Use the Elemental I/O Nodes to access hardware I/O resources and perform I/O operations on digital signal processors (DSPs).
The Analog Input, Analog Output, DSP LED Bank, DSP LED, DSP Switch Bank, and DSP Switch Elemental I/O Nodes are different default configurations for an Elemental I/O Node. You can expand Elemental I/O Nodes to show any Elemental I/O items you add to the project in the Project Explorer window.
![]() | Note You must add the appropriate Elemental I/O item to the project before you can access an I/O resource in a DSP VI. |
| Palette Object | Description |
|---|---|
| AI Property Node | Indicates whether the analog input buffer contains new data. Use the AI Property Node to synchronize analog input in a DSP VI. |
| Analog Input | Reads data from the analog input that you specify with the Elemental I/O Node. |
| Analog Output | Writes data to the analog output that you specify with the Elemental I/O Node. |
| DSP LED Bank | Writes data to the digital bank output on the DSP target. The DSP LED Bank is one of the Elemental I/O items that you can specify with an Elemental I/O Node. There are no configuration options for this digital output Elemental I/O Node. |
| DSP LED | Writes data to the DSP LED that you specify with the Elemental I/O Node. There are no configuration options for this digital output Elemental I/O Node. |
| DSP Switch Bank | Reads data from the digital bank input on the DSP target. The DSP Switch Bank is one of the Elemental I/O items that you can specify with an Elemental I/O Node. There are no configuration options for this digital input Elemental I/O Node. |
| DSP Switch | Reads data from the DSP switch that you specify with the Elemental I/O Node. There are no configuration options for this digital input Elemental I/O Node. |