def __init__(self,
roach=None,
roach_name=None,
zdok=0,
gpib_addr=None,
test=False,
dir='.',
now=None,
config=False,
bof=False,
clockrate=None,
snapshot=None):
self.zdok = zdok
self.test = test
self.dir = dir
self.clockrate = clockrate if clockrate is not None else 1500.0
self.config = 0 #config
self.bof = bof
# Removing this check because you may be using ADCCalibrate in a read-only
# mode where gpib is not needed (since it is write-only, TBF)
#if not test and gpib_addr is None:
# raise Exception, "Must specify gpib_addr if ADCCalibrate is not in test mode."
if not test and roach_name is None:
raise Exception, "Must specify Roach if ADCCalibrate is not in test mode."
self.roach_name = roach_name if not test else "noroach"
if not test and roach is None:
self.roach = corr.katcp_wrapper.FpgaClient(self.roach_name)
time.sleep(3)
if not self.roach.is_connected():
raise Exception, "%s did not work" % self.roach_name
else:
self.roach = roach
self.now = datetime.now() if now is None else now
self.time_frmt = '%Y-%m-%d-%H%M%S'
self.current_time = self.now.strftime(self.time_frmt)
#self.set_file_label()
# helper classes
#self.gpib = GPIB(gpib_addr, test = test)
self.spi = SPI(zdok=zdok, test=test, roach=self.roach)
self.adc = AdcSnapshot(zdok=zdok,
snapshot=snapshot,
test=test,
roach=self.roach,
clockrate=self.clockrate)
# higher-level classes
self.ogp = OGP(zdok=zdok,
spi=self.spi,
adc=self.adc,
roach_name=roach_name,
clockrate=self.clockrate,
now=now,
dir=dir)
self.inl = INL(zdok=zdok,
spi=self.spi,
roach_name=roach_name,
now=now,
dir=dir)
self.mmcm = MMCM(zdok=zdok, spi=self.spi, adc=self.adc)
self.configFile = "%s-adc.conf" % roach_name
self.configPath = "%s/%s" % (dir, self.configFile)
#self.cf = ADCConfFile(self.configPath)
self.n_cores = 4
self.cores = range(1, self.n_cores + 1)
#self.clockrate = 1500.0
self.samp_freq = 2 * self.clockrate
# file prefixes
self.post_mmcm_ramp_check_name = "post_mmcm_ramp_check"
self.post_ramp_check_raw_name = "post_ramp_check_raw"
self.raw_startup_name = "raw_startup"
self.loaded_files = []
class ADCCalibrate:
"""
This is a high-level class responsible for the calibration
of the two ADC cards (zdoks) in each of Vegas's Roach 2 boards.
It may interact with the user, and leverages a suite of lower
level helper classes.
"""
def __init__(self,
roach=None,
roach_name=None,
zdok=0,
gpib_addr=None,
test=False,
dir='.',
now=None,
config=False,
bof=False,
clockrate=None,
snapshot=None):
self.zdok = zdok
self.test = test
self.dir = dir
self.clockrate = clockrate if clockrate is not None else 1500.0
self.config = 0 #config
self.bof = bof
# Removing this check because you may be using ADCCalibrate in a read-only
# mode where gpib is not needed (since it is write-only, TBF)
#if not test and gpib_addr is None:
# raise Exception, "Must specify gpib_addr if ADCCalibrate is not in test mode."
if not test and roach_name is None:
raise Exception, "Must specify Roach if ADCCalibrate is not in test mode."
self.roach_name = roach_name if not test else "noroach"
if not test and roach is None:
self.roach = corr.katcp_wrapper.FpgaClient(self.roach_name)
time.sleep(3)
if not self.roach.is_connected():
raise Exception, "%s did not work" % self.roach_name
else:
self.roach = roach
self.now = datetime.now() if now is None else now
self.time_frmt = '%Y-%m-%d-%H%M%S'
self.current_time = self.now.strftime(self.time_frmt)
#self.set_file_label()
# helper classes
#self.gpib = GPIB(gpib_addr, test = test)
self.spi = SPI(zdok=zdok, test=test, roach=self.roach)
self.adc = AdcSnapshot(zdok=zdok,
snapshot=snapshot,
test=test,
roach=self.roach,
clockrate=self.clockrate)
# higher-level classes
self.ogp = OGP(zdok=zdok,
spi=self.spi,
adc=self.adc,
roach_name=roach_name,
clockrate=self.clockrate,
now=now,
dir=dir)
self.inl = INL(zdok=zdok,
spi=self.spi,
roach_name=roach_name,
now=now,
dir=dir)
self.mmcm = MMCM(zdok=zdok, spi=self.spi, adc=self.adc)
self.configFile = "%s-adc.conf" % roach_name
self.configPath = "%s/%s" % (dir, self.configFile)
#self.cf = ADCConfFile(self.configPath)
self.n_cores = 4
self.cores = range(1, self.n_cores + 1)
#self.clockrate = 1500.0
self.samp_freq = 2 * self.clockrate
# file prefixes
self.post_mmcm_ramp_check_name = "post_mmcm_ramp_check"
self.post_ramp_check_raw_name = "post_ramp_check_raw"
self.raw_startup_name = "raw_startup"
self.loaded_files = []
def set_zdok(self, zdok):
# Note: this is zdok - or ADC ('0' or '1') that
# the lower level classes interact with. In this
# upper level class we sometimes see zdok == '2',
# which means "work on both '0' and '1'"
# Pass it down
self.spi.set_zdok(zdok)
self.adc.set_zdok(zdok)
self.ogp.set_zdok(zdok)
self.inl.set_zdok(zdok)
self.mmcm.set_zdok(zdok)
# self.set_file_label()
def set_clockrate(self, clockrate):
self.adc.set_clockrate(clockrate)
self.ogp.set_clockrate(clockrate)
def set_freq(self, freq):
self.gpib.freq = freq
def set_ampl(self, ampl):
self.gpib.ampl = ampl
def get_check_filename(self, title, zdoks):
return "%s/%s_%s_zs%d_%s" % (self.dir, title, self.roach_name, zdoks,
self.current_time)
#def set_file_label(self):
# self.file_label = "_%s_z%d_%s" % (self.roach_name
# , self.zdok
# , self.current_time)
#def get_post_ramp_check_raw_filename(self):
# return "post_ramp_check_raw%s" % self.file_label
def user_input(self, prompt):
prompt = "%s (Y/N)" % prompt
logger.debug(prompt)
response = raw_input(prompt)
logger.debug("user response: \t%s" % response)
return response in ["Y", "y"]
def load_calibrations(self,
indir=None,
zdoks=None,
types=None,
use_conf=False,
freq=None):
"Loads the most recent ogp, inl calibration files and loads them into the ADC Cards."
