ht_pwm_setup()

按指定HT（Hardware Timer）的PWM模式设定及使用

Description

void ht_pwm_setup(int $ht_id, int $width, int $period [, string $div = “us”])

Parameters

$ht_id: 按PWM模式使用的HT账号
$width: 持续脉冲的HIGH区间时间
$period: 脉冲周期
$div: HT的单位 - sec (second), ms (milli second), us (micro second, 默认单位)

Return Value

none

Example

<?php
include "/lib/sd_340.php";
// Configuring HT0 as period 200us with 50% duty PWM and start it
ht_pwm_setup(0, 100, 200);
// Configuring HT1 as period 200us with 10% duty PWM and start it
ht_pwm_setup(1, 10, 100);
?>

See also

ht_pwm_width() >