--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/dump_as_ascii.py Mon Dec 10 20:05:39 2007 +0100
@@ -0,0 +1,76 @@
+import sys
+import time
+import serial
+
+MODE = {'binary': 'DDBN',
+ 'ascii': 'DDAS',
+ 'ansi': 'DDAN',
+ }
+class ConnectionError(Exception):
+ pass
+
+def read_trace(cnx, mode="binary"):
+ mode = mode.lower()
+ assert mode in MODE
+ mode = MODE[mode]
+ res = ""
+ cnx.write('%s\r'%mode)
+ i = 0
+ while i<5:
+ l = cnx.readline()
+ if l.strip() == "":
+ i += 1
+ time.sleep(0.1)
+ continue
+ #print "got a new line (%s chars) [i=%s]"%(len(l), i)
+ res += l
+ i = 0
+ return res
+
+def open_connection(device="/dev/ttyUSB0", baudrate=115200, timeout=0.1,
+ address=0, mode=1):
+ p = serial.Serial(port=device, baudrate=baudrate, timeout=timeout)
+
+ p.write('++addr %d\r'%address) # set address to 0
+ p.write('++mode %d\r'%mode) # read listen only mode
+ p.write('++mode\r')
+ i = 0
+ for i in range(10):
+ rmode = p.readline().strip()
+ if rmode != "":
+ break
+ time.sleep(timeout)
+
+ if rmode == '' or int(rmode) != mode:
+ raise ConnectionError("Can't set GPIB mode to %s"%mode)
+ return p
+
+
+import optparse
+opt = optparse.OptionParser()
+opt.add_option('-f', '--filename', default=None,
+ dest='filename',
+ help='Output filename. If not set, write to stdout')
+opt.add_option('-d', '--device', default='/dev/ttyUSB0',
+ dest='device',
+ help='Device of the RS232 connection (default: /dev/ttyUSB0)',
+ )
+opt.add_option('-m', '--mode', default='binary',
+ dest='mode',
+ help='Dumping mode (may be "binary" [default], "ascii" or "ansi")',
+ )
+opt.add_option('-a', '--address', default=0,
+ dest='address',
+ help='GPIB address of the device',
+ )
+options, argv = opt.parse_args(sys.argv)
+
+cnx = open_connection(device=options.device,
+ address=int(options.address), mode=1)
+res = read_trace(cnx, mode=options.mode)
+
+if options.filename:
+ open(options.filename, 'w').write(res)
+else:
+ print res
+ 