st_pwm_setup()

Run the designated Software Timer(ST) after configuring it to the PWM mode

Description

void st_pwm_setup(int $st_id, int $pin, int $width, int $period [, string $div = "ms"])

Parameters

$st_id: Software Timer ID
$pin: pin number to output signal
$width: pulse HIGH duration
$period: a pulse period
$div: unit - sec (second), ms (milli second, default unit), us (micro second)

Return Value

none

Example

<?php
include "/lib/sd_340.php";
// Configuring ST0 as period 200us with 50% duty PWM with output signal pin 5 and start it
st_pwm_setup(0, 5, 100, 200);
// Configuring ST1 as period 100us with 10% duty PWM with output signal pin 9 and start it
st_pwm_setup(1, 9, 10, 100, "us");
?>

See also

< st_free_get_count()

st_pwm_width() >