[ECOS] CYGNUM_HAL_RTC_PERIOD

["vasantha.rajan" <vasantha.rajan@cranessoftware.com>]

Hi all,

I have some doubt in CYGNUM_HAL_RTC_PERIOD. I will list my doubts

1. In my code I just want to trigger my alarm for some micro seconds (say for
25 us)

2. right now in my CDL(hal/arm/arm9/excalibur/v2_0b1/cdl) I have my
CYGNUM_HAL_RTC_NUMERATOR as  1000000000, CYGNUM_HAL_RTC_DENOMINATOR as
100. So the clock triggers for every 10000000 ns(ie,10000 us)

3. Now I changed my  CYGNUM_HAL_RTC_DENOMINATOR to 10000 so my clock will
trigger for every 100us.

4. So, In my cyg_alarm_initialize() API, if I use 25 + cyg_current_time() as
my trigger time value ,will the alarm function will be triggered in
25us????????or my calculation is wrong??????

Thank you very much

Vasanth

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