From 3d1af90d3dfa5440a8b8063df352670b1f6adf96 Mon Sep 17 00:00:00 2001
From: AvSquirrel <AvSquirrel@users.noreply.github.com>
Date: Wed, 20 Apr 2016 02:11:53 +0000
Subject: [PATCH] Add setup script for MTK3339 based receivers

---
 test/mtk_config.sh | 73 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 73 insertions(+)
 create mode 100644 test/mtk_config.sh

diff --git a/test/mtk_config.sh b/test/mtk_config.sh
new file mode 100644
index 00000000..e16afd0d
--- /dev/null
+++ b/test/mtk_config.sh
@@ -0,0 +1,73 @@
+#!/bin/bash
+#
+# mtk_config.sh: Script to set up MTK3339 receiver for Stratux. 
+# Resets receiver to 9600 and 1 Hz GPRMC messaging, then enables 
+# WAAS, 5 Hz position reporting, the NMEA messages needed by
+# Stratux, and 38400 bps serial output.
+
+printf "About to configure MTK3339 receiver on /dev/ttyAMA0.\n"
+printf "Press ctrl-C to abort or any other key to continue.\n"
+read
+
+# Iterate through common bitrates and send commands to reduce output to 1 Hz / 9600 bps.
+printf "Setting MTK and RPi baud rate of /dev/ttyAMA0 to 9600. Iterating through common rates.\n"
+printf "Current /dev/ttyAMA0 baudrate.\n"
+printf "\$PMTK220,1000*1F\r\n" > /dev/ttyAMA0
+printf "\$PMTK251,9600*17\r\n" > /dev/ttyAMA0
+sleep 0.2
+printf "38400 bps.\n"
+stty -F /dev/ttyAMA0 38400
+printf "\$PMTK220,1000*1F\r\n" > /dev/ttyAMA0
+printf "\$PMTK251,9600*17\r\n" > /dev/ttyAMA0
+sleep 0.2
+printf "115200 bps.\n"
+printf "\$PMTK220,1000*1F\r\n" > /dev/ttyAMA0
+stty -F /dev/ttyAMA0 115200
+printf "\$PMTK220,1000*1F\r\n" > /dev/ttyAMA0
+printf "\$PMTK251,9600*17\r\n" > /dev/ttyAMA0
+sleep 0.2
+printf "57600 bps.\n"
+stty -F /dev/ttyAMA0 57600
+printf "\$PMTK220,1000*1F\r\n" > /dev/ttyAMA0
+printf "\$PMTK251,9600*17\r\n" > /dev/ttyAMA0
+sleep 0.2
+printf "19200 bps.\n"
+stty -F /dev/ttyAMA0 19200
+printf "\$PMTK220,1000*1F\r\n" > /dev/ttyAMA0
+printf "\$PMTK251,9600*17\r\n" > /dev/ttyAMA0
+sleep 0.2
+printf "4800 bps.\n"
+stty -F /dev/ttyAMA0 4800
+printf "\$PMTK220,1000*1F\r\n" > /dev/ttyAMA0
+printf "\$PMTK251,9600*17\r\n" > /dev/ttyAMA0
+sleep 0.2
+
+
+stty -F /dev/ttyAMA0 9600
+printf "\$PMTK314,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0*29\r\n" > /dev/ttyAMA0
+
+printf "MTK has been set to 9600 baud with RMC messages at 1 Hz.\n"
+printf "Press ctrl-C to abort, or any other key enter to continue with setup.\n"
+read
+
+# Now start the Stratux setup.
+printf "Sending MTK command to set GPS baud rate to 38400\n"
+printf "\$PMTK251,38400*27\r\n" > /dev/ttyAMA0
+
+printf "Setting RPi baud rate of /dev/ttyAMA0 to 38400\n"
+stty -F /dev/ttyAMA0 38400
+sleep 0.2
+printf "Sending MTK command to configure NMEA message output\n"
+printf "\$PMTK314,0,1,1,1,5,5,0,0,0,0,0,0,0,0,0,0,0,0,0*29\r\n" > /dev/ttyAMA0
+sleep 0.2
+printf "Sending MTK commands to enable WAAS\n"
+printf "\$PMTK301,2*2E\r\n" > /dev/ttyAMA0
+sleep 0.2
+printf "\$PMTK513,1*28\r\n" > /dev/ttyAMA0
+sleep 0.2
+printf "Sending MTK commands to enable 5 Hz position reporting\n"
+printf "\$PMTK220,200*2C\r\n" > /dev/ttyAMA0
+
+# Finally, test the connection.
+printf "Opening /dev/ttyAMA0 to listen to GPS. Press ctrl-C to cancel.\n"
+cat /dev/ttyAMA0
\ No newline at end of file