Additional investigations of the export process

[rpolitex]

I made an additional investigation of the export process and here is my results. The main conclusion is - we should take into account what channels are Active and what channels are asked to Export. Only this way we can choose the right combination of options.

NOTE: Tested only on my Saleae Logic Pro 8 with 1.2.12 software version.

export_data2() results relative to enabled and exported channels

Enabled channels	Exported channels	Correct command
Analog	Analog	' ' (None)
	Digital	Wrong combination
	Both	Wrong combination
Digital	Analog	Wrong combination
	Digital	' ' (None)
	Both	Wrong combination
Both	Analog	ANALOG_ONLY (ANALOG_AND_DIGITAL also works)
	Digital	DIGITAL_ONLY
	Both	ANALOG_AND_DIGITAL

Examples

Analog enabled and analog exported:

s.set_active_channels([], [2, 3])
s.export_data2(filename, digital_channels=None, analog_channels=[3])

Digital enabled and digital exported:

s.set_active_channels([0, 1], [])
s.export_data2(filename, digital_channels=[0], analog_channels=None)

Both enabled

s.set_active_channels([0, 1], [2, 3])

and:

• analog exported:

  s.export_data2(filename, digital_channels=None, analog_channels=[3])

• digital exported:

  s.export_data2(filename, digital_channels=[0], analog_channels=None)

• both exported

  s.export_data2(filename, digital_channels=[0], analog_channels=[3])

[ppannuto]

Nice work! Thanks for going through the effort to enumerate all of these cases