cleaning up and putting much better code in. Step 1 of 2

git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8778 221aa14e-8319-0410-a670-987f0aec2ac5

1 files changed, 110 insertions, 0 deletions

diff --git a/gr-msdd6000/src/python_test/udp_stream_cap.py b/gr-msdd6000/src/python_test/udp_stream_cap.py
new file mode 100644
index 000000000..6326f27c5
--- /dev/null
+++ b/gr-msdd6000/src/python_test/udp_stream_cap.py
@@ -0,0 +1,110 @@
+#!/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 = 1000;	
+f_hz = 0;	
+gain = 0; 	
+window = 3; 	#0=rect, 1=hanning, 2=hamming, 3=blackman
+
+#samples = 65535;
+samples = 16384;
+#samples = samples*4; 	#bytes of data we are requesting
+
+decim = 4;	#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, 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;
+
+
+numtocap = 1000;
+IQ_bytes = 4 * numtocap;
+
+numbytes = 100 * 65536;
+
+num_rx = 0;
+start =  time.time();
+
+d = [];
+while(num_rx < numbytes):
+	data = UDPSock.recv(65536);
+	num_rx = num_rx + len(data);
+	d.append(data);
+
+mags = [];
+for i in range(0, len(d)/4):
+	v = struct.unpack_from("<f",d, i*4);
+	mags.append(abs(v));
+plot(mags);
+show();
+
+end = time.time();
+print "recieved %d bytes in %f sec"%(numbytes, end-start);
+
+bytes_per_sec = numbytes / (end-start);
+samples_per_sec = bytes_per_sec / 4;
+MSPS = samples_per_sec / 1000000.0;
+
+print "Got %f MSPS"%(MSPS);
+print "Expected %f MSPS"%(102.4/math.pow(2,(1+decim-16)));
+	
+
+halt_data = struct.pack("<II", 0x04, 0x00);
+UDPSock.sendto(halt_data, (msdd_host, msdd_port));
+
+
+UDPSock.close();
+