def readEventsFromDevice(ean, channel, msgId):
# Read all events from device matching ean, channel and msgId
print "Open device..."
# Create a device with the selected EAN number
dev = kvDevice.kvDevice(ean=ean)
# Open a device that matches our criteria (EAN)
dev.memoOpen()
# Mount the log files so we can acces them
dev.memo.deviceMountKmf()
# Read out how many log files that are availible on the card
fileCount = dev.memo.logFileGetCount()
print "Found %d file%s on card:" % (fileCount, "s" if fileCount > 1 else "")
# Now we read all events from each file found on the card.
for fileIndx in range (fileCount):
# When mounting the logfile, we get an aproximate value back
eventCount = dev.memo.logFileMount(fileIndx)
print "File %3d: Contains less than %d events" % (fileIndx, eventCount)
# We read out when the logging was started
startTime = dev.memo.logFileGetStartTime()
print "Logging started at %s\n" % startTime
while True:
# Read events from the log file, when no more events are availible,
# 'None' will be returned
event = dev.memo.logReadEventEx()
if event is None:
break
# We are only interested in events that are log messages
if type(event) is kvmlib.logMsg:
# Also filter on message id and channel number
if event.id == msgId and event.channel == channel:
# We know the message data is a float, so convert it to a
# more usable format
value = raw2float(event.data)
# Now filter on the value
if value > 159 and value < 163:
# Get the time of the event
eventTime = getEventTime(startTime, event)
print "%s, Msg id %d value %f on channel %d:" % (eventTime, msgId, value, channel)
#print event
print "\n"
# Dismount to free up resources
dev.memo.logFileDismount()
# We are done, close the kvmlib handle to device
dev.memoClose()
import sys
sys.path.append("D:/temp/CanlibSDK_5.14/Samples/Python")
import kvDevice
# Connect to our Kvaser Memorator Pro 5xHS with EAN 00778-9
dev = kvDevice.kvDevice(ean="73-30130-00778-9")
dev.open()
dev.memoOpen()
fileCount = dev.memo.logFileGetCount()
print "Found %d file%s on card:" % (fileCount,
"s" if fileCount > 1 else "")
# Loop through all logfiles and write their contents to stdout
for fileIndx in range(fileCount):
myEvents = dev.memoReadEvents(fileIndx)
for event in myEvents:
print event
print "\n"
# Delete all logfiles
dev.memo.logFileDeleteAll()
# Close device
dev.memoClose()
dev.close()
# In order to hide these secret messages, we write them encoded ;-)
messages = [(1, "-Jung unccraf gb n sebt'f pne jura vg oernxf qbja?"),
(2, "-Vg trgf gbnq njnl."),
(3, "-Jul jnf fvk fpnerq bs frira?"),
(4, "-Orpnhfr frira 'ngr' avar."),
(5, "-Jung vf gur qvssrerapr orgjrra fabjzra naq fabjjbzra?"),
(6, "-Fabjonyyf."),
(7, "-Jurer qvq lbh svaq gurfr?"),
(8, "-uggc://jjj.ynhtusnpgbel.pbz/wbxrf/jbeq-cynl-wbxrf")]
# We will be using the first Eagle device found connected to the PC
# For an introduction to the kvDevice object, see
# http://www.kvaser.com/developer-blog/object-oriented-approach-accessing-kvaser-device-python-3-3/
eagle_ean = "73-30130-00567-9"
dev = kvDevice.kvDevice(ean=eagle_ean)
# Open a handle to the device
dev.open()
# Load the t program into slot 0
dev.channel.scriptLoadFile(0, "envvar.txe")
# Start the program in slot 0
dev.channel.scriptStart(0)
# Our protocol states that we should wait until HostIdConnected is zero before trying to connect
print "Waiting for device to be free..."
# All calls to the kvScriptEnvarOpen() and kvScriptEnvvarGetXXX() functions are hidden in the
# envvar class inside canlib.py. Here we can access it directly with dev.channel.envvar.YYY
while dev.channel.envvar.HostIdConnected != 0:
