arm1100.h

来自「WinCE 3.0 BSP, 包含Inter SA1110, Intel_815」· C头文件 代码 · 共 17 行

#define TIMER_PERIOD 1
#define TIMER_COUNTDOWN 3686 // Inc to next 1ms tick (3.6864x10^6tick/sec * 1/1000sec/msec)

// Timer count value for 1 ms
#define OEM_COUNT_1MS (OEM_CLOCK_FREQ / 1000)

//#define OEMClockFreq 3686400       // ticks/s
//#define GET_TICK_TIME() ((struct ostreg *)OST_BASE)->oscr
#define RESCHED_PERIOD 1	// Reschedule period in ms

// Timer count value for rescheduler period (3686 for 1 ms system tick)
#define RESCHED_INCREMENT ((RESCHED_PERIOD * OEM_CLOCK_FREQ) / 1000)

// Defines how close the next match point can be within current timer count
#define NO_RESCHED_WINDOW (OEM_COUNT_1MS / 10)