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resources:fpga:xilinx:pmod:ad7091r [01 Oct 2013 09:23] – [FPGA Configuration for ZedBoard] Alexandru.Tofanresources:fpga:xilinx:pmod:ad7091r [21 Nov 2013 13:38] – added custom hdl linux (in progress) Alexandru.Tofan
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     * [[https://github.com/analogdevicesinc/no-OS/tree/master/Pmods/PmodAD6/cf_ad7091r_zed|XPS Project]]\\     * [[https://github.com/analogdevicesinc/no-OS/tree/master/Pmods/PmodAD6/cf_ad7091r_zed|XPS Project]]\\
     * [[https://github.com/analogdevicesinc/no-OS/tree/master/Pmods/PmodAD6/cf_lib/edk/pcores/axi_ad7091r_v1_00_a|AD7091R IPCore]] \\     * [[https://github.com/analogdevicesinc/no-OS/tree/master/Pmods/PmodAD6/cf_lib/edk/pcores/axi_ad7091r_v1_00_a|AD7091R IPCore]] \\
-    * [[https://github.com/analogdevicesinc/no-OS/tree/master/Pmods/Common/cf_lib|Required Project Libraries]]\\+    * [[https://github.com/analogdevicesinc/fpgahdl_xilinx/tree/master/cf_lib|Required Project Libraries]]\\
     * [[https://github.com/analogdevicesinc/no-OS/tree/master/Pmods/PmodAD6|PmodAD6 Driver Files]]\\     * [[https://github.com/analogdevicesinc/no-OS/tree/master/Pmods/PmodAD6|PmodAD6 Driver Files]]\\
     * [[https://github.com/analogdevicesinc/no-OS/tree/master/Pmods/PmodAD6/bin|Programming Script]]\\     * [[https://github.com/analogdevicesinc/no-OS/tree/master/Pmods/PmodAD6/bin|Programming Script]]\\
          
 </WRAP> </WRAP>
 +
 +====== Linux Device Driver - Custom HDL PCore ======
 +
 +Connect PmodAD6 to the JD1 connector of the ZedBoard (upper row of pins).
 +
 +===== Preparing the SD Card =====
 +
 +In order to prepare the SD Card for booting Linux on the ZedBoard:
 +    * Download the device tree: [[https://github.com/analogdevicesinc/no-OS/blob/master/Pmods/PmodAD6/dts/zynq-zed-adv7511-pmod-ad6-ipcore.dts|PmodAD6 Linux devicetree]]
 +    * Download the Xilinx XPS project: [[https://github.com/analogdevicesinc/no-OS/tree/master/Pmods/PmodAD6/cf_ad7980_zed|PmodAD6 Linux XPS Project]]
 +    * Download the AD7091R IPcore: [[https://github.com/analogdevicesinc/no-OS/tree/master/Pmods/PmodAD6/cf_lib/edk/pcores/axi_ad7091r_v1_00_a|AD7091R IPCore]] \\
 +    * Download the project libraries: [[https://github.com/analogdevicesinc/fpgahdl_xilinx/tree/master/cf_lib|Required Project Libraries]]\\
 +    * Follow the instructions on the following wiki page, but use the device tree and project downloaded on the previous step
 +        * [[http://wiki.analog.com/resources/tools-software/linux-drivers/platforms/zynq?s=adv7511&s=linux|Linux with HDMI video output on the ZED and ZC702]].
 +
 +Make sure you have an HDMI monitor connected to the ZedBoard, plug in the SD Card and power on the board.
 +If everything is correct, the system should boot up. If you don't have an HDMI monitor, connect to the board via UART, Baud Rate 115200.
 +
 +There are 2 ways to test the driver.
 +    * Using the terminal window
 +    * Using the ADI IIO Oscilloscope
 +
 +===== Using the terminal window =====
 +
 +Open a new terminal window by pressing **Ctrl+Alt+T**.
 +
 +Navigate to the location of the device and identify it using the following commands:
 +<code>
 +cd /sys/bus/iio/devices/
 +ls
 +iio:device0 iio:device1 trigger0
 +cd iio\:device0
 +cat name
 +AD7091R
 +</code>
 +
 +If the **cat name** command doesn't return **ad7091r**, then change the number of the iio:device, and check again.
 +<code>
 +cd ..
 +cd iio\:device1
 +cat name
 +</code>
 +
 +To see the list of options that the AD7980 driver provides, type:
 +<code>
 +ls
 +buffer  dev  name  power  scan_elements  subsystem  uevent
 +</code>
 +
 +To read the raw input voltage, type:
 +<code>
 +cd buffer
 +echo 128 > length
 +echo 1 > enable
 +hexdump -x /dev/iio\:device0
 +0000000    0000    dc3e    0000    dc1b    0000    dc3f    0000    dc4a
 +0000010    0000    dc2c    0000    dc3e    0000    dc25    0000    dc3d
 +0000020    0000    dc38    0000    dc2f    0000    dc2c    0000    dc22
 +0000030    0000    dc03    0000    dc1a    0000    dbfe    0000    dbff
 +0000040    0000    dc25    0000    dc29    0000    dc22    0000    dc05
 +0000050    0000    dc20    0000    dc2a    0000    dc09    0000    dc2e
 +0000060    0000    dc12    0000    dc0c    0000    dc2c    0000    dc2b
 +0000070    0000    dc3b    0000    dc2f    0000    dc2a    0000    dc14
 +</code>
 +
 +{{:resources:fpga:xilinx:pmod:ad7091r_custom_linaro_terminal.jpg?600|AD7091R Read Voltage from Terminal}}
 +
 +The commands written above can also be used if not using an HDMI monitor and a wireless keyboard, by using a serial terminal, and typing the commands after the system boot-up is complete.
 +
 +{{:resources:fpga:xilinx:pmod:ad7091r_custom_linux_serial.jpg?600|AD7091R Read Voltage from Serial Terminal}}
 +
 +===== Using the ADI IIO Oscilloscope =====
 +
 +Install the ADI IIO Oscilloscope using the instructions from the following wiki page:
 +    * [[http://wiki.analog.com/resources/tools-software/linux-software/iio_oscilloscope|IIO Oscilloscope]]
 +
 +Launch the ADI IIO Oscilloscope.
 +
 +Select **AD7091R** from the **Device** drop-down menu. Set the desired number of samples in the **Sample Count** tab. Click the **Green Play Button** in order to start capturing and displaying data. Click **Stop** to stop the process.
 +
 +{{:resources:fpga:xilinx:pmod:ad7091r_custom_iio_plot.jpg?600|AD7091R IIO Oscilloscope Plot}}
  
 ===== More information ===== ===== More information =====
   * [[ez>community/fpga|ask questions about the FPGA reference design]]   * [[ez>community/fpga|ask questions about the FPGA reference design]]
   * Example questions: {{rss>http://ez.analog.com/community/feeds/allcontent/atom?community=2061 5 author 1d}}   * Example questions: {{rss>http://ez.analog.com/community/feeds/allcontent/atom?community=2061 5 author 1d}}
resources/fpga/xilinx/pmod/ad7091r.txt · Last modified: 09 Jan 2021 00:49 by Robin Getz

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