# where to find the calibration files?
if indir is None:
var = "YGOR_TELESCOPE"
if not os.environ.has_key(var):
msg = "If directory for calibration files is not given, YGOR_TELESCOPE must be set."
logger.debug(msg)
raise Exception, msg
else:
indir = os.path.join(os.environ[var], "etc/config")
# which zdok (ADC card) to load calibrations into?
if zdoks is None or zdoks == 2:
zdoks = range(2)
elif zdoks == 0 or zdoks == 1:
zdoks = [zdoks]
else:
msg = "Zdoks value must be 0,1,2; unsupported: %d" % zdoks
logger.debug(msg)
raise Exception, msg
# which type of calibration?
allTypes = ['ogp', 'inl']
if types is None:
types = allTypes
else:
if not all([t in allTypes for t in types]):
msg = "Types %s not in %s" % (types, allTypes)
logger.debug(msg)
raise Exception, msg
if use_conf and freq is None:
msg = "Must specify freq (MHz) if .conf file is used for loading calibrations."
logger.debug(msg)
raise Exception, msg
if use_conf:
self.load_calibrations_from_conf(indir, zdoks, types, freq)
else:
# go through and find the most recent of each type
# of file needed
#example file: ogp_noroach_z0_2014-04-24-090838
self.loaded_files = []
for type in types:
for zdok in zdoks:
ext = "" if type == 'ogp' else ".meas"
base_name = "%s_%s_z%s_*%s" % (type, self.roach_name, zdok,
ext)
# Rely on the timestamp at the end of the file name to make sure we
# get the most recent file
files = sorted([
f for f in os.listdir(indir)
if fnmatch.fnmatch(f, base_name)
],
reverse=True)
if len(files) > 0:
f = "%s/%s" % (indir, files[0])
if type == 'ogp':
self.ogp.load_from_file(f, zdok=zdok)
else:
self.inl.load_from_file(f, zdok=zdok)
logger.info("Loading file for calibration: %s" % f)
self.loaded_files.append(f)
else:
msg = "load_calibrations: Could not find files in %s matching pattern %s" % (
indir, base_name)
logger.debug(msg)
raise Exception, msg
def load_calibrations_from_conf(self, indir, zdoks, types, freq):
"Load calibrations from the <roach>-adc.conf file found in given directory."
filename = "%s/%s" % (indir, self.configFile)
self.cf.read_file(filename)
for type in types:
for zdok in zdoks:
if type == 'ogp':
self.ogp.set_zdok(zdok)
self.ogp.spi.set_control()
self.ogp.set_offsets(self.cf.get_ogp_offsets(freq, zdok))
self.ogp.set_gains(self.cf.get_ogp_gains(freq, zdok))
self.ogp.set_phases(self.cf.get_ogp_phases(freq, zdok))
elif type == 'inl':
self.inl.set_inls(self.cf.get_inls(zdok))
def do_ogp(self, zdoks, freq, n_trails):
"Handles single zdok, or both"
if zdoks == 2:
#self.gpib.set_freq(freq)
self.do_ogp(0, freq, n_trails)
self.do_ogp(1, freq, n_trails)
elif zdoks != 1 and zdoks != 0:
logger.error("ZDOK " + str(zdoks) +
" is not a valid input, aborting...")
else:
#self.gpib.set_freq(freq)
self.ogp.do_ogp(zdoks, freq, n_trails)
if self.config:
self.cf.write_ogps(self.clockrate * 1e6, zdoks, self.ogp.ogps)
self.cf.write_to_file()
def do_inl(self, zdoks):
"Handles single zdok, or both"
if zdoks == 2:
self.do_inl(0)
self.do_inl(1)
elif zdoks != 1 and zdoks != 0:
logger.error("ZDOK " + str(zdoks) +
" is not a valid input, aborting...")
else:
self.inl.do_inl(zdoks)
if self.config:
self.cf.write_inls(zdoks, self.inl.inls)
self.cf.write_to_file()
def do_mmcm(self, zdok):
"Handles single zdok, or both"
if zdok == 2:
self.do_mmcm(0)
self.do_mmcm(1)
elif zdok == 1 or zdok == 0:
logger.info("doing MMCM calibration for zdok " + str(zdok))
self.mmcm.set_zdok(zdok)
opt, g = self.mmcm.calibrate_mmcm_phase()
logger.debug("MMCM (Optimal Phase, [Glitches]) for zdok " +
str(zdok) + " : " + str((opt, g)))
if self.config:
self.cf.write_mmcms(self.bof, self.clockrate * 1e6, zdok, opt)
self.cf.write_to_file()
else:
logger.error("ZDOK " + str(zdok) + " is not a valid input")
def gpib_test(self, zdok, freq, ampl, manual=True):
logger.info("Checking if the synthesizer is connected correctly...")
#if self.gpib is None:
# logger.info('Initializing the synthesizer...')
# try:
# with time_limit(15):
# self.gpib = GPIB(self.freq, self.ampl)
# except TimeoutException, msg:
# to_continue = 'N'
# logger.error("Time out trying to connect to the synthesizer at " \
# + addr+ "...aborting...")
# time.sleep(2)
logger.debug("ampl " + str(ampl))
logger.debug("test_freq " + str(freq))
self.gpib.set_freq(freq)
self.gpib.set_ampl(ampl)
if manual:
self.check_raw(zdok, save=False)
self.check_spec(zdok, save=False)
tprompt = "Does the system look OK so far, and you wish to continue?"
to_continue = self.user_input(tprompt)
else:
to_continue = True #'Y'
return to_continue
def get_ramp(self, zdok, set_mode=True):
self.set_zdok(zdok)
if set_mode:
self.spi.set_test_mode()
else:
print "Getting Ramp WITHOUT setting to test mode!"
snap_name = "adcsnap%s" % zdok #self.get_snap_name(zdok)
a, b, c, d = self.adc.get_test_vector([snap_name],
man_trig=True,
wait_period=2)
if set_mode:
self.spi.unset_test_mode()
return a, b, c, d
def check_ramp(self,
zdok,
save=True,
view=True,
filename=None,
set_mode=True): #"ramp"):
filename = filename if filename is not None else self.get_check_filename(
self.post_mmcm_ramp_check_name, zdok)
# get test vectors
logmsg = "Checking ramp test... zdok: " + str(zdok) + " save:" + str(
save)
logmsg += " filename: " + str(filename) + "\n"
logger.info(logmsg)
if zdok == 2:
a0, b0, c0, d0 = self.get_ramp(0, set_mode=set_mode)
a1, b1, c1, d1 = self.get_ramp(1, set_mode=set_mode)
elif zdok == 0:
a0, b0, c0, d0 = self.get_ramp(0, set_mode=set_mode)
a1 = np.zeros(len(a0))
b1 = np.zeros(len(b0))
c1 = np.zeros(len(c0))
d1 = np.zeros(len(d0))
elif zdok == 1:
a1, b1, c1, d1 = self.get_ramp(1, set_mode=set_mode)
a0 = np.zeros(len(a1))
b0 = np.zeros(len(b1))
c0 = np.zeros(len(c1))
d0 = np.zeros(len(d1))
else:
logmsg = "Invalid input for zdok: " + str(zdok) + " aborting..."
