Analog Devices ADRV9001 User Manual page 136

UG-1828
Figure 117 describes a high level flow chart of Rx gain control programming. Note the final step is to configure any GPIOs as necessary
such as GPIO inputs which allow the AGC gain update counter to be synchronized to a slot boundary, or DGPIOs to directly control the
gain index. Note the configure of the DGPIO pins for retrieving signal detectors information is included in the API command
adi_adrv9001_Rx_GainControl_Configure(). The operation of these has been described earlier.
Gain Control Data Structures
Figure 118 shows the member structure of adi_adrv9001_GainControlCfg_t, and its substructures, adi_adrv9001_PeakDetector_t,
adi_adrv9001_PowerDetector_t and adi_adrv9001_ExtLna_t. Each of the parameters are briefly explained in Table 61 to Table 64, the
wider context of these parameter settings being outlined in the previous relevant sections.
GAIN CONTROL
SETUP START
CONFIGURE GAIN TABLE,
AGC STRUCTURES
RUN
adi_adrv9001_Rx_GainControl_Configure( )
RUN
adi_adrv9001_Rx_GainControl_Mode_Set( )
CONFIGURE GAIN
CONTROL GPIOS
GAIN CONTROL SETUP
COMPLETE
Figure 117. Gain Control Programming Flowchart
Rev. PrA | Page 136 of 253
Preliminary Technical Data