# Parameter file for scan.py
validation = initialize_fg_scope.py

# Declare instruments to be used as the instrument name and serial number.
*fg = AFG3021B, C031180	# instrument and serial number, note the necessity of the *
*scope = TDS1012B, C055976

# Initialization commands in order
print = Why do the scope commands take so much time while the fg commands are quickly transmitted?
print = If a command takes 4 seconds to be sent, the scope has actually timed out and never executed it.
print = The chx:probe command must precede chx:scale, from trial and error.
print = Interestingly, the sum of the delay time and the time to execute the first "ch1:" command is always 6 sec.
print = Delays are absolutely necessary to guarantee transmission of the commands.

scope = factory
fg = *rst
print = Must wait 5 seconds for the scope to do whatever it is that it does.
delay = 5.0	# Absolutely necessary to sleep a while after the "factory" command.  No less than 5!
scope = select:ch1 0;ch2 0	# Turn off the display of both channels
#delay = 1.0
#scope = ch1?
#scope-read = ?
scope = ch1:probe 1;scale 0.5;position -2.0  # Factory default yunit is V.
delay = 1.0
scope = ch1:coupling ac;bandwidth off
delay = 1.0
scope = ch2:probe 1;scale 0.5;position 2.0
delay = 1.0
scope = ch2:coupling ac;bandwidth off
delay = 0.5
scope = horiz:scale 1e-04   # Factory default time or x unit is s
delay = 0.5
scope = horiz:position 0    # Trigger point is centered on the screen. -1e-04 moves it right 1 division.
fg = function sin;frequency 1.0e3
fg = voltage:amplitude 1.000
fg = voltage:offset 0
fg = voltage:phase:adjust 0	# amplitude, not pk-pk
fg = :output:impedance maximum
fg = :output:state on		# Turn on the fg
scope = select:ch1 1
scope = select:ch2 1	# Turn on both scope channels
scope = acquire:mode average     # Continuous display of input signals