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RPBASIC-52 PROGRAMMING GUIDE

2-123

CONFIG FREQ

Syntax: CONFIG FREQ channel,interval

Where: channel = counter num ber, 0 or 1

interval = number of 5 milli-second periods between readings. Range is 1 to 255. An

interval of 0 turns off this multitasking routine.

Function: Sets up multitasking to read a counter every interval. The counter is read using the FREQ command.

Mode: Command, Run

Use: CONFIG FREQ 0,100

Cards: RPC-210, RPC-320, RPC -330 (cards with LSI 7166 counter chip)

DESCRIPTION

Comm and sets up RPBASIC operating system so FREQ function can operate. This comm and defines a

counter and time interval between counter reads.

Longer interval smooths out readings. Short intervals (interval between 1 and 10) are not recommended.

FREQ

ERROR

BAD ARGUMENT channel > 0 or 1 (depending upon the card)

interval > 255

EXAMPLE

See the FREQ command for an example.

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