osd-contiki/cpu/mc1322x/tools/rftestrx2pcap.py
Mariano Alvira 2c9a538582 Merge branch 'master' of git://git.devl.org/git/malvira/libmc1322x into bump-libmc1322x
bump libmc1322x to 7bee48243c

Conflicts:
	cpu/mc1322x/board/Makefile.board
	cpu/mc1322x/lib/include/uart.h
	cpu/mc1322x/lib/uart1.c
	cpu/mc1322x/lib/uart2.c
	cpu/mc1322x/src/default_lowlevel.c
2012-11-18 18:27:39 -05:00

119 lines
2.8 KiB
Python
Executable file

#!/usr/bin/python
# (C) 2012, Mariano Alvira <mar@devl.org>
import sys,os,time
from struct import *
import re
import serial
if len(sys.argv) < 3:
sys.stderr.write( "Usage: %s tty channel [outfile]\n" %(sys.argv[0]))
sys.stderr.write( " channel = 11-26\n")
sys.exit(2)
# change the channel
# rftest-rx increments it's channel everytime you send a character and returns "channel: num"
# send a character until we get to the right channel
try:
serport = serial.Serial(sys.argv[1], 115200, timeout=1)
except IOError:
print "error opening port"
sys.exit(2)
chan = ''
while chan != int(sys.argv[2]) - 11:
serport.write(' ')
chanstr = ''
while 1:
chanstr += serport.read(1)
m = re.match(".*channel: (\w+)\s+", chanstr)
if m is not None:
chan = int(m.group(1))
break
try:
sys.stderr.write('writing to file %s \n' % (sys.argv[3]))
outfile = open(sys.argv[3], 'w+b')
except IndexError:
outfile = sys.stdout
sys.stderr.write("RX: 0\r")
### PCAP setup
MAGIC = 0xa1b2c3d4;
MAJOR = 2;
MINOR = 4;
ZONE = 0;
SIG = 0;
SNAPLEN = 0xffff;
NETWORK = 230; # 802.15.4 no FCS
# output overall PCAP header
outfile.write(pack('<LHHLLLL', MAGIC, MAJOR, MINOR, ZONE, SIG, SNAPLEN, NETWORK))
count = 0
fileempty = 1
newpacket = 0
try:
while 1:
line = serport.readline().rstrip()
m_rftestline = re.match(".*rftest-rx --- len 0x(\w\w).*", line)
if m_rftestline is not None:
newpacket = 1
t = time.time()
sec = int(t)
usec = (t - sec) * 100000
length = int(m_rftestline.group(1), 16)
# sys.stderr.write(line + "\n")
# sys.stderr.write("rftestline: %d %d %d\n" % (sec, usec, length))
continue
# if this is a new packet, add a packet header
if newpacket == 1:
newpacket = 0
outfile.write(pack('<LLLL',sec,usec,length,length))
count += 1
sys.stderr.write("RX: %d\r" % count)
# clear file empty flag
if fileempty:
fileempty = 0
if fileempty == 0 :
# write payload
for d in line.split(' '):
# do a match because their might be a \r floating around
m = re.match('.*(\w\w).*', d)
if m is not None:
outfile.write(pack('<B', int(m.group(1),16)))
# cn.recv_block()
# if cn.data != None:
# # sys.stderr.write(cn.data)
# # sys.stderr.write(cn.data)
# # sys.stderr.write(str(time.time()))
# t = time.time()
# sec = int(t)
# usec = (t - sec) * 100000
# # sys.stderr.write("new packet: %d %d %d" % (sec, usec, len(cn.data)))
# count += 1
# sys.stderr.write("\x1b[G") # Move the cursor up one
# sys.stderr.write("RX: %d" % count)
# sys.stdout.write(pack('<LLLL',sec,usec,len(cn.data),len(cn.data)))
# sys.stdout.write(cn.data)
except KeyboardInterrupt:
# cn.close()
sys.exit(2)