AD719X-ASDZ HDL project

Overview

The AD719x-ASDZ HDL project supports the EVAL-AD719xASDZ family, comprised of EVAL-AD7190ASDZ, EVAL-AD7193ASDZ and EVAL-AD7195ASDZ, each evaluation kit featuring its own chip, the AD7190, AD7193 and AD7195 respectively - 4.8 kHz ultralow noise 24-bit sigma-delta ADC, each with its own particularities.

The on-chip low noise gain stage means that signals of small amplitude can interface directly to the ADC. The internal clock option provides a compact solution for low BW requirements.

Supported boards

Supported devices

Supported carriers

Evaluation board

Carrier

Connector

EVAL-AD7190ASDZ

Cora Z7S

PMOD JA/Arduino shield

DE10-Nano

Arduino shield

EVAL-AD7192ASDZ

Cora Z7S

PMOD JA/Arduino shield

DE10-Nano

Arduino shield

EVAL-AD7193ASDZ

Cora Z7S

PMOD JA/Arduino shield

DE10-Nano

Arduino shield

EVAL-AD7194ASDZ

Cora Z7S

PMOD JA/Arduino shield

DE10-Nano

Arduino shield

EVAL-AD7195ASDZ

Cora Z7S

PMOD JA/Arduino shield

DE10-Nano

Arduino shield

Block design

Block diagram

The data path and clock domains are depicted in the below diagram:

AD719x/CoraZ7S block diagram

SPI connections

SPI type

SPI manager instance

SPI subordinate

CS

PS

SPI 0

AD719x

0

GPIOs

GPIO signal

Direction (from FPGA view)

HDL GPIO EMIO

Software GPIO (for Zynq-7000)

adc_syncn *

OUT

33

87

adc_spi_miso_rdyn

OUT

32

86

Legend

* - adc_syncn exists all the time on the DE10-Nano project, but on the Cora Z7S project it exists only when the project was built with ARDZ_PMOD_N=1 parameter (used when connecting the eval. board through the Arduino header)

Building the HDL project

The design is built upon ADI’s generic HDL reference design framework. ADI distributes the bit/elf files of these projects as part of the ADI Kuiper Linux. If you want to build the sources, ADI makes them available on the HDL repository. To get the source you must clone the HDL repository.

Cora Z7S

Linux/Cygwin/WSL

The default build configuration (ARDZ_PMOD_N=0) features the eval. boards connected to Cora Z7S through PMOD JA:

~$
cd hdl/projects/ad719x_asdz/coraz7s
~/hdl/projects/ad719x_asdz/coraz7s$
make

The other possible way to connect the supported boards to CoraZ7S, is through the Arduino header, for which the project needs to be built with the parameter ARDZ_PMOD_N=1.

The built project will be located at hdl/projects/ad719x_asdz/coraz7s/ARDZPMODN1.

~$
cd hdl/projects/ad719x_asdz/coraz7s
~/hdl/projects/ad719x_asdz/coraz7s$
make ARDZ_PMOD_N=1

DE10-Nano

Linux/Cygwin/WSL

The only configuration available is through the Arduino header, so this project is not parameterizable:

~$
cd hdl/projects/ad719x_asdz/de10nano
~/hdl/projects/ad719x_asdz/de10nano$
make

A more comprehensive build guide can be found in the Build an HDL project user guide.

Software considerations

The reference design when using the Arduino header, has an extra GPIO, compared to the other one — the SYNCN, which is used for synchronizing multiple devices.

Resources

More information

Support

Analog Devices, Inc. will provide limited online support for anyone using the reference design with ADI components via the EngineerZone FPGA reference designs forum.

For questions regarding the ADI Linux device drivers, device trees, etc. from our Linux GitHub repository, the team will offer support on the EngineerZone Linux software drivers forum.

For questions concerning the ADI No-OS drivers, from our No-OS GitHub repository, the team will offer support on the EngineerZone microcontroller No-OS drivers forum.

It should be noted, that the older the tools’ versions and release branches are, the lower the chances to receive support from ADI engineers.