock().
| uint32_t NutGetTickClock | ( | void | ) |
Return the number of system ticks per second.
Definition at line 240 of file ostimer.c.
References NUT_TICK_FREQ.
Referenced by NutGetMillis(), NutGetSeconds(), and NutTimerMillisToTicks().
Calculate system ticks for a given number of milliseconds.
Definition at line 248 of file ostimer.c.
References NUT_TICK_FREQ.
Referenced by NutTimerStart().