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.. _cn0540:
CN0540 HDL project
================================================================================
Overview
--------------------------------------------------------------------------------
The HDL reference design for the :adi:`CN0540` provides a high resolution,
wide-bandwidth, high dynamic range, Integrated Electronics Piezoelectric (IEPE)
compatible interface data acquisition system (DAQ) for interfacing with
Integrated Circuit Piezo (ICP)/IEPE piezo vibration sensors. Most solutions
which interface with piezo sensors in the market are AC coupled, lacking DC and
sub-hertz measurement capability. This reference design is a DC coupled solution
in which DC and sub-hertz precision are achieved. By looking at the complete
data set from the vibration sensor in the frequency domain (DC - 50 kHz), the
type and source of a machine fault can be better predicted using the; position,
amplitude and number of harmonics found in the FFT spectrum.
The data acquisition board incorporates a precision 24-bit, 1024kSPS Sigma-delta
ADC :adi:`AD7768-1` and a 16-bit voltage output DAC :adi:`LTC2606`. Used as the
ADC driver is a high linearity FDA :adi:`ADA4945-1` and a 200mA programmable
2-terminal current source :adi:`LT3092`. Analog input protection is provided by
the switch :adi:`ADG5421F`.
This project has a SPI Engine instance to control and acquire data from the
:adi:`AD7768-1` 24-bit precision ADC. This instance provides support for
capturing continuous samples at the maximum sample rate.
Supported boards
-------------------------------------------------------------------------------
- :adi:`EVAL-CN0540-ARDZ <CN0540>`
Supported devices
-------------------------------------------------------------------------------
- :adi:`AD7768-1`
- :adi:`ADA4945-1`
- :adi:`LT3092`
- :adi:`LTC2606`
Supported carriers
-------------------------------------------------------------------------------
- :xilinx:`Cora Z7-07S <products/boards-and-kits/1-1qlaz7n.html>` Arduino shield connector
- :intel:`De10-Nano <content/www/us/en/developer/topic-technology/edge-5g/hardware/fpga-de10-nano.html>` Arduino shield connector
Block design
-------------------------------------------------------------------------------
Block diagram
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The data path and clock domains are depicted in the below diagram:
.. image:: cn0540_hdl.svg
:width: 800
:align: center
:alt: CN0540_ARDZ block diagram
Jumper setup
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
================== ================= ==========================================
Jumper/Solder link Default Position Description
================== ================= ==========================================
P10 Inserted Connects the power source to the circuit
and may be removed for testing without a
power source
================== ================= ==========================================
CPU/Memory interconnects addresses
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The addresses are dependent on the architecture of the FPGA, having an offset
added to the base address from HDL (see more at :ref:`architecture`).
======================== ===========
Instance Address
======================== ===========
spi_cn0540_axi_regmap* 0x44A0_0000
axi_cn0540_dma* 0x44A3_0000
axi_iic_cn0540* 0x44A4_0000
xadc_in* 0x44A5_0000
spi_clkgen* 0x44A7_0000
axi_dmac_0** 0x0002_0000
axi_spi_engine_0** 0x0003_0000
======================== ===========
.. admonition:: Legend
:class: note
- ``*`` instantiated only for Cora Z7S
- ``**`` instantiated only for De10-Nano
I2C connections
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.. list-table::
:widths: 20 20 20 20 20
:header-rows: 1
* - I2C type
- I2C manager instance
- Alias
- Address
- I2C subordinate
* - PL
- axi_iic
- axi_iic_cn0540
- 0x44A4_0000
- ---
* - PS
- i2c1
- sys_hps_i2c1
- ---
- ---
SPI connections
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.. list-table::
:widths: 25 25 25 25
:header-rows: 1
* - SPI type
- SPI manager instance
- SPI subordinate
- CS
* - PL
- axi_spi_engine
- cn0540
- 0
GPIOs
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The Software GPIO number is calculated as follows:
- Cora Z7S: the offset is 54
.. list-table::
:widths: 25 25 25 25
:header-rows: 2
* - GPIO signal
- Direction
- HDL GPIO EMIO
- Software GPIO
* -
- (from FPGA view)
-
- Zynq-7000
* - cn0540_shutdown
- INOUT
- 40
- 94
* - cn0540_reset_adc
- INOUT
- 39
- 93
* - cn0540_csb_aux
- INOUT
- 38
- 92
* - cn0540_sw_ff
- INOUT
- 37
- 91
* - cn0540_drdy_aux
- INOUT
- 36
- 90
* - cn0540_blue_led
- INOUT
- 35
- 89
* - cn0540_yellow_led
- INOUT
- 34
- 88
* - cn0540_sync_in
- INOUT
- 33
- 87
* - cn0540_drdy
- INOUT
- 32
- 86
- De10-Nano: the offset is 32
.. list-table::
:widths: 25 25 25 25
:header-rows: 2
* - GPIO signal
- Direction
- HDL GPIO EMIO
- Software GPIO
* -
- (from FPGA view)
-
- De10-Nano
* - ltc2308_cs
- OUT
- 41
- 9
* - cn0540_blue_led
- OUT
- 40
- 8
* - cn0540_yellow_led
- OUT
- 39
- 7
* - cn0540_sw_ff
- IN
- 38
- 6
* - cn0540_shutdown
- OUT
- 36
- 4
* - cn0540_drdy_aux
- OUT
- 35
- 3
* - cn0540_csb_aux
- OUT
- 34
- 2
* - cn0540_sync_in
- OUT
- 33
- 1
* - cn0540_reset_adc
- OUT
- 32
- 0
Interrupts
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Below are the Programmable Logic interrupts used in this project.
