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--- resources:fpga:xilinx:pmod:adxl345 [30 Sep 2013 08:14] – [Functional Description] Alexandru.Tofan
+++ resources:fpga:xilinx:pmod:adxl345 [09 Jan 2021 00:57] (current) – user interwiki links Robin Getz
@@ Line 6: / Line 6: @@
 **HW Platform(s):**
-   * [[http://www.xilinx.com/products/boards-and-kits/AES-S6MB-LX9.htm|Spartan-6 LX9 Microboard (Avnet)]]
+   * [[xilinx>products/boards-and-kits/AES-S6MB-LX9.htm|Spartan-6 LX9 Microboard (Avnet)]]
    * [[http://www.digilentinc.com/Products/Detail.cfm?NavPath=2,400,897&Prod=NEXYS3|Nexys™3 Spartan-6 FPGA Board (Digilent)]]
    * [[http://www.em.avnet.com/en-us/design/drc/Pages/Zedboard.aspx|Avnet ZedBoard]] \\
@@ Line 15: / Line 15: @@
 ==== Required Hardware ====
-  * [[http://www.xilinx.com/products/boards-and-kits/AES-S6MB-LX9.htm|Spartan-6 LX9 Microboard (Avnet)]]
+  * [[xilinx>products/boards-and-kits/AES-S6MB-LX9.htm|Spartan-6 LX9 Microboard (Avnet)]]
   * [[http://www.digilentinc.com/Products/Detail.cfm?NavPath=2,400,897&Prod=NEXYS3|Nexys™3 Spartan-6 FPGA Board (Digilent)]]
   * [[http://www.em.avnet.com/en-us/design/drc/Pages/Zedboard.aspx|Avnet ZedBoard]]
@@ Line 27: / Line 27: @@
 ==== Running Demo (SDK) Program ====
-<WRAP center round tip 80%>If you are not familiar with LX9 and/or Xilix tools, please visit\\ [[http://www.xilinx.com/products/boards-and-kits/AES-S6MB-LX9.htm]] for details.\\
+<WRAP center round tip 80%>If you are not familiar with LX9 and/or Xilix tools, please visit\\ [[xilinx>products/boards-and-kits/AES-S6MB-LX9.htm]] for details.\\
 If you are not familiar with Nexys™3 and/or Xilix tools, please visit\\ [[http://www.digilentinc.com/Products/Detail.cfm?NavPath=2,400,897&Prod=NEXYS3]] for details.\\
 If you are not familiar with ZedBoard and/or Xilix tools, please visit\\ [[http://www.em.avnet.com/en-us/design/drc/Pages/Zedboard.aspx]] for details.</WRAP>
@@ Line 147: / Line 147: @@
     * [[https://github.com/analogdevicesinc/fpgahdl_xilinx/tree/master/cf_adv7511_zed|XPS Project]]\\
     * [[https://github.com/analogdevicesinc/no-OS/tree/master/Pmods/PmodACL|PmodACL Driver Files]]\\
-    * [[https://github.com/analogdevicesinc/no-OS/tree/master/Pmods/Common|ZYNQ SoC Peripherals Driver Files]] \\
+    * [[https://github.com/analogdevicesinc/no-OS/tree/master/Pmods/Common/sw|ZYNQ SoC Peripherals Driver Files]] \\
     * [[https://github.com/analogdevicesinc/no-OS/tree/master/Pmods/PmodACL/bin|Programming Script]]\\
 </WRAP>
+<wrap hide>
+====== Linux Device Driver ======
+Connect PmodACL to the JA1 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/tree/master/Pmods/PmodACL/dts|PmodACL Linux devicetree]]
+    * Configure the kernel to include the driver for the ADXL345: [[/resources/tools-software/linux-drivers/input-misc/adxl345|Compiling the ADXL345 driver into the kernel]]
+    * Follow the instructions on the following wiki page, but use the device tree downloaded on the previous step and the kernel configuration above
+        * [[/resources/tools-software/linux-drivers/platforms/zynq|Linux with HDMI video output on the ZED and ZC702]]. When following those instructions make sure to copy the devicetree file that was downloaded in step 1) to arch/arm/boot/dts/zynq-zed-adv7511-pmod-acl.dts before trying to build the zynq-zed-adv7511-pmod-acl.dtb file.
+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 a serial terminal
+===== 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/spi/devices/
+ls
+spi32765.0  spi32766.0
+cd spi32766.0
+cat modalias
+spi:adxl34x
+</code>
+If the **cat name** command doesn't return **spi:adxl34x**, then change the spi:device, and check again.
+<code>
+cd ..
+cd spi32765.0
+cat modalias
+</code>
+To see the list of options that the ADXL345 driver provides, type:
+<code>
+ls
+autosleep  disable  input     position  rate       uevent
+calibrate  driver   modalias  power     subsystem
+</code>
+To calibrate the device, type:
+<code>
+echo 1 > calibrate
+cat calibrate
+,3,-218
+</code>
+To read the position, type:
+<code>
+cat position
+(1, 0, 1)
+</code>
+{{:resources:fpga:xilinx:pmod:adxl345_linaro_terminal.jpg?600|ADXL345 Set 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:adxl345_linux_serial.jpg?600|ADXL345 Read Voltage from Serial Terminal}}
+</wrap>
 ===== More information =====
   * [[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}}

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