"Timer API "

列挙型
enum	ClockDivider {   ClockDivider_1 = 0,   ClockDivider_64 = 1,   ClockDivider_256 = 2,   ClockDivider_1024 = 3 }
	allowable timer clock dividers [詳細]
関数
void	timerStart (int channel, ClockDivider divider, u16 ticks, fp callback)
	Creates a standard timer. Callback is tied directly to interupt table and called directly resulting in less latency than the attached timer.
u16	timerElapsed (int channel)
	returns the ticks elapsed since the last call to timerElapsed()

---

説明

Simple timer instantiation.

---

列挙型

enum ClockDivider

allowable timer clock dividers

列挙型の値:

ClockDivider_1	timer clock / 1 (~33513.982 kHz)
ClockDivider_64	timer clock / 64 (~523.657 kHz)
ClockDivider_256	timer clock / 256 (~130.914 kHz)
ClockDivider_1024	timer clock / 1024 (~32.7284 kHz)

---

関数

u16 timerElapsed

(

int

channel

)

returns the ticks elapsed since the last call to timerElapsed()

引数:

channel

the timer channel returned by newTimer()

戻り値:

The number of ticks which have elapsed since last call

void timerStart	(	int	channel,
		ClockDivider	divider,
		u16	ticks,
		fp	callback
	)

Creates a standard timer. Callback is tied directly to interupt table and called directly resulting in less latency than the attached timer.

引数:

	channel	The hardware channel to use (0 - 3)
	divider	The timer channel clock divider (clock will tick at 33.51392 Mhz / divider)
	ticks	The number of ticks which must elapse before the timer overflows
	callback	The callback to be called when the timer expires (if null no irq will be generated by the timer)