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comparison acqsweep.py @ 69:7386f2888508

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Make function more configurable
author Daniel O'Connor <doconnor@gsoft.com.au>
date Wed, 04 Aug 2021 16:07:44 +0930
parents f95db5ea2fe1
children
comparison
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68:f95db5ea2fe1 69:7386f2888508
23 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 # SUCH DAMAGE. 25 # SUCH DAMAGE.
26 # 26 #
27 27
28 import sys
28 import usb 29 import usb
29 import usb488 30 import usb488
30 31
31 # 32 #
32 # Tested with a Rigol DSG815 connected via USB 33 # Tested with a Rigol DSG815 connected via USB
33 # 34 #
34 35
35 def main(): 36 def main():
36 u = usb488.USB488Device() 37 u = usb488.USB488Device()
37 print('Found device') 38 res = u.ask('*IDN?')
39 print('Found device ID: ' + res)
38 40
39 setup(u) 41 setup(u)
40 42
41 def freqsetup(u, swstart, swstop, swpoints, swoffset, swlevel): 43 def freqsetup(u, swstart, swstop, swpoints, swoffset, swlevel):
42 '''Setup a frequency sweep''' 44 '''Setup a frequency sweep'''
43 45
44 res = u.ask('*IDN?')
45 print('Device ID: ' + res)
46
47 # Output off 46 # Output off
48 wrcheck(u, ':OUTP:STATE', 'OFF') 47 wrcheck(u, ':OUTP:STATE', 'OFF')
49 # XXX: Most of these work with :SOUR prefixed but :SWE:POIN:TRIG:TYPE does not
50 # Single sweep 48 # Single sweep
51 wrcheck(u, ':SWE:MODE', 'SING') 49 wrcheck(u, ':SWE:MODE', 'SING')
52 # Frequency sweep 50 # Frequency sweep
53 wrcheck(u, ':SWE:STATE', 'FREQ') 51 wrcheck(u, ':SWE:STATE', 'FREQ')
54 # Step (not list) 52 # Step (not list)
70 # Output level 68 # Output level
71 wrcheck(u, ':SWE:STEP:STAR:LEV', '%fdBm' % (swlevel,)) 69 wrcheck(u, ':SWE:STEP:STAR:LEV', '%fdBm' % (swlevel,))
72 wrcheck(u, ':SWE:STEP:STOP:LEV', '%fdBm' % (swlevel,)) 70 wrcheck(u, ':SWE:STEP:STOP:LEV', '%fdBm' % (swlevel,))
73 wrcheck(u, ':LEV', '%fdBm' % (swlevel,)) 71 wrcheck(u, ':LEV', '%fdBm' % (swlevel,))
74 72
73 def powersetup(u, swstart, swstop, swpoints, swfreq, swoffset):
74 '''Setup a power sweep'''
75
76 # Output off
77 wrcheck(u, ':OUTP:STATE', 'OFF')
78 # Single sweep
79 wrcheck(u, ':SWE:MODE', 'SING')
80 # Level sweep
81 wrcheck(u, ':SWE:STATE', ' LEV')
82 # Step (not list)
83 wrcheck(u, ':SWE:TYPE', 'STEP')
84 # In single sweep so it starts when SOU:SWE:EXE is sent
85 wrcheck(u, ':SWE:SWE:TRIG:TYPE', 'AUTO')
86 # Sweep a point every external trigger
87 wrcheck(u, ':SWE:POIN:TRIG:TYPE', 'EXT')
88 # Sweep up
89 wrcheck(u, ':SWE:DIR', 'FWD')
90 # Ramp (vs triangle)
91 wrcheck(u, ':SWE:STEP:SHAP', 'RAMP')
92 # Linear sweep
93 wrcheck(u, ':SWE:STEP:SPAC', 'LIN')
94 # Start/stop/points in sweep
95 wrcheck(u, ':LEV', '%fdBm' % (swstart,))
96 wrcheck(u, ':SWE:STEP:STAR:LEV', '%fdBm' % (swstart,))
97 wrcheck(u, ':SWE:STEP:STOP:LEV', '%fdBm' % (swstop,))
98 wrcheck(u, ':SWE:STEP:POIN', '%d' % (swpoints,))
99 # Output frequency
100 wrcheck(u, ':SWE:STEP:STAR:FREQ', '%fHz' % (swfreq + swoffset,))
101 wrcheck(u, ':SWE:STEP:STOP:FREQ', '%fHz' % (swfreq + swoffset,))
102 wrcheck(u, ':FREQ', '%fHz' % (swfreq,))
103 # Level sweep
104
105 # XXX: need to send this twice for some reason
106 # isn't needed for frequency sweep
107 wrcheck(u, ':SWE:STATE', ' LEV')
108
75 def arm(u): 109 def arm(u):
76 # Output on 110 # Output on
77 wrcheck(u, ':OUTP:STATE', 'ON') 111 wrcheck(u, ':OUTP:STATE', 'ON')
78 # Arm it 112 # Arm it
79 u.chkcmd(':SWE:EXEC') 113 u.chkcmd(':SWE:EXEC')
81 def wrcheck(u, name, value): 115 def wrcheck(u, name, value):
82 '''Helper function to set a value then read it back and print it out''' 116 '''Helper function to set a value then read it back and print it out'''
83 u.chkcmd(name + ' ' + value) 117 u.chkcmd(name + ' ' + value)
84 readval = u.ask(name + '?') 118 readval = u.ask(name + '?')
85 print(name + ' -> ' + readval + ' (' + value + ')') 119 print(name + ' -> ' + readval + ' (' + value + ')')
120 #sys.stdin.readline()
86 121
87 if __name__ == '__main__': 122 if __name__ == '__main__':
88 main() 123 main()