logger.error(logmsg)
# plot stuff
f = figure()
ax0 = f.add_subplot(211)
ax1 = f.add_subplot(212)
ax0.plot(a0, '-o', b0, '-d', c0, '-^', d0, '-s')
ax1.plot(a1, '-o', b1, '-d', c1, '-^', d1, '-s')
ax0.set_title('ADC0')
ax1.set_title('ADC1')
f.suptitle(filename)
if save:
logger.debug("Saving file :%s" % (filename + '.png'))
savefig(filename + '.png', dpi=300)
if view:
show()
else:
close()
logger.debug(
"Now check raw data to make sure ADCs are back in data capturing mode..."
)
# make sure the ADCs are succesfully set back to regular data capturing mode
#self.check_raw(save=save, filename="post_ramp_check_raw" + timestamp)
fn = self.get_check_filename(self.post_ramp_check_raw_name, zdok)
self.check_raw(zdok, save=save, view=view, filename=fn)
def check_raw(self, zdok, save=True, view=True, filename=None):
filename = filename if filename is not None else self.get_check_filename(
self.raw_startup_name, zdok)
# get the data
logmsg = "Checking raw data... zdok: " + str(zdok) + " save:" + str(
save)
logmsg += " filename: " + str(filename)
logger.info(logmsg)
if zdok == 2:
raw0 = self.adc.get_raw(0)
raw1 = self.adc.get_raw(1)
elif zdok == 0:
raw0 = self.adc.get_raw(0)
raw1 = np.zeros(len(raw0))
elif zdok == 1:
raw1 = self.adc.get_raw(1)
raw0 = np.zeros(len(raw1))
else:
logmsg = "Invalid input for zdok: " + str(zdok) + " aborting..."
logger.error(logmsg)
m0 = max(np.abs(raw0))
m1 = max(np.abs(raw1))
if m0 >= 128 or m1 >= 128:
logger.warning(
"Power too high, clipping might be occurring...please check")
# plot stuff
f = figure()
ax0 = f.add_subplot(231)
ax1 = f.add_subplot(234)
ax0.plot(raw0, '-o')
ax0.set_title('ADC0')
ax1.plot(raw1, '-d')
ax1.set_title('ADC1')
ax00 = f.add_subplot(232)
ax10 = f.add_subplot(235)
ax00.plot(raw0[0:int(len(raw0) / 100)], '-o')
ax00.set_title('ADC0 - Zoom 100x')
ax10.plot(raw1[0:int(len(raw0) / 100)], '-d')
ax10.set_title('ADC1 - Zoom 100x')
ax01 = f.add_subplot(233)
ax11 = f.add_subplot(236)
ax01.plot(raw0[0:int(len(raw0) / 20)], '-o')
ax01.set_title('ADC0 - Zoom 20x')
ax11.plot(raw1[0:int(len(raw0) / 20)], '-d')
ax11.set_title('ADC1 - Zoom 20x')
f.suptitle(filename)
f.text(0.5, 0.04, 'time', ha='center', va='center')
f.text(0.06,
0.5,
'amplitude',
ha='center',
va='center',
rotation='vertical')
if save:
logger.debug("Saving file :%s" % (filename + '.png'))
f.set_size_inches(18, 12)
savefig(filename + '.png', dpi=150)
if view:
show()
else:
close()
return
def check_spec(self,
zdok,
save=True,
view=True,
filename=None): #filename="spec"):
filename = filename if filename is not None else self.get_check_filename(
"spec", zdok)
logmsg = "Checking spectrum... zdok: " + str(zdok) + " save:" + str(
save)
logmsg += " filename: " + str(filename) + "\n"
logger.info(logmsg)
if zdok == 2:
nfr0 = self.adc.get_spec(0)
spikes0 = self.adc.find_spike(nfr0)
nfr1 = self.adc.get_spec(1)
spikes1 = self.adc.find_spike(nfr1)
elif zdok == 0:
nfr0 = self.adc.get_spec(0)
spikes0 = self.adc.find_spike(nfr0)
nfr1 = np.zeros(len(nfr0)) - 1.0
spikes1 = np.array([-1.0])
elif zdok == 1:
nfr1 = self.adc.get_spec(1)
spikes1 = self.adc.find_spike(nfr1)
nfr0 = np.zeros(len(nfr1)) - 1.0
spikes0 = np.array([-1.0])
else:
logmsg = "Invalid input for zdok: " + str(zdok) + " aborting..."
logger.error(logmsg)
nchan = len(nfr0) # this is NOT related to the FPGA design
freqs = np.arange(0, self.clockrate, self.clockrate * 1. / nchan)
logger.debug("Doing " + str(nchan) + " points FFT. ")
logger.debug("Nyquist : " + str(self.clockrate))
logger.debug("Found spikes at %.4fMHz for ADC0" % spikes0)
logger.debug("Found spikes at %.4fMHz for ADC1" % spikes1)
# plot stuff
f = figure()
ax0 = f.add_subplot(211)
ax1 = f.add_subplot(212)
ax0.plot(freqs, 10 * np.log(nfr0))
ax0.annotate('spike ~%.4fMHz' % spikes0[0],
xy=(spikes0[0], 0),
xycoords='data',
xytext=(spikes0[0] + 500, -30),
textcoords='data',
arrowprops=dict(arrowstyle="->", connectionstyle="arc3"),
ha='right',
va='top')
ax0.set_title('ADC0')
ax1y = 10 * np.log(nfr1)
ax1.plot(freqs, ax1y)
ax1.annotate('spike ~%.4fMHz' % spikes1[0],
xy=(spikes1[0], 0),
xycoords='data',
xytext=(spikes1[0] + 500, -30),
textcoords='data',
arrowprops=dict(arrowstyle="->", connectionstyle="arc3"),
ha='right',
va='top')
info_str = ""
if self.gpib.freq is not None:
info_str += "Current input test tone frequency: %.4f" % self.gpib.freq
if self.gpib.ampl is not None:
info_str += "\nCurrent input power level: %.4f" % self.gpib.ampl
ax1.text(450,
min(ax1y) + 20,
info_str,
bbox={
'facecolor': 'yellow',
'alpha': 0.9
})
ax1.set_title('ADC1')
f.suptitle(filename)
f.text(0.5, 0.04, 'frequency (MHz)', ha='center', va='center')
f.text(0.06,
0.5,
'power (dB)',
ha='center',
va='center',
rotation='vertical')
if save:
logger.debug("Saving file :%s" % (filename + '.png'))
savefig(filename + '.png', dpi=300)
if view:
show()
else:
close()
return
def ampl_setup(self, zdok, manual=True, new_ampl=None, check_ampl=False):
ampl = self.gpib.ampl
# User interactions
logmsg = "Changing input power level...current: " + str(ampl)
logger.info(logmsg)
if manual:
tprompt = "Please enter the new Power level (dbM): (press enter to skip)"
new_ampl_raw = raw_input(tprompt)
logger.debug(tprompt)
logger.debug("user input: " + new_ampl_raw)
if new_ampl_raw == "":
logger.debug("Keeping current power level...")
