Elmo HARmonica, HARSFEN0602 software manual 100, Launching the recorder, Uploading recorded data

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8.6 Launching the recorder

The recorder is launched (or killed) using the RR command. RR also reports the recorder status.

The RR command has the following options:

RR Value	Meaning
-1	Kill the recorder if active, and invalidate any recorded data.
0	Kill the recorder (Do nothing if the recorder is not active)
1	Launch the recorder, triggered on the next BG.
2	Launch the recorder with immediate trigger.
3	Launch the recorder with the trigger defined by the RP parameters.

Table 8-4: RR command options

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Note that the actions of RR=1 and RR=2 can be obtained with RR=3 and the appropriate RP[N] definitions. The commands RR=1 and RR=2 are simply meant to allow easy interface to the most common recorder actions.

As a status report, RR may return the following values:

RR Report	Meaning
-1	No valid data in the recorder.
0	The recorder action is complete, and it is loaded with valid data.
1,2,3	Waiting for the completion of RR=1, RR=2, or RR=3 respectively.
	The report value of 1,2, and 3 does not tell if the recorder is already
	recording or is just waiting for a trigger. If this differentiation is
	required, use the SR command.
	Table 8-5: RR reports

The SR (Status Register) command details the status of the recorder. SR returns a bit field. Bits 16 and 17 of SR may have the following values:

Bit 16	Bit 17	Recorder status
0	0	Recorder inactive, no valid recorded data
0	1	Recorder armed, waiting for a trigger event
1	0	Recorder finished; valid data is ready for use.
1	1	Recording now.

Table 8-6: SR recorder status reports

8.7 Uploading recorded data

This section summarizes how to upload recorded data from the amplifier to a host.

The relevant commands for recorder data uploading are:

Parameter		Description
RR		If zero, tells that the recorder is ready for data upload.
WI[21]		Tell how much data is actually recorded.
RR[8],RR[9]		Define the part of the signal to be next uploaded
BH		Upload recorded data command.
	Table 8-7:Parameters for uploading recorded data