erc32/start/bspdelay.c

0001 /*
0002  *  ERC32 BSP Delay Method
0003  */
0004
0005 /*
0006  *  COPYRIGHT (c) 1989-2014.
0007  *  On-Line Applications Research Corporation (OAR).
0008  *
0009  *  The license and distribution terms for this file may be
0010  *  found in the file LICENSE in this distribution or at
0011  *  http://www.rtems.org/license/LICENSE.
0012  */
0013
0014 #include <bsp.h>
0015
0016 void rtems_bsp_delay(int usecs)
0017 {
0018   uint32_t then;
0019
0020   then  = ERC32_MEC.Real_Time_Clock_Counter;
0021   then += usecs;
0022
0023   while (ERC32_MEC.Real_Time_Clock_Counter >= then)
0024     ;
0025 }