return
else:
new_ampl = float(new_ampl_raw)
# TBF: these limits seem arbitrary
too_low = -15
too_high = 10
if check_ampl and (new_ampl < too_low or new_ampl > too_high):
logmsg = "ampl " + str(
new_ampl) + " too big or too small (range: " + str(
too_low) + "-" + str(too_high) + ")"
logger.error(logmsg)
raise Exception, logmsg
exit()
# Finally, set the new amplitude
logger.debug(" New ampl is: " + str(new_ampl))
ampl = new_ampl
self.gpib.set_ampl(ampl)
time.sleep(2)
if manual:
# Double check?
tprompt = " Check raw ADC data now?" # (Y/N)"
if self.user_input(tprompt):
#logger.debug(tprompt)
#to_check = raw_input(tprompt)
#logger.debug("user input: " + to_check)
#if to_check=='Y' or to_check=='y':
self.check_raw(zdok, save=False, view=True)
# Add notes to logger
tprompt = "Does the raw data look okay? If not, "\
+ "please briefly describe the problem here "\
+ "(or press enter to proceed): "
notes = raw_input(tprompt)
logger.debug(notes)
#if not isempty(notes):
if len(notes) > 0:
logger.warning(notes)
def freq_setup(self, zdok, manual=True, freq=None):
#global test_freq
test_freq = freq if freq is not None else self.gpib.freq
logmsg = "Changing input frequency...current: " + str(test_freq)
logger.info(logmsg)
if manual:
tprompt = "Please enter the new test frequency (MHz): (press enter to skip)"
logger.debug(tprompt)
freq_raw = raw_input(tprompt)
logger.debug("user input: " + freq_raw)
if freq_raw == "":
logger.debug("Keeping current frequency...")
return
else:
freq = float(freq_raw)
if freq < 0 or freq > 1500:
logmsg = "freq " + str(freq) + " too big or too small"
logger.error(logmsg)
raise Exception, logmsg
exit()
logger.debug(" New frequency is: " + str(freq))
test_freq = freq
self.gpib.set_freq(test_freq)
time.sleep(2)
if manual:
tprompt = " Check raw ADC data now? (Y/N)"
to_check = raw_input(tprompt)
logger.debug(tprompt)
logger.debug("user input: " + to_check)
if to_check == 'Y' or to_check == 'y':
self.check_raw(zdok, save=False, view=True)
tprompt = "Does the raw data look okay? If not, "\
+ "please briefly describe the problem here "\
+ "(or press enter to proceed): "
notes = raw_input(tprompt)
logger.debug(tprompt)
logger.debug(notes)
logger.warning(notes)
def freq_scan(self, save=True, view=True, filename=None): #"freq_scan"):
filename = filename if filename is not None else self.get_check_filename(
"freq_scan", 2)
test_freq = self.gpib.freq
logger.info("Starting frequency scan (both ADCs)... save: " +
str(save))
# Gather the data
freqs = []
f0 = []
f1 = []
spikes0_arr = []
spikes1_arr = []
rng = 50
for i in range(0, rng):
test_freq = i * 30 + random.random() * 30
logger.debug("freq : " + str(test_freq))
self.gpib.set_freq(test_freq)
time.sleep(2)
nfr0 = self.adc.get_spec(0)
spikes0 = self.adc.find_spike(nfr0)
nfr1 = self.adc.get_spec(1)
spikes1 = self.adc.find_spike(nfr1)
logger.debug("Found spikes at %.4fMHz for ADC0" % spikes0)
logger.debug("Found spikes at %.4fMHz for ADC1" % spikes1)
freqs.append(test_freq)
f0.append(10 * log(nfr0))
f1.append(10 * log(nfr1))
spikes0_arr.append(spikes0)
spikes1_arr.append(spikes1)
# plot it!
f = figure()
ax0 = f.add_subplot(211)
ax1 = f.add_subplot(212)
logger.debug(" Plotting now...")
nchan = len(nfr0) # this is NOT related to the FPGA design
freqs_ind = np.arange(0, self.clockrate, self.clockrate * 1. / nchan)
for i in range(1, rng, 10):
logger.debug(" \ttest_freq: " + str(freqs[i]))
ax0.plot(freqs_ind, f0[i])
ax0.annotate('spike ~%.4fMHz' % spikes0_arr[i][0],
xy=(spikes0_arr[i][0], 0),
xycoords='data',
xytext=(spikes0_arr[i][0] + 500, -1 * i),
textcoords='data',
arrowprops=dict(arrowstyle="->",
connectionstyle="arc3"),
ha='right',
va='top')
logger.debug(" \tannotated spike (ADC0): %.4fMHz" %
spikes0_arr[i][0])
ax1.plot(freqs_ind, f1[i])
ax1.annotate('spike ~%.4fMHz' % spikes1_arr[i][0],
xy=(spikes1_arr[i][0], 0),
xycoords='data',
xytext=(spikes1_arr[i][0] + 500, -1 * i),
textcoords='data',
arrowprops=dict(arrowstyle="->",
connectionstyle="arc3"),
ha='right',
va='top')
logger.debug(" \tannotated spike (ADC1): %.4fMHz" %
spikes1_arr[i][0])
ax0.set_title('ADC0')
ax1.set_title('ADC1')
f.suptitle(filename)
info_str = "Current input power level: %.4f" % self.gpib.ampl
ax1.text(450,
min(f1[0]) + 20,
info_str,
bbox={
'facecolor': 'yellow',
'alpha': 0.9
})
f.text(0.5, 0.04, 'frequency (MHz)', ha='center', va='center')
f.text(0.06,
0.5,
'power (dB)',
ha='center',
va='center',
rotation='vertical')
if save:
logger.debug("Saving file :%s" % (filename + '.png'))
savefig(filename + '.png', dpi=300)
if view:
show()
else:
close()
def __init__(self
, roach = None
, roach_name = None
, zdok = 0
, gpib_addr = None
, test = False
, dir = '.'
