niTuner_init
Function Prototype
int niTuner_init (int device, int *taskID);
Purpose
This function initializes the PXI-5600 downconverter by loading the calibration memory, clearing the internal registers, and setting them to the following defaults:
- The PXI-5600 downconverter internal clock reference is used.
- Phase-locked loops (PLLs) are successfully locked.
- The tuner is set to a frequency of 100 MHz with a phase-detector frequency of 500 kHz.
- Attenuation is set with a mixer level of –20 dBm and a reference level of 0 dBm.
- The advance trigger is a software trigger.
- The ready signal is an active low pulse of 1 µs width.
If all the PLLs lock correctly, the STATUS light on the PXI-5600 front panel is activated.
Parameters
| Name | Type | Description |
| device | int | Passes the device number of the NI–TUNER device to initialize. This number is obtained from Measurement & Automation Explorer (MAX). |
| taskID | int * | Returns a Task ID that is used to identify the PXI-5600 downconverter in all subsequent function calls. |
Return Value
Returns the status of the function. To see an explanation of common error and warning codes, see Error and Status Codes. To see a text explanation of the status code, call niTuner_errorHandler.