PIAST スクリプト

PIASTの各種周辺機器を使用するためのスクリプト類
注意:GPIOの番号は"物理"です。wiringpiを使う場合の番号ではありません。

GPIO初期化

• GPIO設定(gpioinit.sh)

#!/bin/sh

PINNS="4 6 13 19 26"
GPIOPATH="/sys/class/gpio"

for i in $PINNS
do
    GPORT=gpio$i

    if [ ! -d $GPIOPATH/$GPORT ]
    then
        echo $i > $GPIOPATH/export
        echo "out" > $GPIOPATH/$GPORT/direction
    fi
done

• pinctrlバージョン

#!/bin/sh

PINNS="4 6 13 19 26"

for i in $PINNS
do
    pinctrl set $i op dl
done

• GPIO解放(gpiounconfig.sh)

#!/bin/sh

PINNS="4 6 13 19 26"
GPIOPATH="/sys/class/gpio"

for i in $PINNS
do
    GPORT=gpio$i
　
    if [ -d $GPIOPATH/$GPORT ]
    then
        echo $i > $GPIOPATH/unexport
    fi
done

リレー制御用

• リレーオン(relayon.sh)

#!/bin/sh

PINNO=4
RELAYPORT=gpio$PINNO
GPIOPATH="/sys/class/gpio"

if [ ! -d $GPIOPATH/$RELAYPORT ]
then
    echo $PINNO > $GPIOPATH/export
    echo "out" > $GPIOPATH/$RELAYPORT/direction
fi

echo "1" > $GPIOPATH/$RELAYPORT/value

• リレーオフ(relayoff.sh)

#!/bin/sh

PINNO=4
RELAYPORT=gpio$PINNO
GPIOPATH="/sys/class/gpio"

if [ ! -d $GPIOPATH/$RELAYPORT ]
then
    echo $PINNO > $GPIOPATH/export
    echo "out" > $GPIOPATH/$RELAYPORT/direction
fi

echo "0" > $GPIOPATH/$RELAYPORT/valu

LED制御

• LED点灯(ledon.sh)

#!/bin/sh

PINNOS="6 13 19 26"
GPIOPATH="/sys/class/gpio"

PINNO=`echo $PINNOS | cut -f$1 -d' '`

if [ "$PINNO" = "" ]
then
    echo "Usage: ledon.sh [LED](1-4)"
    exit
fi

LEDPORT=gpio$PINNO

if [ ! -d $GPIOPATH/$LEDPORT ]
then
    echo $PINNO > $GPIOPATH/export
    echo "out" > $GPIOPATH/$LEDPORT/direction
fi

echo "1" > $GPIOPATH/$LEDPORT/value

• LED消灯(ledoff.sh)

#!/bin/sh

PINNOS="6 13 19 26"
GPIOPATH="/sys/class/gpio"

PINNO=`echo $PINNOS | cut -f$1 -d' '`

if [ "$PINNO" = "" ]
then
    echo "Usage: ledoff.sh [LED](1-4)"
    exit
fi

LEDPORT=gpio$PINNO

if [ ! -d $GPIOPATH/$LEDPORT ]
then
    echo $PINNO > $GPIOPATH/export
    echo "out" > $GPIOPATH/$LEDPORT/direction
fi

echo "0" > $GPIOPATH/$LEDPORT/value