, now = None
, config = False
, bof = False
, clockrate = None):
self.zdok = zdok
self.test = test
self.dir = dir
self.clockrate = clockrate if clockrate is not None else 1500.0
self.config = 0 #config
self.bof = bof
# Removing this check because you may be using ADCCalibrate in a read-only
# mode where gpib is not needed (since it is write-only, TBF)
#if not test and gpib_addr is None:
# raise Exception, "Must specify gpib_addr if ADCCalibrate is not in test mode."
if not test and roach_name is None:
raise Exception, "Must specify Roach if ADCCalibrate is not in test mode."
self.roach_name = roach_name if not test else "noroach"
if not test and roach is None:
self.roach = corr.katcp_wrapper.FpgaClient(self.roach_name)
time.sleep(3)
if not self.roach.is_connected():
raise Exception, "%s did not work" % self.roach_name
else:
self.roach = roach
self.now = datetime.now() if now is None else now
self.time_frmt = '%Y-%m-%d-%H%M%S'
self.current_time = self.now.strftime(self.time_frmt)
#self.set_file_label()
# helper classes
self.gpib = GPIB(gpib_addr, test = test)
self.spi = SPI(zdok = zdok, test = test, roach = self.roach)
self.adc = AdcSnapshot(zdok = zdok, test = test, roach = self.roach, clockrate = self.clockrate)
# higher-level classes
self.ogp = OGP(zdok = zdok
, spi = self.spi
, adc = self.adc
, roach_name = roach_name
, clockrate = self.clockrate
, now = now
, dir = dir)
self.inl = INL(zdok = zdok
, spi = self.spi
, roach_name = roach_name
, now = now
, dir = dir)
self.mmcm = MMCM(zdok = zdok, spi = self.spi, adc = self.adc)
self.configFile = "%s-adc.conf" % roach_name
self.configPath = "%s/%s" % (dir, self.configFile)
self.cf = ADCConfFile(self.configPath)
self.n_cores = 4
self.cores = range(1,self.n_cores+1)
#self.clockrate = 1500.0
self.samp_freq = 2*self.clockrate
# file prefixes
self.post_mmcm_ramp_check_name = "post_mmcm_ramp_check"
self.post_ramp_check_raw_name = "post_ramp_check_raw"
self.raw_startup_name = "raw_startup"
self.loaded_files = []
if __name__ == "__main__":
#myHandlers.timestamp = "_"
import corr
import time
from SPI import SPI
from AdcSnapshot import AdcSnapshot
#logging.config.fileConfig('adc5g_logging_config.conf')
#logger = logging.getLogger('adc5gLogging')
#logger.info("Started")
roach_name = "srbsr2-1"
roach = corr.katcp_wrapper.FpgaClient(roach_name)
time.sleep(3)
print "connected: ", roach.is_connected()
#bof = 'h1k_ver105_2013_Dec_02_1551.bof'
#roach.progdev(bof)
#time.sleep(5)
test = False
spi = SPI(roach=roach, test=test)
adc = AdcSnapshot(roach=roach, test=test)
mmcm = MMCM(spi=spi, adc=adc, test=test)
mmcm.calibrate_mmcm_phase()
class ADCCalibrate:
"""
This is a high-level class responsible for the calibration
of the two ADC cards (zdoks) in each of Vegas's Roach 2 boards.
It may interact with the user, and leverages a suite of lower
level helper classes.
"""
def __init__(self
, roach = None
, roach_name = None
, zdok = 0
, gpib_addr = None
, test = False
, dir = '.'
, now = None
, config = False
, bof = False
, clockrate = None):
self.zdok = zdok
self.test = test
self.dir = dir
self.clockrate = clockrate if clockrate is not None else 1500.0
self.config = 0 #config
self.bof = bof
# Removing this check because you may be using ADCCalibrate in a read-only
# mode where gpib is not needed (since it is write-only, TBF)
#if not test and gpib_addr is None:
# raise Exception, "Must specify gpib_addr if ADCCalibrate is not in test mode."
if not test and roach_name is None:
raise Exception, "Must specify Roach if ADCCalibrate is not in test mode."
self.roach_name = roach_name if not test else "noroach"
if not test and roach is None:
self.roach = corr.katcp_wrapper.FpgaClient(self.roach_name)
time.sleep(3)
if not self.roach.is_connected():
raise Exception, "%s did not work" % self.roach_name
else:
self.roach = roach
self.now = datetime.now() if now is None else now
self.time_frmt = '%Y-%m-%d-%H%M%S'
self.current_time = self.now.strftime(self.time_frmt)
#self.set_file_label()
# helper classes
self.gpib = GPIB(gpib_addr, test = test)
self.spi = SPI(zdok = zdok, test = test, roach = self.roach)
self.adc = AdcSnapshot(zdok = zdok, test = test, roach = self.roach, clockrate = self.clockrate)
# higher-level classes
self.ogp = OGP(zdok = zdok
, spi = self.spi
, adc = self.adc
, roach_name = roach_name
, clockrate = self.clockrate
, now = now
, dir = dir)
self.inl = INL(zdok = zdok
, spi = self.spi
, roach_name = roach_name
, now = now
, dir = dir)
self.mmcm = MMCM(zdok = zdok, spi = self.spi, adc = self.adc)
self.configFile = "%s-adc.conf" % roach_name
self.configPath = "%s/%s" % (dir, self.configFile)
self.cf = ADCConfFile(self.configPath)
self.n_cores = 4
self.cores = range(1,self.n_cores+1)
#self.clockrate = 1500.0
self.samp_freq = 2*self.clockrate
# file prefixes
self.post_mmcm_ramp_check_name = "post_mmcm_ramp_check"
self.post_ramp_check_raw_name = "post_ramp_check_raw"
self.raw_startup_name = "raw_startup"
self.loaded_files = []
def set_zdok(self, zdok):
# Note: this is zdok - or ADC ('0' or '1') that
# the lower level classes interact with. In this
# upper level class we sometimes see zdok == '2',
# which means "work on both '0' and '1'"
# Pass it down
self.spi.set_zdok(zdok)
self.adc.set_zdok(zdok)
self.ogp.set_zdok(zdok)
self.inl.set_zdok(zdok)
self.mmcm.set_zdok(zdok)
# self.set_file_label()
def set_clockrate(self, clockrate):
self.adc.set_clockrate(clockrate)
self.ogp.set_clockrate(clockrate)
def set_freq(self, freq):
self.gpib.freq = freq
def set_ampl(self, ampl):
self.gpib.ampl = ampl
def get_check_filename(self, title, zdoks):
return "%s/%s_%s_zs%d_%s" % (self.dir
, title
, self.roach_name
, zdoks
, self.current_time)
#def set_file_label(self):
# self.file_label = "_%s_z%d_%s" % (self.roach_name
# , self.zdok
# , self.current_time)
#def get_post_ramp_check_raw_filename(self):
# return "post_ramp_check_raw%s" % self.file_label
def user_input(self, prompt):
prompt = "%s (Y/N)" % prompt
logger.debug(prompt)
response = raw_input(prompt)
logger.debug("user response: \t%s" % response)
return response in ["Y", "y"]
def load_calibrations(self
, indir = None
, zdoks = None
, types = None
, use_conf = False
, freq = None):
"Loads the most recent ogp, inl calibration files and loads them into the ADC Cards."
