NIRFSG_ATTR_REF_CLOCK_SOURCE
| Data type |
Access | Coercion | High Level Functions |
|---|---|---|---|
| ViString | R/W | None | niRFSG_ConfigureRefClock |
Description
Specifies the reference clock source. To set this attribute, the NI-RFSG device must be in the Configuration state. Only certain combinations of this attribute and the NIRFSG_ATTR_PXI_CHASSIS_CLK10_SOURCE attribute are valid, as shown in the following table.
NI 5670/5671 devices also allow you to drive the PXI 10 MHz backplane clock on PXI chassis only using the NIRFSG_ATTR_PXI_CHASSIS_CLK10_SOURCE attribute.
Defined Values:
| Value | Description |
|---|---|
| NIRFSG_VAL_ONBOARD_CLK_STR | Use the onboard reference clock as the clock source. |
| NIRFSG_VAL_REF_IN_STR | Use the clock signal present at the front panel REF IN connector as the clock source. |
| NIRFSG_VAL_PXI_CLK10_STR | Use the PXI_CLK10 signal, which is present on the PXI backplane, as the clock source. |
Supported Devices: NI 5650/5651/5652/5670/5671/5672