Timer.shtml
#include "windows.h" #include "stdio.h" #include "rtapi.h" // // Local data. // LARGE_INTEGER Period; // Timer period LARGE_INTEGER StartTime; // Start time of sampling run ULONG TimerCounter = 0; // Counts entries to timer handler // // VOID main(int argc, char **argv) { LARGE_INTEGER x; HANDLE hTimer; // // Set default timer period to 500 micro seconds // Period.QuadPart = 5000; // // Set to the next to highest real-time priority. // if (!RtSetThreadPriority( GetCurrentThread(), RT_PRIORITY_MAX-1)) printf("WARNING: Can't set to highest RTAPI priority.\n"); // // Setup and start the periodic timer. // if (!(hTimer = RtCreateTimer( NULL, // Security - NULL is none 0, // Stack size - 0 is use default TimerHandler,// Timer handler NULL, // NULL context (argument to handler) RT_PRIORITY_MAX, // Priority CLOCK_2))) // RTX HAL Timer { printf("ERROR: Could not create the RTAPI timer.\n"); RtExitProcess(2); } if (!RtSetTimerRelative( hTimer, &Period, &Period)) { printf("ERROR: Could not set and start the RTAPI timer.\n"); ExitProcess(2); } // // Wait for the sampling time. // Sleep(1000); // // Stop and delete the timer. // RtCancelTimer( hTimer, &x); RtDeleteTimer( hTimer); printf("Value of number of timers counter is %d\n",TimerCounter); ExitProcess(0); } // // timer handler function //- increment the tick counter // int RTFCNDCL TimerHandler( PVOID unused ) { TimerCounter++; return 0 ; }
