st_pwm_width()

Changing designated Software Timer's PWM signal

Description

void st_pwm_width(int $st_id, int $width, int $period)

Parameters

$st_id: Software Timer ID
$width: pulse HIGH duration
$period: a pulse period

Return Value

none

Example

<?php
include "/lib/sd_340.php";
// Changing ST0 as period 100us with 1% duty PWM
st_pwm_setup(0, 0, 1, 100);
for($i = 0; $i < 99; $i++)
{
  st_pwm_width(0, 1+$i, 100);   // increasing duty cycle by 1%
}
?>

See also

< st_pwm_setup()