Chapter 7 __________________________________________________ Host Computer Commands
VAISALA______________________________________________________________________ 309
7.11 Reset (RESET)
The RESET command permits resetting either the entire RVP900
processor, or selected portions thereof. Flags within the command word
determine the action to be taken.
0916-148
7.12 Define Trigger Generator Waveforms
(TRIGWF)
The RVP900 has a built-in trigger generator that can synthesize six
independent digital output waveforms, each having arbitrary shape and
being active anywhere in a window centered around zero-range. The six
trigger outputs can be defined by a 2048-word by 6-bit table which is
loaded from the user computer. The patterns are automatically read from
the table and output to the six trigger lines during each radar pulse. The six
outputs can be used for transmitter triggers, scope triggers, range strobes,
Nv Reloads configuration from the saved nonvolatile settings.
For compatibility with RPV6 and RVP7, any of 3 bits will
trigger this response.
Nse Reset the receiver noise levels to the power-up default
value for all pulsewidths as defined in the Mt setup
questions (see Section 4.2.5 Mt<n>— Triggers for
Pulsewidth #n on page 117).
Fif Remove any data currently in the output FIFO's. This
permits flushing output data that was left from a previous
command, so that new output can be read from scratch. See
notes in the Introduction to this chapter concerning actions
taken by the RVP900 when the output FIFO becomes full.
NOTE
This opcode is obsolete, and is included only for backward compatibility
with the RVP6. The opcode is disabled by default (see Section 4.2.1 Mc
— Top Level Configuration on page 104), because the interactive trigger
setup procedure described in Section 5.3 Pb — Plot Burst Pulse Timing
on page 143 is the preferred method of defining all RVP900 triggers and
timing. TRIGWF should not be used in any new code applications that
drive the RVP900.
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