TDS5000B Online Programmer Guide
-- 8 6 1 --
MEASUREMENT:IMMED:VALUE?
This technique requires less bus traffic than did looping on BUSY?.
Service Request Method: Enable the OPC bit in the Device Event
Status Enable Register (DESER) and the Event Status Enable Register
(ESER) using the DESE and *ESE commands.
You can also enable service requests by setting the ESB bit in the Ser-
vice Request Enable Register (SRER) using the *SRE command. When
the operation is complete, a Service Request will be generated.
The same command sequence using the *OPC command for synchro-
nization looks like this
/* Set up conditional acquisition */
ACQUIRE:STATE OFF
SELECT:CH1 ON
HORIZONTAL:RECORDLENGTH 500
ACQUIRE:MODE SAMPLE
ACQUIRE:STOPAFTER SEQUENCE
/* Enable the status registers */
DESE 1
*ESE 1
*SRE 32
/* Acquire waveform data */
ACQUIRE:STATE ON
/* Set up the measurement parameters */
MEASUREMENT:IMMED:TYPE AMPLITUDE
MEASUREMENT:IMMED:SOURCE CH1
/* Wait until the acquisition is complete be-
fore taking the measurement
*/
*OPC
The program can now do different tasks such
as talk to other devices. The SRQ, when it
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