?? usleep.c
字號:
/* Copyright 2001, 2002 Georges Menie (www.menie.org) This program is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA*/#include "timer.h"#include "68vz328.h"#include "io.h"/* waiting loop controled by the 1us timer */void usleep (int t){ unsigned short start, stop; start = readw (TCN1); while (t > 0 && (readw (TCTL1) & 1)) { stop = readw (TCN1); t -= (unsigned short) (stop - start); start = stop; }}
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -