RFdc standalone driver

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Last updated: Mar 21, 2022 by Conall O Griofa
6 min read

This page gives and overview of the bare metal driver for the Xilinx® LogiCORE™ IP Zynq® UltraScale+™ RFSoC RF Data Converter

Table of Contents

Introduction

The Xilinx® LogiCORE™ IP Zynq® UltraScale+™ RFSoC RF Data Converter IP core provides a configurable wrapper to allow the RF-DAC and RF-ADC blocks to be used in IP integrator designs.

For more information, please refer to https://www.xilinx.com/products/boards-and-kits/zcu208.html , https://www.xilinx.com/products/boards-and-kits/zcu216.html & https://www.xilinx.com/products/boards-and-kits/zcu111.html . 

Driver Sources

The source code for the driver is included with the Vitis Unified Software Platform installation, as well as being available in the Xilinx Github repository. 

Driver Name

Path in Vitis

Path in Github

Driver Name

Path in Vitis

Path in Github

rfdc

<Vitis Install Directory>/data/embedded/XilinxProcessorIPLib/drivers/rfdc_v10_0

https://github.com/Xilinx/embeddedsw/tree/master/XilinxProcessorIPLib/drivers/rfdc

Note: To view the sources for a particular release, use the rel-version tag in github.  For example, for the 2020.1 release, the proper version of the code is: 

https://github.com/Xilinx/embeddedsw/tree/xilinx-v2020.1/XilinxProcessorIPLib/drivers/rfdc

The driver source code is organized into different folders.  The table below shows the <Driver Name> driver source organization. 

Directory

Description

Directory

Description

doc

Provides the API and data structure details

data

Driver .tcl and .mdd file

examples

Example applications that show how to use the driver features

src

Driver source files

Example Applications

Refer to the driver examples directory for various example applications that exercise the different features of the driver. Each application is linked in the table below. The following sections describe the usage and expected output of the various applications.  These example applications can be imported into the Vitis IDE from the Board Support Package  settings tab. 

Links to Examples

Examples Path:
 https://github.com/Xilinx/embeddedsw/tree/master/XilinxProcessorIPLib/drivers/rfdc/examples

Test Name

Example Source

Description

Test Name

Example Source

Description

Self Test

xrfdc_selftest_example.c

This example does some writes to the hardware to do some sanity checks.

Read/Write Test

xrfdc_read_write_example.c

This example uses multiple driver "set" APIs to configure the targeted* AMS block.* Subsequently it uses "get" APIs to read back the configurations to ensure that the desired configurations are applied.

Multi Tile Sync Example

xrfdc_mts_example.c

This example demonstrates the multi-tile sync functionality

Interrupt Example

xrfdc_intr_example.c

This example shows the interrupts working

Clocked Gen 3 Example

xrfdc_gen3_clocked_example.c

This example shows how to set the clocks for Gen 3 devices

Clocked Gen 2 Example

xrfdc_gen2_or_below_clocked_example.c

This example shows how to set the clocks for Gen 3 devices

Example Application Usage

Self Test

This example does some writes to the hardware to do some sanity checks.

Expected Output

RFdc Selftest Example Test Successfully ran Selftest Example Test

Read/Write Test

This example does some writes to the hardware to do some sanity checks.

