Busy-Wait Delay Routines

This module provides simple loop-based delay routines for those applications requiring a brief wait during execution.

Common for API ver. 2.

Macros
#define	delay_ms(delay)   ((delay) ? cpu_delay_ms(delay) : cpu_delay_us(1))
	Delay in at least specified number of milliseconds. More...
#define	delay_s(delay)   ((delay) ? cpu_delay_s(delay) : cpu_delay_us(1))
	Delay in at least specified number of seconds. More...
#define	delay_us(delay)   ((delay) ? cpu_delay_us(delay) : cpu_delay_us(1))
	Delay in at least specified number of microseconds. More...

Functions
void	delay_init (void)
	Initialize the delay driver. More...

#define delay_ms

(

delay

)

((delay) ? cpu_delay_ms(delay) : cpu_delay_us(1))

Delay in at least specified number of milliseconds.

Parameters

delay

Delay in milliseconds

Referenced by main().

#define delay_s

(

delay

)

((delay) ? cpu_delay_s(delay) : cpu_delay_us(1))

Delay in at least specified number of seconds.

Parameters

delay

Delay in seconds

#define delay_us

(

delay

)

((delay) ? cpu_delay_us(delay) : cpu_delay_us(1))

Delay in at least specified number of microseconds.

Parameters

delay

Delay in microseconds

void delay_init

(

void

)

Initialize the delay driver.

This must be called during start up to initialize the delay routine with the current used main clock. It must run any time the main CPU clock is changed.

References cycles_per_ms, cycles_per_us, and system_gclk_gen_get_hz().

Referenced by main(), and ssd1306_init().