CAN writer implementation

rtzoeller commented 4 years ago

[x] This contribution adheres to CONTRIBUTING.md.

What does this Pull Request accomplish?

Define a basic execution unit for transmitting CAN frames. Create one execution unit per port (technically per outgoing section).

Create several new scripting API entrypoints to help with building the execution units.

Why should this Pull Request be merged?

This is the first step towards a functional engine.

What testing has been done?

Deployed to a Linux PXI controller and validated the resulting CAN frames using the bus monitor.

I needed to hand-configure a system definition to use valid signal, frame, and cluster names, as the import functionality is not complete.

rtzoeller commented 4 years ago

There is not currently a great way for me to get the XNET interface name in a driver-compatible way. @douglasnorman is working on this independently, but for now we do some manual numeric -> string conversions.

niveristand-diff-bot commented 4 years ago

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Communication Bus Template Engine.lvlib--Implementation.lvlib--Execution Unit Factory.lvclass--Create Execution Unit.vi.png

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niveristand-diff-bot commented 4 years ago

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Communication Bus Template Engine.lvlib--Implementation.lvlib--Execution Unit Factory.lvclass--Create Execution Unit.vi.png

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Communication Bus Template Engine.lvlib--Implementation.lvlib--Execution Unit Factory.lvclass--Get Outgoing Signal Names.vi.png

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Communication Bus Template Engine.lvlib--Implementation.lvlib--NI-XNET CAN Writer Execution Unit.lvclass--Construct.vi.png

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Communication Bus Template Engine.lvlib--Implementation.lvlib--NI-XNET CAN Writer Execution Unit.lvclass--Get Identifier.vi.png

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