Countdown Timers

This collection of instructions operate on the countdown timers.

There are 8 countdown timers, numbered 0 thru 7.  These timers may be started or stopped at will and they don't consume any RAM.  They are global and are shared amoungst all tasks.

SPLat 8 bit controllers (green boards)

All these timers can have a maximum count of 32767, but the duration this equals varies depending on the timer number.

• Timers 0 thru 3 count in 100ms increments.  The maximum count time is 54 minutes, 36 seconds.
• Timers 4 thru 7 count in 10ms increments.  The maximum count time is 5 minutes, 27 seconds.

SPLat 32 bit controllers (black boards)

All these timers can have a maximum count of 16777215 via fSetTimer, but the duration this equals varies depending on the timer number.

• Timers 0 thru 3 count in 100ms increments.  The maximum count time is 19 days, 10 hours, 2 minutes.
• Timers 4 thru 7 count in 10ms increments.  The maximum count time is 1 day, 22 hours, 36 minutes, 12 seconds.

Using SetTimer, the maximum count is 65535 which gives a duration per timer of:

• Timers 0 thru 3 count in 100ms increments.  The maximum count time is 1 hour, 49 minutes, 13 seconds.
• Timers 4 thru 7 count in 10ms increments.  The maximum count time is 10 minutes, 55 seconds.

Note: These timers are not affected by changing the task time tick.