first pass at automated loopback tests

test/loopback_rtl_fsk.sh

@@ -0,0 +1,26 @@
+#!/bin/bash -x
+#
+# Send test frames from Pi, receive and check on rtlsdr, using integrated rtl_fsk
+
+Fs=240000
+Rb=10000
+numTxPackets=100
+bitsPerPacket=100
+numTxBits=$(( ${numTxPackets}*${Rb}/${bitsPerPacket} ))
+passRxPackets=$(( $numTxPackets-10 ))
+
+results=mktemp
+
+# kick off rx in background
+
+tsecs=5; rtl-sdr-blog/build_rtlsdr/src/rtl_fsk -g 1 -s $Fs -f 144500000 - -n $(($Fs*$tsecs)) | codec2/build_linux/src/fsk_put_test_bits -q -p $passRxPackets - 2>&1 | tee ${RESULTS} &
+rx_pid=$!
+# make sure rx is running
+sleep 2
+
+# send packets on Pi
+
+ssh pi@raspberrypi "cd pirip/tx; ../../codec2/build_linux/src/fsk_get_test_bits - $numTxBits | sudo ./fsk_rpitx -"
+
+# check results
+wait ${rx_pid}

test/loopback_rtl_sdr.sh

@@ -15,7 +15,7 @@ results=mktemp
 
 tsecs=5; rtl-sdr-blog/build_rtlsdr/src/rtl_sdr -g 1 -s $Fs -f 144500000 - -n $(($Fs*$tsecs)) | codec2/build_linux/src/fsk_demod -d -p 24 2 $Fs $Rb - - | codec2/build_linux/src/fsk_put_test_bits -q -p $passRxPackets - 2>&1 | tee ${RESULTS} &
 rx_pid=$!
-sleep 1
+sleep 2
 
 # send packets on Pi