def eAddressesIteration(handle, numFrames, aAddresses, aTypes, aWrites,
aNumValues, aValues, results):
"""Function for timit.Timer. Performs an eAddresses call to do
LabJack operations. Takes eAddresses parameters and a list for
results which will be filled.
"""
del results[:]
r = ljm.eAddresses(handle, numFrames, aAddresses, aTypes, aWrites,
aNumValues, aValues)
results.extend(r)
Demonstrates how to read the WiFi MAC from a LabJack.
"""
from labjack import ljm
import struct
# Open first found LabJack
handle = ljm.open(ljm.constants.dtANY, ljm.constants.ctANY, "ANY")
#handle = ljm.openS("ANY", "ANY", "ANY")
info = ljm.getHandleInfo(handle)
print("Opened a LabJack with Device type: %i, Connection type: %i,\n" \
"Serial number: %i, IP address: %s, Port: %i,\nMax bytes per MB: %i" % \
(info[0], info[1], info[2], ljm.numberToIP(info[3]), info[4], info[5]))
# Call eAddresses to read the WiFi MAC from the LabJack. Note that we are
# reading a byte array which is the big endian binary representation of the
# 64-bit MAC.
macBytes = ljm.eAddresses(handle, 1, [60024], [ljm.constants.BYTE],
[ljm.constants.READ], [8], [0]*8)
# Convert returned values to integers
macBytes = [int(b) for b in macBytes]
# Convert big endian byte array to a 64-bit unsigned integer value
mac, = struct.unpack(">Q", struct.pack("B"*8, *macBytes))
print("\nWiFi MAC : %i - %s" % (mac, ljm.numberToMAC(mac)))
# Close handle
ljm.close(handle)
UINT16 = ljm.constants.UINT16
UINT32 = ljm.constants.UINT32
# Setup and call eAddresses to write/read values to/from the LabJack.
# Write 2.5V to DAC0,
# write 12345 to TEST_UINT16,
# read TEST_UINT16,
# read serial number,
# read product ID,
# and read firmware version.
numFrames = 6
# [DAC0, TEST_UINT16, TEST_UINT16, SERIAL_NUMBER, PRODUCT_ID, FIRMWARE_VERSION]
aAddresses = [1000, 55110, 55110, 60028, 60000, 60004]
aDataTypes = [FLOAT32, UINT16, UINT16, UINT32, FLOAT32, FLOAT32]
aWrites = [WRITE, WRITE, READ, READ, READ, READ]
aNumValues = [1, 1, 1, 1, 1, 1]
aValues = [2.5, 12345, 0, 0, 0, 0]
results = ljm.eAddresses(handle, numFrames, aAddresses, aDataTypes, aWrites,
aNumValues, aValues)
print("\neAddresses results: ")
start = 0
for i in range(numFrames):
end = start + aNumValues[i]
print(" Address - %5i, data type - %i, write - %i, values: %s" %
(aAddresses[i], aDataTypes[i], aWrites[i], str(results[start:end])))
start = end
# Close handle
ljm.close(handle)
from labjack import ljm
# Open first found LabJack
handle = ljm.open(ljm.constants.dtANY, ljm.constants.ctANY, "ANY")
#handle = ljm.openS("ANY", "ANY", "ANY")
info = ljm.getHandleInfo(handle)
print("Opened a LabJack with Device type: %i, Connection type: %i,\n" \
"Serial number: %i, IP address: %s, Port: %i,\nMax bytes per MB: %i" % \
(info[0], info[1], info[2], ljm.numberToIP(info[3]), info[4], info[5]))
# Setup and call eAddresses to write/read values to/from the LabJack.
numFrames = 3
aAddresses = [1000, 55110, 55110] # [DAC0, TEST_UINT16, TEST_UINT16]
aDataTypes = [ljm.constants.FLOAT32, ljm.constants.UINT16, ljm.constants.UINT16]
aWrites = [ljm.constants.WRITE, ljm.constants.WRITE, ljm.constants.READ]
aNumValues = [1, 1, 1]
aValues = [2.5, 12345, 0] # [write 2.5 V, write 12345, read]
results = ljm.eAddresses(handle, numFrames, aAddresses, aDataTypes, aWrites, aNumValues, aValues)
print("\neAddresses results: ")
start = 0
for i in range(numFrames):
end = start + aNumValues[i]
print(" Address - %i, data type - %i, write - %i, values: %s" % \
(aAddresses[i], aDataTypes[i], aWrites[i], str(results[start:end])))
start = end
# Close handle
ljm.close(handle)
Demonstrates how to read the ethernet MAC from a LabJack.
"""
from labjack import ljm
import struct
# Open first found LabJack
handle = ljm.open(ljm.constants.dtANY, ljm.constants.ctANY, "ANY")
#handle = ljm.openS("ANY", "ANY", "ANY")
info = ljm.getHandleInfo(handle)
print("Opened a LabJack with Device type: %i, Connection type: %i,\n" \
"Serial number: %i, IP address: %s, Port: %i,\nMax bytes per MB: %i" % \
(info[0], info[1], info[2], ljm.numberToIP(info[3]), info[4], info[5]))
# Call eAddresses to read the ethernet MAC from the LabJack. Note that we are
# reading a byte array which is the big endian binary representation of the
# 64-bit MAC.
macBytes = ljm.eAddresses(handle, 1, [60020], [ljm.constants.BYTE],
[ljm.constants.READ], [8], [0]*8)
# Convert returned values to integers
macBytes = [int(b) for b in macBytes]
# Convert big endian byte array to a 64-bit unsigned integer value
mac, = struct.unpack(">Q", struct.pack("B"*8, *macBytes))
print("\nEthernet MAC : %i - %s" % (mac, ljm.numberToMAC(mac)))
# Close handle
ljm.close(handle)
