Tools: Add PXF enable and check CS scripts

Tools/PXF/check_CS.sh

@@ -0,0 +1,17 @@
+#!/bin/bash
+
+# This script checks the Chip Select (since it's negated it should be put to low value)
+
+MPU6000_CS_PIN=113 # Corresponds with P9_28
+MPU9250_CS_PIN=49 # Corresponds with P9_28
+MS5611_CS_PIN=7 # Corresponds with P9_42
+
+# activate all the GPIOs and force them to untake the bus
+echo "Checking MPU6000 CS"
+cat /sys/class/gpio/"gpio"$MPU6000_CS_PIN/value
+
+echo "Cheking MPU9250 CS"
+cat /sys/class/gpio/"gpio"$MPU9250_CS_PIN/value
+
+echo "Checking MS5611 CS"
+cat /sys/class/gpio/"gpio"$MS5611_CS_PIN/value

Tools/PXF/enable_CS.sh

@@ -0,0 +1,59 @@
+#!/bin/bash
+
+# This script enables the Chip Select (since it's negated it should be put to low value)
+# of the sensor passed as a parameter
+
+MPU6000_CS_PIN=113 # Corresponds with P9_28
+MPU9250_CS_PIN=49 # Corresponds with P9_28
+MS5611_CS_PIN=7 # Corresponds with P9_42
+
+# activate all the GPIOs and force them to untake the bus
+echo "Disabling MPU6000 CS"
+echo $MPU6000_CS_PIN > /sys/class/gpio/export 2> /dev/null
+echo out > /sys/class/gpio/"gpio"$MPU6000_CS_PIN/direction
+echo 1 > /sys/class/gpio/"gpio"$MPU6000_CS_PIN/value
+
+echo "Disabling MPU9250 CS"
+echo $MPU9250_CS_PIN > /sys/class/gpio/export 2> /dev/null
+echo out > /sys/class/gpio/"gpio"$MPU9250_CS_PIN/direction
+echo 1 > /sys/class/gpio/"gpio"$MPU9250_CS_PIN/value
+
+echo "Disabling MS5611 CS"
+echo $MS5611_CS_PIN > /sys/class/gpio/export 2> /dev/null
+echo out > /sys/class/gpio/"gpio"$MS5611_CS_PIN/direction
+echo 1 > /sys/class/gpio/"gpio"$MS5611_CS_PIN/value
+
+
+if [ $# -eq 0 ]
+  then
+    	echo "No arguments supplied. Please provide one of the following sensors: mpu6000, mpu9250, ms5611"
+	echo "   source enable_cs.sh <sensor> "
+	return 0
+fi
+
+if [ $1 == "mpu6000" ]
+then
+	CS_PIN=$MPU6000_CS_PIN
+	echo out > /sys/class/gpio/"gpio"$CS_PIN/direction
+	echo 0 > /sys/class/gpio/"gpio"$CS_PIN/value
+	echo "Enabling MPU6000 CS"
+elif [ $1 == "mpu9250" ]
+then
+	CS_PIN=$MPU9250_CS_PIN
+	echo out > /sys/class/gpio/"gpio"$CS_PIN/direction
+	echo 0 > /sys/class/gpio/"gpio"$CS_PIN/value
+	echo "Enabling MPU9250 CS"
+elif [ $1 == "ms5611" ]
+then
+	CS_PIN=$MS5611_CS_PIN
+	echo out > /sys/class/gpio/"gpio"$CS_PIN/direction
+	echo 0 > /sys/class/gpio/"gpio"$CS_PIN/value
+	echo "Enabling MS5611 CS"
+else
+    	echo "Sensor supplied invaled. Please provide one of the following sensors: mpu6000, mpu9250, ms5611"
+	echo "   source enable_cs.sh <sensor> "
+	return 0
+fi
+
+# to verify do:
+#    cat /sys/class/gpio/"gpio"$CS_PIN/value