Remote-processing BASIC 52 Manual do Utilizador descarregar pdf (Página 131)

RPBASIC-52 PROGRAMMING GUIDE

2-112

TICK

Syntax: TICK(timer)

Where: timer = 0 to 3. It specifies the tim er numbe r.

Function: Returns a time from one of 4 process clocks in 5 ms increments.

Mode: Command,Run

Use: A = TICK(2)

Cards: All

DESCRIPTION

There are four tick timers updated 200 times per second. Each timer is independent of each other in that they

may be read and cleared separately (see CLEAR TICK). All timers are updated at the same time.

This function is separate from the real time clock and is not battery backed. All timers reset to 0 on power up

or reset. Timers continue to run in command mode and cannot b e turned off.

TICK(n) returns time in thousandths of a second (in 5 ms intervals) up to 65535.995 seconds, or

approximately 18.2 hours. The timer then starts at 0 again.

Tick timers are not affected by to the ONTICK instruction.

CLEAR TICK, ON TICK

ERRORS

BAD SYNTAX If any parameters left out

BAD ARGUMENT When timer > 3 or negative or left out

EXAMPLE

The following example clears tick timer number 3, delays for a time, then prints tick timers 0 and 3.

10 CLEAR TICK(3)

20 FOR X = 0 TO 1000

30 NEXT

40 PRINT TICK(0),TICK(3)

124.6 .425

1 2 ... 126 127 128 129 130 131 132 133 134 135 136 ... 162 163

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Remote-processing BASIC 52 Manual do Utilizador Página 131