BeRTOS
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Low-level timer module for AVR MEGA (interface). More...
#include <hw/hw_cpufreq.h>
#include "cfg/cfg_timer.h"
#include <cfg/compiler.h>
#include <cfg/macros.h>
#include <avr/io.h>
#include <avr/interrupt.h>
Go to the source code of this file.
Values for CONFIG_TIMER. | |
Select which hardware timer interrupt to use for system clock and softtimers.
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#define | TIMER_ON_OUTPUT_COMPARE0 1 |
Default system timer. | |
#define | TIMER_ON_OVERFLOW1 2 |
Default system timer. | |
#define | TIMER_ON_OUTPUT_COMPARE2 3 |
Default system timer. | |
#define | TIMER_ON_OVERFLOW3 4 |
Default system timer. | |
#define | TIMER_DEFAULT TIMER_ON_OUTPUT_COMPARE0 |
Default system timer. | |
#define | TIMER_HW_HPTICKS_PER_SEC DIV_ROUND(CPU_FREQ, TIMER_PRESCALER) |
Frequency of the hardware high precision timer. | |
#define | OCR_DIVISOR (DIV_ROUND(DIV_ROUND(CPU_FREQ, TIMER_PRESCALER), TIMER_TICKS_PER_SEC) - 1) |
System timer: additional division after the prescaler 12288000 / 64 / 192 (0..191) = 1 ms. | |
#define | timer_hw_irq() do {} while (0) |
Not needed, IRQ timer flag cleared automatically. | |
#define | timer_hw_triggered() (true) |
Not needed, timer IRQ handler called only for timer source. | |
void | timer_hw_init (void) |
HW dependent timer initialization. |
Low-level timer module for AVR MEGA (interface).
Definition in file timer_mega.h.
#define TIMER_HW_HPTICKS_PER_SEC DIV_ROUND(CPU_FREQ, TIMER_PRESCALER) |
Frequency of the hardware high precision timer.
Definition at line 157 of file timer_mega.h.