1 files changed, 140 insertions, 0 deletions
diff --git a/gr-msdd6000/src/python_test/newtest.py b/gr-msdd6000/src/python_test/newtest.py
new file mode 100644
index 000000000..9596a0675
--- /dev/null
+++ b/gr-msdd6000/src/python_test/newtest.py
@@ -0,0 +1,140 @@
+#!/usr/bin/python
+
+from socket import *
+import string
+import time
+import struct;
+import random;
+import array;
+import cmath;
+from numpy import *;
+from numpy.fft import *;
+from pylab import *;
+
+myport = random.randint(1025,65535);
+filename = "output.dat";
+
+msdd_port = 10001
+msdd_host = "10.45.4.43"
+
+buf = 100000;
+
+my_udp_addr = ('',10001);
+my_udp_addr = ('10.45.1.229 ',10001);
+
+UDPSock = socket(AF_INET,SOCK_DGRAM);
+UDPSock.bind(my_udp_addr);
+
+#f_mhz = 3500;	
+#f_mhz = 3500;	
+f_mhz = 100;	
+f_hz = 0;	
+gain = 0; 	
+window = 3; 	#0=rect, 1=hanning, 2=hamming, 3=blackman
+
+samples = 12000;
+samples = samples*4; 	#bytes of data we are requesting
+
+decim = 2;	#0-8   (3 => 2^3 = 8)  
+decim = decim+16;	# +16 to use 16bit floats instead of 32 bit floats
+mode = 0; 	#0=IQ, 1=MAG, 2=MAGDB
+#sets = 0;
+sets = 0xffffffff;
+
+size_int = 4;
+request_len = 6*size_int;	# 6 int items not including the 8 bytes for opcode and length fields
+print "request len = %d"%(request_len);
+
+#raw_data = struct.pack("<IIIIIIII", 0x01, 0x18, f_mhz, f_hz, gain, samples, decim, sets);
+raw_data = struct.pack("<IIIIIIII", 0x01, request_len, f_mhz, f_hz, gain, samples, decim, sets);
+
+data = raw_data;
+
+UDPSock.sendto(data, (msdd_host, msdd_port));
+
+print "sent"
+
+
+
+count = 0;
+
+total_data = [];
+
+state = 0;
+
+vals = [];
+mags = [];
+re = [];
+
+sample_count = 0;
+IQ_bytes=0;
+
+while(True):
+	print state;
+	if(state==0):
+		data = UDPSock.recv(4);
+		[opcode] = struct.unpack("<I", data);
+		print "Opcode = %d"%(opcode);
+		if(opcode==1):
+
+			# if UDP mode and sets_stream requested,
+			# we do not get a header reply back, only data
+			if(sets == 0):
+				state = 1;
+			else:
+				state = 2;
+
+	elif(state==1):
+		data = UDPSock.recv(7*4);
+		args = struct.unpack("<IIIIIII", data);
+		print ["reply_len", "freq_mhz", "offset_hz", "gain", "sample_bytes", "decim", "sets_remain"];
+		print args;
+		IQ_bytes = args[0] - 7*4;
+		state =2;
+
+	elif(state==2):
+		data = UDPSock.recv(4);
+		[i,q] = struct.unpack("<hh", data);
+		tmp = complex(i,q);
+
+		re.append(i);
+		vals.append(tmp);
+		mags.append(abs(tmp));
+
+
+		sample_count = sample_count + 1;
+#		print "sample count %d"%(sample_count)	
+
+		IQ_bytes = IQ_bytes - 4;
+		if(IQ_bytes < 4):
+			print "got all data (total %d)"%(sample_count);
+			print "remaining: %d"%(IQ_bytes);
+			break;
+
+
+UDPSock.close();
+
+print "done"
+nmags = []
+for i in mags:
+	if i == 0:
+		i=1;
+	nmags.append(i);
+
+
+subplot(2,1,1);
+plot(20*log10(nmags));
+
+fft_data = 20*log10(fftshift(fft(vals)));
+
+subplot(2,1,2);
+plot(fft_data);
+show();
+
+f = open(filename, "w");
+for sample in vals:
+	binchunk = struct.pack("<ff",float(sample.real), float(sample.imag) );
+	f.write(binchunk);
+f.close();
+
+