# where to find the calibration files?
if indir is None:
var = "YGOR_TELESCOPE"
if not os.environ.has_key(var):
msg = "If directory for calibration files is not given, YGOR_TELESCOPE must be set."
logger.debug(msg)
raise Exception, msg
else:
indir = os.path.join(os.environ[var], "etc/config")
# which zdok (ADC card) to load calibrations into?
if zdoks is None or zdoks == 2:
zdoks = range(2)
elif zdoks == 0 or zdoks == 1:
zdoks = [zdoks]
else:
msg = "Zdoks value must be 0,1,2; unsupported: %d" % zdoks
logger.debug(msg)
raise Exception, msg
# which type of calibration?
allTypes = ['ogp', 'inl']
if types is None:
types = allTypes
else:
if not all([t in allTypes for t in types]):
msg = "Types %s not in %s" % (types, allTypes)
logger.debug(msg)
raise Exception, msg
if use_conf and freq is None:
msg = "Must specify freq (MHz) if .conf file is used for loading calibrations."
logger.debug(msg)
raise Exception, msg
if use_conf:
self.load_calibrations_from_conf(indir, zdoks, types, freq)
else:
# go through and find the most recent of each type
# of file needed
#example file: ogp_noroach_z0_2014-04-24-090838
self.loaded_files = []
for type in types:
for zdok in zdoks:
ext = "" if type == 'ogp' else ".meas"
base_name = "%s_%s_z%s_*%s" % (type, self.roach_name, zdok, ext)
# Rely on the timestamp at the end of the file name to make sure we
# get the most recent file
files = sorted([f for f in os.listdir(indir) if fnmatch.fnmatch(f, base_name)]
, reverse = True)
if len(files) > 0:
f = "%s/%s" % (indir, files[0])
if type == 'ogp':
self.ogp.load_from_file(f, zdok = zdok)
else:
self.inl.load_from_file(f, zdok = zdok)
logger.info("Loading file for calibration: %s" % f)
self.loaded_files.append(f)
else:
msg = "load_calibrations: Could not find files in %s matching pattern %s" % (indir, base_name)
logger.debug(msg)
raise Exception, msg
def load_calibrations_from_conf(self, indir, zdoks, types, freq):
"Load calibrations from the <roach>-adc.conf file found in given directory."
filename = "%s/%s" % (indir, self.configFile)
self.cf.read_file(filename)
for type in types:
for zdok in zdoks:
if type == 'ogp':
self.ogp.set_zdok(zdok)
self.ogp.spi.set_control()
self.ogp.set_offsets(self.cf.get_ogp_offsets(freq, zdok))
self.ogp.set_gains( self.cf.get_ogp_gains(freq, zdok))
self.ogp.set_phases( self.cf.get_ogp_phases(freq, zdok))
elif type == 'inl':
self.inl.set_inls(self.cf.get_inls(zdok))
def do_ogp(self, zdoks, freq, n_trails):
"Handles single zdok, or both"
if zdoks==2:
self.gpib.set_freq(freq)
self.do_ogp(0, freq, n_trails)
self.do_ogp(1, freq, n_trails)
elif zdoks!=1 and zdoks!=0:
logger.error("ZDOK " + str(zdoks) + " is not a valid input, aborting...")
else:
self.gpib.set_freq(freq)
self.ogp.do_ogp(zdoks, freq, n_trails)
if self.config:
self.cf.write_ogps(self.clockrate*1e6, zdoks, self.ogp.ogps)
self.cf.write_to_file()
def do_inl(self, zdoks):
"Handles single zdok, or both"
if zdoks==2:
self.do_inl(0)
self.do_inl(1)
elif zdoks!=1 and zdoks!=0:
logger.error("ZDOK " + str(zdoks) + " is not a valid input, aborting...")
else:
self.inl.do_inl(zdoks)
if self.config:
self.cf.write_inls(zdoks, self.inl.inls)
self.cf.write_to_file()
def do_mmcm(self, zdok):
"Handles single zdok, or both"
if zdok==2:
self.do_mmcm(0)
self.do_mmcm(1)
elif zdok==1 or zdok==0:
logger.info("doing MMCM calibration for zdok " + str(zdok))
self.mmcm.set_zdok(zdok)
opt, g = self.mmcm.calibrate_mmcm_phase()
logger.debug("MMCM (Optimal Phase, [Glitches]) for zdok " + str(zdok) + " : " + str((opt, g)))
if self.config:
self.cf.write_mmcms(self.bof, self.clockrate*1e6, zdok, opt)
self.cf.write_to_file()
else:
logger.error("ZDOK " + str(zdok) + " is not a valid input")
def gpib_test(self, zdok, freq, ampl, manual=True):
logger.info("Checking if the synthesizer is connected correctly...")
#if self.gpib is None:
# logger.info('Initializing the synthesizer...')
# try:
# with time_limit(15):
# self.gpib = GPIB(self.freq, self.ampl)
# except TimeoutException, msg:
# to_continue = 'N'
# logger.error("Time out trying to connect to the synthesizer at " \
# + addr+ "...aborting...")
# time.sleep(2)
logger.debug("ampl " + str(ampl))
logger.debug("test_freq " + str(freq))
self.gpib.set_freq(freq)
self.gpib.set_ampl(ampl)
if manual:
self.check_raw(zdok, save=False)
self.check_spec(zdok, save=False)
tprompt = "Does the system look OK so far, and you wish to continue?"
to_continue = self.user_input(tprompt)
else:
to_continue = True #'Y'
return to_continue
def get_ramp(self, zdok, set_mode = True):
self.set_zdok(zdok)
if set_mode:
self.spi.set_test_mode()
else:
print "Getting Ramp WITHOUT setting to test mode!"
