GBS Elektronik MCA-527 Firmware Commands - Manual (Page 51)

Description of the MCA527 Firmware Commands
Name CMD_QUERY_OSCI_SCREEN
Compatibility New MCA527 command.
Execution right Necessary if the resolution index that is set with CMD_SET_OSCI_TRIGGER is larger than 0.
Description The command reads the data for the oscilloscope screen.
p:
-1 or the previously returned position
Format integer integer long integer integer
Parameter Preamble command p 0 end flag
Byte string (HEX) A5 5A 12 01 p
l
... ... p
h
00 00 B9 9B
Result data array
Byte offset 0 Start position of the received data unsigned long
Byte offset 4 Start position of the subsequent data unsigned long
Byte offset 8 Data unsigned short [500]
Byte offset 1008 Command flag and parameters 8 bytes
Byte offset 1016 Checksum unsigned short
Remarks The oscilloscope mode is described in document: “MCA527 Oscilloscope Mode”.
Name CMD_QUERY_OSCI_SCREEN_EX
Compatibility New MCA527 command.
Execution right Necessary if flags are set.
Description The command reads the data for the oscilloscope screen.
Flags:
Bit 0: convolve data with trigger filter
Bit 1: convolve data with main filter
Format integer integer integer integer integer integer
Parameter Preamble command flags 0 0 end flag
Byte string (HEX) A5 5A 29 01 flags
l
flags
h
00 00 00 00 B9 9B
Result data array
Byte offset 0 Start position of the received data unsigned long
Byte offset 4 Data unsigned short [720]
Byte offset 1404 Command flag and parameters 8 bytes
Byte offset 1412 Checksum unsigned short
Remarks This command has been added to extend the features of the oscilloscope. Corresponding to the
flags, the MCA527 convolves the data with the corresponding filters. The results can be
subsequently read with the commands CMD_QUERY_OSCI_TRIGGER_FILTER_RESULTS and
CMD_QUERY_OSCI_MAIN_FILTER_RESULTS.
The command is only usable if the resolution index that is set with CMD_SET_OSCI_TRIGGER is
not larger than 0.
The oscilloscope mode is described in document: “MCA527 Oscilloscope Mode”.
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