systick_counter.h File Reference

ARM functions for busy-wait delay loops.

Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.

#include <compiler.h>
#include <clock.h>

Convenience functions for busy-wait delay loops
#define	cpu_delay_us(delay)   delay_cycles_us(delay)
	Delay program execution for at least the specified number of microseconds. More...
#define	cpu_delay_ms(delay)   delay_cycles_ms(delay)
	Delay program execution for at least the specified number of milliseconds. More...
#define	cpu_delay_s(delay)   delay_cycles_ms(1000 * delay)
	Delay program execution for at least the specified number of seconds. More...
static void	delay_cycles (const uint32_t n)
	Delay loop to delay n number of cycles Delay program execution for at least the specified number of CPU cycles. More...
void	delay_cycles_us (uint32_t n)
	Delay loop to delay at least n number of microseconds. More...
void	delay_cycles_ms (uint32_t n)
	Delay loop to delay at least n number of milliseconds. More...

#define cpu_delay_ms

(

delay

)

delay_cycles_ms(delay)

Delay program execution for at least the specified number of milliseconds.

Parameters

delay

number of milliseconds to wait

#define cpu_delay_s

(

delay

)

delay_cycles_ms(1000 * delay)

Delay program execution for at least the specified number of seconds.

Parameters

delay

number of seconds to wait

#define cpu_delay_us

(

delay

)

delay_cycles_us(delay)

Delay program execution for at least the specified number of microseconds.

Parameters

delay

number of microseconds to wait

static void delay_cycles ( const uint32_t  n )

inlinestatic

Delay loop to delay n number of cycles Delay program execution for at least the specified number of CPU cycles.

Parameters

n	Number of cycles to delay

Referenced by delay_cycles_ms(), delay_cycles_us(), and ssd1306_hard_reset().

void delay_cycles_ms

(

uint32_t

n

)

Delay loop to delay at least n number of milliseconds.

Parameters

n	Number of milliseconds to wait

References cycles_per_ms, and delay_cycles().

void delay_cycles_us

(

uint32_t

n

)

Delay loop to delay at least n number of microseconds.

Parameters

n	Number of microseconds to wait

References cycles_per_us, and delay_cycles().