snap_name = "adcsnap%s" % zdok #self.get_snap_name(zdok)
a, b, c, d = self.adc.get_test_vector([snap_name], man_trig=True, wait_period=2)
if set_mode:
self.spi.unset_test_mode()
return a, b, c, d
def check_ramp(self, zdok, save=True, view=True, filename=None, set_mode = True): #"ramp"):
filename = filename if filename is not None else self.get_check_filename(self.post_mmcm_ramp_check_name, zdok)
# get test vectors
logmsg = "Checking ramp test... zdok: "+str(zdok)+" save:" + str(save)
logmsg += " filename: " + str(filename) + "\n"
logger.info(logmsg)
if zdok==2:
a0, b0, c0, d0 = self.get_ramp(0, set_mode = set_mode)
a1, b1, c1, d1 = self.get_ramp(1, set_mode = set_mode)
elif zdok==0:
a0, b0, c0, d0 = self.get_ramp(0, set_mode = set_mode)
a1 = np.zeros(len(a0))
b1 = np.zeros(len(b0))
c1 = np.zeros(len(c0))
d1 = np.zeros(len(d0))
elif zdok==1:
a1, b1, c1, d1 = self.get_ramp(1, set_mode = set_mode)
a0 = np.zeros(len(a1))
b0 = np.zeros(len(b1))
c0 = np.zeros(len(c1))
d0 = np.zeros(len(d1))
else:
logmsg = "Invalid input for zdok: "+ str(zdok) + " aborting..."
logger.error(logmsg)
# plot stuff
f = figure()
ax0 = f.add_subplot(211)
ax1 = f.add_subplot(212)
ax0.plot(a0, '-o', b0, '-d', c0, '-^', d0, '-s')
ax1.plot(a1, '-o', b1, '-d', c1, '-^', d1, '-s')
ax0.set_title('ADC0')
ax1.set_title('ADC1')
f.suptitle(filename)
if save:
logger.debug("Saving file :%s"%(filename+'.png'))
savefig(filename+'.png', dpi=300)
if view:
show()
else:
close()
logger.debug("Now check raw data to make sure ADCs are back in data capturing mode...")
# make sure the ADCs are succesfully set back to regular data capturing mode
#self.check_raw(save=save, filename="post_ramp_check_raw" + timestamp)
fn = self.get_check_filename(self.post_ramp_check_raw_name, zdok)
self.check_raw(zdok, save=save, view=view, filename=fn)
def check_raw(self, zdok, save=True, view=True, filename=None):
filename = filename if filename is not None else self.get_check_filename(self.raw_startup_name, zdok)
# get the data
logmsg = "Checking raw data... zdok: "+str(zdok)+" save:" + str(save)
logmsg += " filename: " + str(filename)
logger.info(logmsg)
if zdok == 2:
raw0 = self.adc.get_raw(0)
raw1 = self.adc.get_raw(1)
elif zdok == 0:
raw0 = self.adc.get_raw(0)
raw1 = np.zeros(len(raw0))
elif zdok == 1:
raw1 = self.adc.get_raw(1)
raw0 = np.zeros(len(raw1))
else:
logmsg = "Invalid input for zdok: "+ str(zdok) + " aborting..."
logger.error(logmsg)
m0 = max(np.abs(raw0))
m1 = max(np.abs(raw1))
if m0>=128 or m1>=128:
logger.warning("Power too high, clipping might be occurring...please check")
# plot stuff
f = figure()
ax0 = f.add_subplot(231)
ax1 = f.add_subplot(234)
ax0.plot(raw0, '-o')
ax0.set_title('ADC0')
ax1.plot(raw1, '-d')
ax1.set_title('ADC1')
ax00 = f.add_subplot(232)
ax10 = f.add_subplot(235)
ax00.plot(raw0[0:int(len(raw0)/100)], '-o')
ax00.set_title('ADC0 - Zoom 100x')
ax10.plot(raw1[0:int(len(raw0)/100)], '-d')
ax10.set_title('ADC1 - Zoom 100x')
ax01 = f.add_subplot(233)
ax11 = f.add_subplot(236)
ax01.plot(raw0[0:int(len(raw0)/20)], '-o')
ax01.set_title('ADC0 - Zoom 20x')
ax11.plot(raw1[0:int(len(raw0)/20)], '-d')
ax11.set_title('ADC1 - Zoom 20x')
f.suptitle(filename)
f.text(0.5, 0.04, 'time', ha='center', va='center')
f.text(0.06, 0.5, 'amplitude', ha='center', va='center', rotation='vertical')
if save:
logger.debug("Saving file :%s"%(filename+'.png'))
f.set_size_inches(18, 12)
savefig(filename+'.png', dpi=150)
if view:
show()
else:
close()
return
def check_spec(self, zdok, save=True, view=True, filename = None): #filename="spec"):
filename = filename if filename is not None else self.get_check_filename("spec", zdok)
logmsg = "Checking spectrum... zdok: "+str(zdok)+" save:" + str(save)
logmsg += " filename: " + str(filename) + "\n"
logger.info(logmsg)
if zdok == 2:
nfr0 = self.adc.get_spec(0)
spikes0 = self.adc.find_spike(nfr0)
nfr1 =self.adc.get_spec(1)
spikes1 = self.adc.find_spike(nfr1)
elif zdok == 0:
nfr0 = self.adc.get_spec(0)
spikes0 = self.adc.find_spike(nfr0)
nfr1 = np.zeros(len(nfr0)) - 1.0
spikes1 = np.array([-1.0])
elif zdok == 1:
nfr1 = self.adc.get_spec(1)
spikes1 = self.adc.find_spike(nfr1)
nfr0 = np.zeros(len(nfr1)) - 1.0
spikes0 = np.array([-1.0])
else:
logmsg = "Invalid input for zdok: "+ str(zdok) + " aborting..."
logger.error(logmsg)
nchan = len(nfr0) # this is NOT related to the FPGA design
freqs = np.arange(0, self.clockrate, self.clockrate*1./nchan)
logger.debug("Doing " + str(nchan) + " points FFT. ")
logger.debug("Nyquist : " + str(self.clockrate) )
logger.debug("Found spikes at %.4fMHz for ADC0"%spikes0)
logger.debug("Found spikes at %.4fMHz for ADC1"%spikes1)
# plot stuff
f = figure()
ax0 = f.add_subplot(211)
ax1 = f.add_subplot(212)
ax0.plot(freqs, 10*np.log(nfr0))
ax0.annotate('spike ~%.4fMHz'%spikes0[0], xy=(spikes0[0], 0), xycoords='data',
xytext=(spikes0[0]+500,-30), textcoords='data',
arrowprops=dict(arrowstyle="->",connectionstyle="arc3"),
ha='right', va='top')
ax0.set_title('ADC0')
ax1y = 10*np.log(nfr1)
ax1.plot(freqs, ax1y)
ax1.annotate('spike ~%.4fMHz'%spikes1[0], xy=(spikes1[0], 0), xycoords='data',
xytext=(spikes1[0]+500,-30), textcoords='data',
arrowprops=dict(arrowstyle="->",connectionstyle="arc3"),
ha='right', va='top')
info_str = ""
if self.gpib.freq is not None:
info_str += "Current input test tone frequency: %.4f"%self.gpib.freq
if self.gpib.ampl is not None:
info_str += "\nCurrent input power level: %.4f"%self.gpib.ampl
ax1.text(450, min(ax1y)+20, info_str, bbox={'facecolor':'yellow', 'alpha':0.9})
ax1.set_title('ADC1')
f.suptitle(filename)
f.text(0.5, 0.04, 'frequency (MHz)', ha='center', va='center')
f.text(0.06, 0.5, 'power (dB)', ha='center', va='center', rotation='vertical')
if save:
logger.debug("Saving file :%s"%(filename+'.png'))
savefig(filename+'.png', dpi=300)
if view:
show()
else:
close()
return
def ampl_setup(self, zdok, manual=True, new_ampl=None, check_ampl=False):
ampl = self.gpib.ampl
# User interactions
logmsg = "Changing input power level...current: " + str(ampl)
logger.info(logmsg)
if manual:
tprompt = "Please enter the new Power level (dbM): (press enter to skip)"
new_ampl_raw = raw_input(tprompt)
logger.debug(tprompt)
logger.debug("user input: " + new_ampl_raw)
if new_ampl_raw=="":
logger.debug("Keeping current power level...")