=================== === ========== ===========
Instance name HDL Linux Zynq Actual Zynq
=================== === ========== ===========
axi_cn0540_dma 13 57 89
axi_iic_cn0540 12 56 88
spi_cn0540 11 55 87
=================== === ========== ===========
================ === =============== ================
Instance name HDL Linux De10-Nano Actual De10-Nano
================ === =============== ================
axi_spi_engine_0 5 45 77
axi_dmac_0 4 44 76
================ === =============== ================
Building the HDL project
-------------------------------------------------------------------------------
The design is built upon ADI's generic HDL reference design framework.
ADI does not distribute the bit/elf files of these projects so they
must be built from the sources available :git-hdl:`here </>`. To get
the source you must
`clone <https://git-scm.com/book/en/v2/Git-Basics-Getting-a-Git-Repository>`__
the HDL repository, and then build the project as follows:
**Linux/Cygwin/WSL**
.. code-block::
:linenos:
user@analog:~$ cd hdl/projects/cn0540/coraz7s
user@analog:~/hdl/projects/cn0540/coraz7s$ make
A more comprehensive build guide can be found in the :ref:`build_hdl` user guide.
Resources
-------------------------------------------------------------------------------
Systems related
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Here you can find the quick start guides available for these evaluation boards:
- :dokuwiki:`[Wiki] CN0540 with Cora Z7S quick start guide <resources/eval/user-guides/circuits-from-the-lab/cn0540/coraz7s>`
- :dokuwiki:`[Wiki] CN0540 with DE10-Nano quick start quide <resources/eval/user-guides/circuits-from-the-lab/cn0540/de10-nano>`
Hardware related
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- Product datasheets:
- :adi:`CN0540`
- :adi:`AD7768-1`
- :adi:`ADA4945-1`
- :adi:`LT3092`
- :adi:`LTC2606`
- :dokuwiki:`Evaluation Board User Guide <resources/eval/user-guides/circuits-from-the-lab/cn0540>`
HDL related
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- :git-hdl:`CN0540_ARDZ HDL project source code <projects/cn0540>`
- :dokuwiki:`[Wiki] CN0540 HDL project documentation <resources/eval/user-guides/circuits-from-the-lab/cn0540/hdl>`
.. list-table::
:widths: 30 35 35
:header-rows: 1
* - IP name
- Source code link
- Documentation link
* - AXI_CLKGEN
- :git-hdl:`library/axi_dmac <library/axi_clkgen>` *
- :dokuwiki:`[Wiki] <resources/fpga/docs/axi_clkgen>`
* - AXI_DMAC
- :git-hdl:`library/axi_dmac <library/axi_dmac>`
- :ref:`here <axi_dmac>`
* - AXI_HDMI_TX
- :git-hdl:`library/axi_hdmi_tx <library/axi_hdmi_tx>` **
- :dokuwiki:`[Wiki] <resources/fpga/docs/axi_hdmi_tx>`
* - AXI_SYSID
- :git-hdl:`library/axi_sysid <library/axi_sysid>`
- :dokuwiki:`[Wiki] <resources/fpga/docs/axi_sysid>`
* - AXI_SPI_ENGINE
- :git-hdl:`library/spi_engine/axi_spi_engine <library/spi_engine/axi_spi_engine>`
- :ref:`here <spi_engine axi>`
* - SPI_ENGINE_EXECUTION
- :git-hdl:`library/spi_engine/spi_engine_execution <library/spi_engine/spi_engine_execution>`
- :ref:`here <spi_engine execution>`
* - SPI_ENGINE_INTERCONNECT
- :git-hdl:`library/spi_engine/spi_engine_interconnect <library/spi_engine/spi_engine_interconnect>`
- :ref:`here <spi_engine interconnect>`
* - SPI_ENGINE_OFFLOAD
- :git-hdl:`library/spi_engine/spi_engine_offload`
- :ref:`here <spi_engine offload>`
* - SYSID_ROM
- :git-hdl:`library/sysid_rom <library/sysid_rom>`
- :dokuwiki:`[Wiki] <resources/fpga/docs/axi_sysid>`
.. admonition:: Legend
:class: note
- ``*`` instantiated only for Cora Z7S
- ``**`` instantiated only for De10-Nano
- :ref:`SPI Engine Framework documentation <spi_engine>`
Software related
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- :git-linux:`CN0540 Linux driver source code <analogdevicesinc/linux/blob/main/drivers/iio/adc/ad7768-1.c>`
.. include:: ../common/more_information.rst
.. include:: ../common/support.rst
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