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lab-measurement / Lab-Measurement

Lab::Measurement allows to perform test and measurement tasks with Perl scripts.
https://www.labmeasurement.de/
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gpib_board => x has no effect #67

Closed kmaerzh closed 2 years ago

kmaerzh commented 2 years ago

If I try to use 2 separate gpib buses, in my case 2 usb dongles, the gpib_board parameter does not seem to have an influence. If I use something liike: my $instrument = new Lab::Instrument ( connection_type => 'LinuxGPIB', gpib_board => 1, gpib_address=>10, ) GPIB commands are always output on port gpib0 instead of gpib1.

amba commented 2 years ago

Hi,

good point, actually this cannot work because the board index is always set to zero in lib/Lab/Bus/LinuxGPIB.pm

$gpib_handle = ibdev( 0, $gpib_address, 0, 12, 1, 0 );

The supported API is Lab::Moose, which has a new implementation of LinuxGPIB connection, see here:

https://metacpan.org/pod/Lab::Moose::Connection::LinuxGPIB

There it should be able to pass a non-zero board_index.

Best, Simon

kmaerzh commented 2 years ago

Hi Simon,

thanks for your hint, with Lab::Moose it works. And thanks for all the work on this package and providing it.

Kai