return
else:
new_ampl = float(new_ampl_raw)
# TBF: these limits seem arbitrary
too_low = -15
too_high = 10
if check_ampl and (new_ampl<too_low or new_ampl>too_high):
logmsg = "ampl " + str(new_ampl) + " too big or too small (range: " + str(too_low) + "-" + str(too_high) + ")"
logger.error(logmsg)
raise Exception, logmsg
exit()
# Finally, set the new amplitude
logger.debug(" New ampl is: " + str(new_ampl))
ampl = new_ampl
self.gpib.set_ampl(ampl)
time.sleep(2)
if manual:
# Double check?
tprompt = " Check raw ADC data now?" # (Y/N)"
if self.user_input(tprompt):
#logger.debug(tprompt)
#to_check = raw_input(tprompt)
#logger.debug("user input: " + to_check)
#if to_check=='Y' or to_check=='y':
self.check_raw(zdok, save=False, view=True)
# Add notes to logger
tprompt = "Does the raw data look okay? If not, "\
+ "please briefly describe the problem here "\
+ "(or press enter to proceed): "
notes = raw_input(tprompt)
logger.debug(notes)
#if not isempty(notes):
if len(notes) > 0:
logger.warning(notes)
def freq_setup(self, zdok, manual=True, freq=None):
#global test_freq
test_freq = freq if freq is not None else self.gpib.freq
logmsg = "Changing input frequency...current: " + str(test_freq)
logger.info(logmsg)
if manual:
tprompt = "Please enter the new test frequency (MHz): (press enter to skip)"
logger.debug(tprompt)
freq_raw = raw_input(tprompt)
logger.debug("user input: " + freq_raw)
if freq_raw == "":
logger.debug("Keeping current frequency...")
return
else:
freq = float(freq_raw)
if freq < 0 or freq > 1500:
logmsg = "freq " + str(freq) + " too big or too small"
logger.error(logmsg)
raise Exception, logmsg
exit()
logger.debug(" New frequency is: " + str(freq))
test_freq = freq
self.gpib.set_freq(test_freq)
time.sleep(2)
if manual:
tprompt = " Check raw ADC data now? (Y/N)"
to_check = raw_input(tprompt)
logger.debug(tprompt)
logger.debug("user input: " + to_check)
if to_check=='Y' or to_check=='y':
self.check_raw(zdok, save=False, view=True)
tprompt = "Does the raw data look okay? If not, "\
+ "please briefly describe the problem here "\
+ "(or press enter to proceed): "
notes = raw_input(tprompt)
logger.debug(tprompt)
logger.debug(notes)
logger.warning(notes)
def freq_scan(self, save=True, view=True, filename=None): #"freq_scan"):
filename = filename if filename is not None else self.get_check_filename("freq_scan", 2)
test_freq = self.gpib.freq
logger.info("Starting frequency scan (both ADCs)... save: " +str(save))
# Gather the data
freqs = []
f0 = []
f1 = []
spikes0_arr = []
spikes1_arr = []
rng = 50
for i in range(0, rng):
test_freq = i*30+random.random()*30
logger.debug("freq : " + str(test_freq))
self.gpib.set_freq(test_freq)
time.sleep(2)
nfr0 = self.adc.get_spec(0)
spikes0 = self.adc.find_spike(nfr0)
nfr1 = self.adc.get_spec(1)
spikes1 = self.adc.find_spike(nfr1)
logger.debug("Found spikes at %.4fMHz for ADC0"%spikes0)
logger.debug("Found spikes at %.4fMHz for ADC1"%spikes1)
freqs.append(test_freq)
f0.append(10*log(nfr0))
f1.append(10*log(nfr1))
spikes0_arr.append(spikes0)
spikes1_arr.append(spikes1)
# plot it!
f = figure()
ax0 = f.add_subplot(211)
ax1 = f.add_subplot(212)
logger.debug(" Plotting now...")
nchan = len(nfr0) # this is NOT related to the FPGA design
freqs_ind = np.arange(0, self.clockrate, self.clockrate*1./nchan)
for i in range(1, rng, 10):
logger.debug(" \ttest_freq: " + str(freqs[i]))
ax0.plot(freqs_ind, f0[i])
ax0.annotate('spike ~%.4fMHz'%spikes0_arr[i][0], xy=(spikes0_arr[i][0], 0), xycoords='data',
xytext=(spikes0_arr[i][0]+500,-1*i), textcoords='data',
arrowprops=dict(arrowstyle="->",connectionstyle="arc3"),
ha='right', va='top')
logger.debug(" \tannotated spike (ADC0): %.4fMHz"%spikes0_arr[i][0])
ax1.plot(freqs_ind, f1[i])
ax1.annotate('spike ~%.4fMHz'%spikes1_arr[i][0], xy=(spikes1_arr[i][0], 0), xycoords='data',
xytext=(spikes1_arr[i][0]+500,-1*i), textcoords='data',
arrowprops=dict(arrowstyle="->",connectionstyle="arc3"),
ha='right', va='top')
logger.debug(" \tannotated spike (ADC1): %.4fMHz"%spikes1_arr[i][0])
ax0.set_title('ADC0')
ax1.set_title('ADC1')
f.suptitle(filename)
info_str = "Current input power level: %.4f"%self.gpib.ampl
ax1.text(450, min(f1[0])+20, info_str, bbox={'facecolor':'yellow', 'alpha':0.9})
f.text(0.5, 0.04, 'frequency (MHz)', ha='center', va='center')
f.text(0.06, 0.5, 'power (dB)', ha='center', va='center', rotation='vertical')
if save:
logger.debug("Saving file :%s"%(filename+'.png'))
savefig(filename+'.png', dpi=300)
if view:
show()
else:
close()