LT584 programming notes

LT584 waveform template: ​template.txt read from instrument with "TEMPLATE?" command.

'Initialization

Initialization sequence extracted from VB software (​MainDAQ1.zip

"Write" means to send a command and not expect a response.

"Query" means to send a command and read back a response.

• Write Device Clear (++clr), wait 1 seconds
• Write "*RST"
• Wait
• Query "*IDN?" and read identification string
• Write "WFSU SP,0,NP,500000,FP,0,SN,0" (Waveform setup: send all data points, all segments)
• Write "TRSE EDGE,SR,C1" (Trigger setup: edge trigger, channel 1
• Wait
• Write "TRDL 20PCT" (trigger delay: 20 percent)
• Write "C1:TRCP AC" (trigger coupling)
• Write "C1:TRLV 0.01V" (trigger level)
• Write "C1:TRSL POS" (trigger slope)
• Wait
• Write "TRMD SINGLE" (single sweep mode)
• Wait
• Write "TDIV 1.0US" (horizontal scale)
• Wait
• Write "C1:TRA ON" (trace on)
• Write "C1:VDIV 0.1V" (vertical scale)
• Write "C1:ATTN 1" (1x attenuation)
• Write "C1:CPL A1M" (AC 1M coupling)
• Write "C1:OFST 0V" (no DC offset)
• Wait
• Write "SEQ ON,1000,500" (1000 segments of 500 points)
• (delay 500ms)
• Wait

The "Wait" operation can consist of sending the "*OPC?" command and waiting for the response (which should always be "1").

'Arm for Trigger

• Write Device Clear (++clr)
• Write "ARM"

'Check for Trigger

• Query "INR?" (wait for bit 13 8192?

'Read trigger times

• Query "C1:INSP? TRIGTIME'". Returns list of times (try it to get the format).