systick.c File Reference

#include <systick.h>
#include <hal.h>
#include <timer.h>
#include "usart.h"
#include <string.h>

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Macros
#define	MAX_SYSTICK_HANDLERS   4
#define	NVIC_CCR   (*(volatile uint32_t *)0xE000ED14)

Functions
void	systick_attach_callback (Handler callback)
	Attach a callback to be called from the SysTick exception handler. More...
void	systick_detach_callback (Handler callback)
void	systick_init (uint32_t reload_val)
	Initialize and enable SysTick. More...
void	SysTick_Handler (void)
void	__attribute__ ((noreturn))
void	__go_next_task ()
void	hal_try_kill_task_or_reboot (uint8_t num)
void	hal_stop_multitask ()
void	hal_go_next_task ()

Variables
volatile uint64_t systick_uptime_millis	IN_CCM
static uint8_t	num_handlers =0

Macro Definition Documentation

MAX_SYSTICK_HANDLERS

#define MAX_SYSTICK_HANDLERS   4

Definition at line 19 of file systick.c.

Referenced by systick_attach_callback().

NVIC_CCR

#define NVIC_CCR   (*(volatile uint32_t *)0xE000ED14)

Definition at line 135 of file systick.c.

Function Documentation

__attribute__()

void __attribute__

(

(noreturn)

)

Definition at line 78 of file systick.c.

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__go_next_task()

void __go_next_task

(

)

Referenced by __attribute__().

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hal_go_next_task()

void hal_go_next_task

(

)

Definition at line 1448 of file Scheduler.cpp.

Referenced by __attribute__().

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hal_stop_multitask()

void hal_stop_multitask

(

)

Definition at line 1449 of file Scheduler.cpp.

Referenced by __attribute__().

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hal_try_kill_task_or_reboot()

void hal_try_kill_task_or_reboot

(

uint8_t

num

)

Definition at line 1447 of file Scheduler.cpp.

Referenced by __attribute__().

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systick_attach_callback()

void systick_attach_callback

(

Handler

callback

)

Attach a callback to be called from the SysTick exception handler.

To detach a callback, call this function again with a null argument.

Definition at line 28 of file systick.c.

Referenced by systick_check_underflow().

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systick_detach_callback()

void systick_detach_callback

(

Handler

callback

)

Definition at line 34 of file systick.c.

Referenced by systick_check_underflow().

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SysTick_Handler()

void SysTick_Handler

(

void

)

Definition at line 63 of file systick.c.

Referenced by systick_check_underflow().

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systick_init()

void systick_init

(

uint32_t

reload_val

)

Initialize and enable SysTick.

Clocks the system timer with the core clock, turns it on, and enables interrupts.

Parameters

reload_val

Appropriate reload counter to tick every 1 ms.

Definition at line 50 of file systick.c.

Referenced by init().

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Variable Documentation

IN_CCM

Handler systick_handlers [MAX_SYSTICK_HANDLERS] IN_CCM

Definition at line 16 of file systick.c.

num_handlers

uint8_t num_handlers =0

static

Definition at line 21 of file systick.c.

Referenced by systick_attach_callback(), systick_detach_callback(), and SysTick_Handler().