Racal Instruments 3151, User Manual

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3151 And 3151A User Manual
Using The Instrument 3-30
transfers.
1. Slot 0 sends commands:
TRAC:DEF (n),(m) (Shared Memory write
only)
TRAC:SEL <n>
SMEM:MODE {READ
*
WRITE}
SMEM:STATE ON
2. Slot 0 repeatedly sends:
*OPC?
When response is 1, shared memory transfers may start.
3. Slot 0 sends command:
SMEM:STATE OFF
once data transfer is complete.
The *OPC? Response is set to 1 when the Model 3151/3151A has
transferred memory access from the internal CPU to shared memory.
This typically takes a few milliseconds.
Sequence
Sequenced waveforms are a means of adding more capability to the
generator. The Model 3151/3151A can link 4096 segments and loop
on each segment up to 10
6
times.