Expected Output

RFdc Read and Write Example Test DAC00 Status DataPathClockStatus - 1 IsFIFOFlagsEnabled - 3 IsFIFOFlagsAsserted - 0 DAC00 Output Current is 32025mA ADC00 Status DataPathClockStatus - 1 IsFIFOFlagsEnabled - 3 IsFIFOFlagsAsserted - 0 ADC00: Link Coupling Mode is 1 DAC01 Status DataPathClockStatus - 1 IsFIFOFlagsEnabled - 3 IsFIFOFlagsAsserted - 0 DAC01 Output Current is 32025mA ADC01 Status DataPathClockStatus - 1 IsFIFOFlagsEnabled - 3 IsFIFOFlagsAsserted - 0 ADC01: Link Coupling Mode is 1 DAC02 Status DataPathClockStatus - 1 IsFIFOFlagsEnabled - 3 IsFIFOFlagsAsserted - 0 DAC02 Output Current is 32025mA DAC03 Status DataPathClockStatus - 1 IsFIFOFlagsEnabled - 3 IsFIFOFlagsAsserted - 0 DAC03 Output Current is 32025mA ADC0 PLL Configurations:: PLL Enable is 1 Feedback Divider is 48 OutputDivider is 6 ReferenceClk Divider is 1 DAC0 PLL Configurations:: PLL Enable is 1 Feedback Divider is 32 OutputDivider is 2 ReferenceClk Divider is 1 DAC10 Status DataPathClockStatus - 1 IsFIFOFlagsEnabled - 3 IsFIFOFlagsAsserted - 0 DAC10 Output Current is 32025mA ADC10 Status DataPathClockStatus - 1 IsFIFOFlagsEnabled - 3 IsFIFOFlagsAsserted - 0 ADC10: Link Coupling Mode is 1 DAC11 Status DataPathClockStatus - 1 IsFIFOFlagsEnabled - 3 IsFIFOFlagsAsserted - 0 DAC11 Output Current is 32025mA DAC12 Status DataPathClockStatus - 1 IsFIFOFlagsEnabled - 3 IsFIFOFlagsAsserted - 0 DAC12 Output Current is 32025mA DAC13 Status DataPathClockStatus - 1 IsFIFOFlagsEnabled - 3 IsFIFOFlagsAsserted - 0 DAC13 Output Current is 32025mA ADC1 PLL Configurations:: PLL Enable is 1 Feedback Divider is 48 OutputDivider is 6 ReferenceClk Divider is 1 DAC1 PLL Configurations:: PLL Enable is 1 Feedback Divider is 32 OutputDivider is 2 ReferenceClk Divider is 1 ADC20 Status DataPathClockStatus - 1 IsFIFOFlagsEnabled - 3 IsFIFOFlagsAsserted - 0 ADC20: Link Coupling Mode is 1 ADC2 PLL Configurations:: PLL Enable is 1 Feedback Divider is 48 OutputDivider is 3 ReferenceClk Divider is 1 =======Default DigitalDataPath Configuration for Tile0====== DAC DigitalDataPath0-> Connected I data = 0 DAC DigitalDataPath0-> Connected Q data = -1 ADC DigitalDataPath0-> Connected I data = 0 ADC DigitalDataPath0-> Connected Q data = -1 DAC DigitalDataPath1-> Connected I data = 1 DAC DigitalDataPath1-> Connected Q data = -1 ADC DigitalDataPath1-> Connected I data = 1 ADC DigitalDataPath1-> Connected Q data = -1 DAC DigitalDataPath2-> Connected I data = 2 DAC DigitalDataPath2-> Connected Q data = -1 ADC DigitalDataPath2-> Connected I data = 2 ADC DigitalDataPath2-> Connected Q data = -1 DAC DigitalDataPath3-> Connected I data = 3 DAC DigitalDataPath3-> Connected Q data = -1 ADC DigitalDataPath3-> Connected I data = 3 ADC DigitalDataPath3-> Connected Q data = -1 ADC0 MB Config is 0 DAC0 MB Config is 0 ============================================ =============ADC0-4G SB Configuration R2C========== ADC DigitalDataPath0-> Connected I data = 0 ADC DigitalDataPath0-> Connected Q data = -1 ADC DigitalDataPath1-> Connected I data = 1 ADC DigitalDataPath1-> Connected Q data = -1 ADC DigitalDataPath2-> Connected I data = 2 ADC DigitalDataPath2-> Connected Q data = -1 ADC DigitalDataPath3-> Connected I data = 3 ADC DigitalDataPath3-> Connected Q data = -1 ADC0 MB Config is 0 ================================================ =============ADC0,1-4G MB Configuration R2C========== ADC DigitalDataPath0-> Connected I data = 0 ADC DigitalDataPath0-> Connected Q data = -1 ADC DigitalDataPath1-> Connected I data = 0 ADC DigitalDataPath1-> Connected Q data = -1 ADC DigitalDataPath2-> Connected I data = 2 ADC DigitalDataPath2-> Connected Q data = -1 ADC DigitalDataPath3-> Connected I data = 3 ADC DigitalDataPath3-> Connected Q data = -1 ADC0 MB Config is 1 ================================================ =============ADC0,1-4G MB Configuration C2C========== ADC DigitalDataPath0-> Connected I data = 0 ADC DigitalDataPath0-> Connected Q data = 1 ADC DigitalDataPath1-> Connected I data = 0 ADC DigitalDataPath1-> Connected Q data = 1 ADC DigitalDataPath2-> Connected I data = 2 ADC DigitalDataPath2-> Connected Q data = -1 ADC DigitalDataPath3-> Connected I data = 3 ADC DigitalDataPath3-> Connected Q data = -1 ADC0 MB Config is 1 ================================================ =============ADC0,1-4G SB Configuration R2C========== ADC DigitalDataPath0-> Connected I data = 0 ADC DigitalDataPath0-> Connected Q data = -1 ADC DigitalDataPath1-> Connected I data = 1 ADC DigitalDataPath1-> Connected Q data = -1 ADC DigitalDataPath2-> Connected I data = 2 ADC DigitalDataPath2-> Connected Q data = -1 ADC DigitalDataPath3-> Connected I data = 3 ADC DigitalDataPath3-> Connected Q data = -1 ADC0 MB Config is 0 ================================================ =============DAC0 SB Configuration C2R========== DAC DigitalDataPath0-> Connected I data = 0 DAC DigitalDataPath0-> Connected Q data = -1 DAC DigitalDataPath1-> Connected I data = 1 DAC DigitalDataPath1-> Connected Q data = -1 DAC DigitalDataPath2-> Connected I data = 2 DAC DigitalDataPath2-> Connected Q data = -1 DAC DigitalDataPath3-> Connected I data = 3 DAC DigitalDataPath3-> Connected Q data = -1 DAC0 MB Config is 0 ============================================ DAC2,3 MB Config is 2 DAC 4X MB Config is 4 DAC0,1 MB Config is 3 DAC2,3 MB Config is 3 DAC0, 1 SB Config is 2 DAC2, 3 SB Config is 0 Successfully ran Read and Write Example

Interrupt Example

This example does some writes to the hardware to do some sanity checks.

Expected Output

RFdc Fabric Interrupt Example Test registered stim block. registered cap block. registered IPI interrupt. Waiting for Interrupt Successfully ran RFdc Fabric Interrupt Example Test

Change Log


https://github.com/Xilinx/embeddedsw/commits/master/XilinxProcessorIPLib/drivers/rfdc

Related Links

This page gives an overview of the bare-metal driver support for the Xilinx® Zynq UltraScale+ RFSoC RF Data Converter.



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