iVIEW-100 Series user’s Manual, 2006, v2.0 ----- 130
TimerOpen()
Func.: Open timer function usage.
Syntax:
int TimerOpen(void);
Header: #include ”iVIEW.h”
Description:
Before use any timer function must call TimerOpen
On success return NoError. If Timer is already opend,return 1.
Example:
(tmr.c)
#include <iVIEW.h>
#include <mmi100.h>
void main()
{
unsigned long time;
int quit=0;
InitLib();
Print("\n\rPress any key to start timer");
Print("\n\rthen Press '0' to Reset timer,’1’~’4’ to delay, 'q' to quit\n\r");
Getch();
TimerOpen(); /*open timer function*/
while(!quit){ /*set the key function*/
if(Kbhit()){
switch(Getch()){
case '0':
TimerResetValue(); /*reset timer*/
break;
case '1':
DelayMs(1000); /* delay unit is ms, use system timeticks. */
break;
case '2':
Delay(1000); /* delay unit is ms, use CPU Timer 1. */
break;
case '3':
Delay_1(1000); /* delay unit is 0.1 ms ,use CPU Timer 1.*/
break;
case '4':
Delay_2(1000); /* delay unit is 0.01 ms ,use CPU Timer 1.*/
break;
case 'q':
quit=1;
break;
}
}
time=TimerReadValue(); /*read timer*/
Print("\r\nTime=%8.3f sec",0.001*time);
}
TimerClose(); /*close timer function*/
}
