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programmable-logic:usb104a7:dspi [2022/04/20 17:32] – Arthur Brownprogrammable-logic:usb104a7:dspi [2022/10/04 11:38] (current) – external edit 127.0.0.1
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 +====== USB104A7 DSPI Demo ======
  
 +===== Overview =====
 +This project demonstrates the implementation of DSPI on the USB104A7.
 +
 +----
 +===== Description =====
 +
 +The simplified block diagram of the system implemented for this demo is shown below:
 +{{ :reference:programmable-logic:usb104a7:dspidiagram.jpg?direct |}}
 +
 +The application running on the microblaze processor emulates some registers to read and write to. Register 0 is tied to the buttons, while register 1 is tied to the LEDs. A console application is used to communicate with the USB104A7 via DSPI. The process of writing a 4 to the LEDs is as follows:
 +
 +1. Run the console application and program the USB104A7.
 +
 +2. Send "write led 4" using the console application. Alternatively use "write 1 4".
 +
 +===== Inventory=====
 +
 +===Hardware===
 +  * [[start|USB104A7]]
 +    * Including a **USB A cable** and **5V Power Supply**
 +    * NOTE: SW1 DDR voltage set to 1.5V
 +
 +===Software===
 +  * **Vivado Design Suite 2020.1** with **Vitis** and **Digilent Board Support Files** installed
 +    * Follow the [[vivado:installing-vivado:start]] guide on how to install Vivado and Digilent Board Support Files.
 +  * [[software/adept/start|Digilent Adept Runtime 2.20 or later installed]]
 +  * [[https://ttssh2.osdn.jp/index.html.en|Tera Term]]
 +    * Used to read debug messages from the FPGA. Follow the [[programmable-logic:guides:serial-terminals:start|Serial Terminal Emulator Guide]] for more information on installing and using Tera Term.
 +
 +===Skills===
 +  * **Basic familiarity with Vivado and Vitis**
 +    *  //This experience can be found by walking through our "[[vivado/getting_started/2018.2|Getting Started with Vivado]]" guide//
 +
 +===== Downloads =====
 +|Vivado Project Repository |[[https://github.com/Digilent/USB104A7-dspi|GIT Repo]]|
 +|Vivado Project Repository |[[https://github.com/Digilent/USB104A7-dspi/releases|Releases]]|
 +
 +------
 +===== Demo Setup =====
 +
 +==== Hardware Setup ====
 +1. Connect the 5V power supply to the USB104A7. Plug the USB104A7 into the PC using the USB A cable.
 +
 +==== Software Setup ====
 +
 +=== Programming the FPGA ===
 +
 +1. Download the release files from the git repo [[https://github.com/Digilent/USB104A7-dspi/releases|releases]]. This includes the DSPI Console Application, the Vivado project, and the Vitis files.
 +
 +2. Launch Xilinx Vitis. Select a folder for the workspace.
 +
 +3. Click **File>Import**. Select Vitis project exported zip file and select the USB104A7-dspi-sw-*.zip. Check all of the boxes and click finish.
 +
 +4. Build the project by clicking USB104-dspi_system and then clicking Build->Debug.
 +
 +5. Program the FPGA by clicking **Xilinx>Program FPGA**. Click **Program**.
 +
 +6. To receive debug messages, open Tera Term and connect to the COM port associated with the USB104A7. Set the baud rate to 115200.
 +
 +7. Program the Microblaze processor with the elf file. In the Project Explorer view, select the **USB104A7_dspi_system** project. Click **Run>Run (Ctrl+F11)**.
 +
 +8. Click **Launch on Hardware (System Debugger)** and then click **OK**.
 +
 +----
 +===== Operating the Demo =====
 +
 +1. Extract the USB104A7_dspi_DemoApp-*.zip folder.
 +
 +2. Run USB104A7_dspi_DemoApp.exe. The application will start up and connect to the USB104A7's DSPI port.
 +
 +3. Type "write led 3" to turn on LD0 and LD1. The Tera Term window should show debug information from the USB104A7.
 +
 +----
 +===== Final Notes =====
 +
 +For more guides and example projects for your USB104A7, please visit its [[programmable-logic:usb104a7:start|Resource Center]].
 +
 +For technical support, please visit the [[https://forum.digilentinc.com|Digilent Forums]].
 +
 +{{tag>learn programmable-logic project usb104a7 dspi}}