cycle_counter.c File Reference

ARM functions for busy-wait delay loops. More...

#include "cycle_counter.h"

Go to the source code of this file.

Functions
OPTIMIZE_HIGH RAMFUNC void	portable_delay_cycles (unsigned long n)
	Delay loop to delay n number of cycles.

Detailed Description

ARM functions for busy-wait delay loops.

Copyright (c) 2012-2018 Microchip Technology Inc. and its subsidiaries.

\cond ASF_LICENSE

Definition in file cycle_counter.c.

Function Documentation

portable_delay_cycles()

OPTIMIZE_HIGH RAMFUNC void portable_delay_cycles

(

unsigned long

n

)

Delay loop to delay n number of cycles.

Note

The function runs in internal RAM so that flash wait states will not affect the delay time.

Parameters

n	Number of cycles

Definition at line 42 of file cycle_counter.c.

{
    UNUSED(n);
 
    __asm (
        "loop: DMB  \n"
        "SUBS R0, R0, #1  \n"
        "BNE.N loop         "
    );
}