Function Prototype
u32 XRFdc_SetInterpolationFactor(XRFdc *InstancePtr, u32 Tile_Id, u32 Block_Id, u32 InterpolationFactor);Arguments
- XRFdc *InstancePtr
- Pointer to the driver instance.
- u32 Tile_Id
- RF-DAC tile number. Valid values are 0-3.
- u32 Block_Id
- RF-DAC number. Valid values are 0-3.
- u32 InterpolationFactor
- Interpolation factor to be set for the RF-DAC.
| Macro | Description |
|---|---|
| XRFDC_INTERP_DECIM_OFF | Interpolation is OFF |
| XRFDC_INTERP_DECIM_1X | 1X interpolation factor |
| XRFDC_INTERP_DECIM_2X | 2X interpolation factor |
| XRFDC_INTERP_DECIM_3X | 3X interpolation factor 1 |
| XRFDC_INTERP_DECIM_4X | 4X interpolation factor |
| XRFDC_INTERP_DECIM_5X | 5X interpolation factor 1 |
| XRFDC_INTERP_DECIM_6X | 6X interpolation factor 1 |
| XRFDC_INTERP_DECIM_8X | 8X interpolation factor |
| XRFDC_INTERP_DECIM_10X | 10X interpolation factor 1 |
| XRFDC_INTERP_DECIM_12X | 12X interpolation factor 1 |
| XRFDC_INTERP_DECIM_16X | 16X interpolation factor 1 |
| XRFDC_INTERP_DECIM_20X | 20X interpolation factor 1 |
| XRFDC_INTERP_DECIM_24X | 24X interpolation factor 1 |
| XRFDC_INTERP_DECIM_40X | 40X interpolation factor 1 |
|
|
Description
This API function sets the interpolation factor for the requested RF-DAC and also updates the FIFO read width based on the interpolation factor.
Dynamic change in interpolation has an impact on the block
throughput. The AXI4-Stream clock rate can be
dynamically changed to account for this change of throughput. In non-MTS mode, the
recommended procedure is to turn off the FIFO (Xrfdc_setupfifo), change the clock rate (Xrfdc_SetfabClkOutDiv), clear the FIFO interrupt, and restart the FIFO
(Xrfdc_SetupFifo).
Return Value
XRFDC_SUCCESS
XRFDC_FAILURE