Changes to support HP E4400B Series

[sbingner]

This allows the use of HP E4400B series over a GPIB-LAN gateway

[amba]

Hey,

sorry I have not worked with the Spectrum Analyzer code for some time... Fortunately we have the unit tests for the existing instruments, if the new code does not break those, we can merge anyway. Best, Simon

[amba]

Here is the travis output for your PR:

https://travis-ci.org/github/lab-measurement/Lab-Measurement/pull_requests

[sbingner]

Yeah that's what I was afraid of - I'll add an argument to let it specify endianness for network connections

Here is the travis output for your PR:

https://travis-ci.org/github/lab-measurement/Lab-Measurement/pull_requests

I updated it... but it just rebuilt the old commit? It passes those tests now when I run it locally with commit cc801ce

[sbingner]

OK - I think I fixed all the tests now

[sbingner]

But the endian parameter isn't actually working when passed as an option like:

my $spec = instrument(
        type => 'HPE4400B',
        connection_type => 'VXI11',
        connection_options => {
                host => '192.168.1.100',
                device => 'gpib0,18',
                endian => 'big',
        },
);

Perhaps you can point me in the right direction to make that parameter get passed on to block_to_array correctly?

[sbingner]

OK - that should be better now... it is supported like so:

       my $spec = instrument(
                type => 'HPE4400B',
                connection_type => 'VXI11',
                connection_options => {
                  host => '192.168.1.100',
                  device => 'gpib0,18',
                },
                endian => 'big',
       );

[amba]

Very nice! Thank you very much for the contribution.

I will ask @akhuettel to push this to CPAN soon.

Best, Simon