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Add support for EVAL-AD4880 #1752

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PopPaul2021
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PR Description

Adding the EVAL-AD4880 reference design and documentation.

PR Type

  • Bug fix (change that fixes an issue)
  • New feature (change that adds new functionality)
  • Breaking change (has dependencies in other repos or will cause CI to fail)
  • Documentation

PR Checklist

  • I have followed the code style guidelines
  • I have performed a self-review of changes
  • I have compiled all hdl projects and libraries affected by this PR
  • I have tested in hardware affected projects, at least on relevant boards
  • I have commented my code, at least hard-to-understand parts
  • I have signed off all commits from this PR
  • I have updated the documentation (wiki pages, ReadMe files, Copyright etc)
  • I have not introduced new Warnings/Critical Warnings on compilation
  • I have added new hdl testbenches or updated existing ones

The IO_DELAY_GROUP parameter was exposed and
adc_enable/adc_rst was exported.

Signed-off-by: PopPaul2021 <paul.pop@analog.com>
Signed-off-by: PopPaul2021 <paul.pop@analog.com>
Signed-off-by: PopPaul2021 <paul.pop@analog.com>
wire adca_filter_data_ready_n;
wire adcb_filter_data_ready_n;

wire fpga_100_clk;
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fpga_{100,ref}_clk and ad9508_adf4350_csn are not used. can be removed

@@ -0,0 +1,284 @@
.. _ad488x_fmc_evb:

AD408X-FMC-EVB HDL project
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Correct title: AD488X-FMC-EVB

Overview
-------------------------------------------------------------------------------

The :adi:`EVAL-AD4880-FMC <EVAL-AD4880-FMC>` is designed to demonstrate the
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@cristianmihaipopa cristianmihaipopa Jun 6, 2025

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These mentions:

  • :adi:EVAL-AD4880-FMC <EVAL-AD4880-FMC>
  • :adi:AD4880 <AD4880>

Won't work, as they don't redirect the user to the mentioned products' webpage. (AD4880 & EVAL-AD4880 pages don't exist, will they be published in the future?)

Comment on lines +24 to +26
The :adi:`EVAL-AD4880-FMC <EVAL-AD4880-FMC>` evaluation board was designed for
use with the Digilent ZedBoard via the field programmable gate array(FPGA)
mezzanine card (FMC) connector.
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This paragraph can be removed, same thing mentioned in "Supported Carriers" section (also can be removed from AD408x page).

- Carrier
- FMC slot
* - :adi:`EVAL-AD4880-FMC <EVAL-AD4880-FMC>`
- :xilinx:`ZedBoard <products/boards-and-kits/1-8dyf-11.html>`
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- `ZedBoard https://digilent.com/shop/zedboard-zynq-7000-arm-fpga-soc-development-board`__
(same as it's declared in AD408x documentation)

================ === ========== ===========
Instance name HDL Linux Zynq Actual Zynq
================ === ========== ===========
axi_ad4880_dma 13 57 89
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From bd, shouldn't this one be added too?
ad_cpu_interrupt ps-10 mb-9 ad4080_b_spi/ip2intc_irpt

@@ -31,6 +31,8 @@ Contents
AD4630-FMC <ad4630_fmc/index>
AD469X-EVB <ad469x_evb/index>
AD485X-FMCZ <ad485x_fmcz/index>
AD488X-FMC-EVB <ad488x_fmc_evb/index>
AD57XX-ARDZ <ad57xx_ardz/index>
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@cristianmihaipopa cristianmihaipopa Jun 6, 2025

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This one is duplicated, appears 2 times in the same list. (AD57XX)

Comment on lines +9 to +11
| Part name | Description |
|-----------------------------------------------|--------------------------------------------------------------------|
| [AD4880](https://www.analog.com/ad4880) | Dual Channel 20-Bit, 40 MSPS, SAR ADC |
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Suggested change
| Part name | Description |
|-----------------------------------------------|--------------------------------------------------------------------|
| [AD4880](https://www.analog.com/ad4880) | Dual Channel 20-Bit, 40 MSPS, SAR ADC |
| Part name | Description |
|-----------------------------------------|---------------------------------------|
| [AD4880](https://www.analog.com/ad4880) | Dual Channel 20-Bit, 40 MSPS, SAR ADC |

The same table should be corrected the same in AD4080x/Zed.


| Part name | Description |
|-----------------------------------------------|--------------------------------------------------------------------|
| [AD4880](https://www.analog.com/ad4880) | Dual Channel 20-Bit, 40 MSPS, SAR ADC |
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This links to the products (chip and eval. board) won't work as the pages don't exist yet.

make
```

Corresponding device tree: [zynq-zed-adv7511-ad4880.dts](https://github.com/analogdevicesinc/linux/blob/main/arch/arm/boot/dts/xilinx/zynq-zed-adv7511-ad4880.dts)
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This link doesn't work.

create_bd_port -dir I fpga_a_ref_clk
create_bd_port -dir I fpga_b_ref_clk

create_bd_port -dir O ad4080_b_spi_csn_o
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I know that this project was ported from AD408x and both are very similar, but shouldn't we name the instances properly just in case?

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3 participants