def wx_set_and_amplitude_and_offset(amp=[1.5, 1.5, 1.5, 1.5],
offset=[0., 0., 0.057, -0.061]):
# [0., 0., 0.0105, -0.083]
'''
DESCRIPTION: sets the amplitudes and offsets of each WX channel
'''
instr_addr = get_wx_address()
# Initializing the instrument
inst = tewx.TEWXAwg(instr_addr, paranoia_level=1)
# Setting up amplitudes and offsets
# amp = [amp12, amp12, 1.5, 1.5]
#
for ch_index in range(4):
inst.send_cmd(':INST:SEL {0}'.format(ch_index + 1))
inst.send_cmd(':VOLT {}'.format(amp[ch_index]))
inst.send_cmd(':VOLT:OFFS {}'.format(offset[ch_index]))
# query system error
syst_err = inst.send_query(':SYST:ERR?')
print(syst_err)
inst.close()
#
set_marker_level(which_channel='ch1ch2',
which_marker=2,
marker_voltage_level=1.2)
def wx_initialize():
instr_addr = '128.252.134.119'
# Initializing the instrument
inst = tewx.TEWXAwg(instr_addr, paranoia_level=1)
inst.send_cmd('*CLS') # Clear errors
#inst.send_cmd('*RST') # Reset the device
inst.send_cmd(":FREQ:RAST 1000000001.000000", paranoia_level=1)
inst.send_cmd(":FREQ:RAST 1000000000.000000", paranoia_level=1)
inst.close()
def set_run_mode_continuous():
instr_addr = get_wx_address()
# Initializing the instrument
inst = tewx.TEWXAwg(instr_addr, paranoia_level=1)
#
inst.send_cmd('INIT:CONT:STAT ON')
# query system error
syst_err = inst.send_query(':SYST:ERR?')
print(syst_err)
inst.close()
def wx_initialize():
instr_addr = get_wx_address()
# Initializing the instrument
inst = tewx.TEWXAwg(instr_addr, paranoia_level=1)
inst.send_cmd('*CLS') # Clear errors
#inst.send_cmd('*RST') # Reset the device
inst.send_cmd(":FREQ:RAST 1000000001.000000", paranoia_level=1)
inst.send_cmd(":FREQ:RAST 1000000000.000000", paranoia_level=1)
#
syst_err = inst.send_query(':SYST:ERR?')
print(syst_err)
inst.close()
def set_marker_level(which_channel='ch1ch2',
which_marker=2,
marker_voltage_level=1.2):
#
instr_addr = get_wx_address()
# Initializing the instrument
inst = tewx.TEWXAwg(instr_addr, paranoia_level=1)
if which_channel == 'ch1ch2':
inst.send_cmd(':INST:SEL {0}'.format(0 + 1))
elif which_channel == 'ch3ch4':
inst.send_cmd(':INST:SEL {0}'.format(2 + 1))
inst.send_cmd('MARK:SEL {}'.format(which_marker))
inst.send_cmd('MARK:VOLT:LEV:HIGH {}'.format(marker_voltage_level))
# query system error
syst_err = inst.send_query(':SYST:ERR?')
print(syst_err)
inst.close()
def load_sequence_CSV(self,
instr_addr,
base_name='foo',
file_path=os.getcwd(),
num_offset=0):
'''
DESCRIPTION: loads multi channel INPUT:
OUTPUT:
TODO:
'''
file_length = self.sequence_length
num_steps = self.num_steps
if not file_path.endswith("\\"): file_path += "\\"
print("loading {}".format(file_path))
# Reading the wave data from .npy file
waveforms = [[
None,
] * num_steps for _ in self.channel_list]
for ch_index, _ in enumerate(self.channel_list):
ch_name = "ch" + str(ch_index + 1)
print("loading " + ch_name)
for step_index in range(num_steps):
file_name = file_path + base_name + "_" + ch_name + "_{:d}.csv".format(
step_index + num_offset)
waveforms[ch_index][step_index] = np.loadtxt(file_name,
dtype=int,
delimiter=', ',
usecols=(1, ))
# Initializing the instrument
inst = tewx.TEWXAwg(instr_addr, paranoia_level=1)
inst.send_cmd('*CLS') # Clear errors
inst.send_cmd(
'*RST'
) # Reset the device #need to add several commands to set up device to use markers and other configurations
inst.send_cmd(':OUTP:ALL 0')
seg_quantum = inst.get_dev_property('seg_quantum', 16)
# Setting up the markers
# Downloading the wave data
seg_len = np.ones(num_steps, dtype=np.uint32) * file_length
pseudo_seg_len = num_steps * file_length + (num_steps -
1) * seg_quantum
wav_dat = np.zeros(2 * pseudo_seg_len, 'uint16')
for ch_index, _ in enumerate(self.channel_list):
if ch_index % 2:
continue
offs = 0
for step_index in range(self.num_steps):
wav1 = waveforms[ch_index][step_index]
wav2 = waveforms[ch_index + 1][step_index]
offs = inst.make_combined_wave(wav1,
wav2,
wav_dat,
dest_array_offset=offs,
add_idle_pts=(0 != offs))
# select channel:
inst.send_cmd(':INST:SEL {0}'.format(ch_index + 1))
inst.send_cmd('MARK:SEL 1')
inst.send_cmd('MARK:SOUR USER')
inst.send_cmd('MARK:STAT ON')
inst.send_cmd('MARK:SEL 2')
inst.send_cmd('MARK:SOUR USER')
inst.send_cmd('MARK:STAT ON')
# select user-mode (arbitrary-wave):
inst.send_cmd(':FUNC:MODE FIX')
# delete all segments (just to be sure):
inst.send_cmd(':TRAC:DEL:ALL')
inst.send_cmd('SEQ:DEL:ALL')
# set combined wave-downloading-mode:
inst.send_cmd(':TRAC:MODE COMB')
# define the pseudo segment:
inst.send_cmd(':TRAC:DEF 1,{0}'.format(np.uint32(pseudo_seg_len)))
# select segment 1:
inst.send_cmd(':TRAC:SEL 1')
# download binary data:
inst.send_binary_data(':TRAC:DATA', wav_dat)
# ---------------------------------------------------------------------
# Write the *appropriate* segment-table
# (array of 'uint32' values holding the segments lengths)
# ---------------------------------------------------------------------
inst.send_binary_data(':SEGM:DATA', seg_len)
# Setting up sequence mode
for step in range(1, num_steps + 1):
inst.send_cmd(':SEQ:DEF {},{},1,0'.format(step, step))
inst.send_cmd(':FUNC:MODE SEQ')
inst.send_cmd(':SEQ:ADV STEP')
# Setting up the triggers
inst.send_cmd(':TRIG:SOUR EVEN')
inst.send_cmd(':TRIG:COUN 1')
# Turn channels on:
inst.send_cmd(':INIT:CONT 0')
# Setting up amplitudes and offsets
amp = [1., 1., 1., 1.]
offset = [0., 0., 0., 0.]
for ch_index, _ in enumerate(self.channel_list):
inst.send_cmd(':INST:SEL {0}'.format(ch_index + 1))
inst.send_cmd(':VOLT {}'.format(amp[ch_index]))
inst.send_cmd(':VOLT:OFFS {}'.format(offset[ch_index]))
inst.send_cmd(':INST:COUP:STAT ON')
inst.send_cmd(':OUTP:ALL 1')
# query system error
syst_err = inst.send_query(':SYST:ERR?')
print(syst_err)
inst.close()
