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learn:programmable-logic:tutorials:nexys-4-ddr-keyboard-demo:start [2017/04/28 20:24] – [1. Generate the Project] Andrew Holzer | learn:programmable-logic:tutorials:nexys-4-ddr-keyboard-demo:start [2017/10/24 21:54] – Arthur Brown | ||
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===== Overview ===== | ===== Overview ===== | ||
+ | |||
+ | ==== Description ==== | ||
+ | |||
+ | The Keyboard Demo project demonstrates a simple usage of the Nexys 4 DDR' | ||
+ | USB-HID port and 7 segment display. The behavior is as follows: | ||
+ | |||
+ | * The user presses a key on the keyboard, which sends a keyboard scan code to the Nexys 4 DDR. This scan code is read and output onto the 7 segment display. When a new scan code is read, it is shifted onto the 7 segment display from the right. A scan code of F0xx indicates that key xx has been released. | ||
+ | |||
==== Features Used ==== | ==== Features Used ==== | ||
| ^ Not Used ^ Used ^ | | ^ Not Used ^ Used ^ | ||
- | ^ 16 user switches | + | ^ 16 user switches |
- | ^ 16 user LEDs | + | ^ 16 user LEDs |
- | ^ Two tri-color LEDs | + | ^ Two tri-color LEDs |
- | ^ 5 User Push Buttons | + | ^ 5 User Push Buttons |
^ Two 4-digit 7-segment displays | ^ Two 4-digit 7-segment displays | ||
^ 4 Pmod ports | ^ 4 Pmod ports | ||
^ Pmod for XADC signals | ^ Pmod for XADC signals | ||
^ 16-bit VGA output | ^ 16-bit VGA output | ||
- | ^ USB-UART Bridge | + | ^ USB-UART Bridge |
^ Serial Flash for Application Data | X | | | ^ Serial Flash for Application Data | X | | | ||
^ USB HID Host With Mouse | X | | | ^ USB HID Host With Mouse | X | | | ||
^ USB HID Host With Keyboard | ^ USB HID Host With Keyboard | ||
^ Micro SD card connector | ^ Micro SD card connector | ||
- | ^ PWM audio output | + | ^ PWM audio output |
- | ^ PDM microphone | + | ^ PDM microphone |
^ 3-axis accelerometer | ^ 3-axis accelerometer | ||
- | ^ 128MiB DDR2 | X | | | + | ^ 128MiB DDR2 | X | |
^ Temperature sensor | ^ Temperature sensor | ||
^ 10/100 Ethernet PHY | X | | | ^ 10/100 Ethernet PHY | X | | | ||
- | |||
- | ==== Description ==== | ||
- | |||
- | The Keyboard Demo project demonstrates a simple usage of the Nexys 4 DDR' | ||
- | USB-HID port and 7 segment display. The behavior is as follows: | ||
- | |||
- | * The user presses a key on the keyboard, this sends a keyboard scan code to the Nexys 4 DDR. This scan code is read and output onto the 7 segment display. When a new scan code is read, it is shifted onto the 7 segment display from the right. A scan code of F0xx indicates that key xx has been released. | ||
| | ||
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===== Downloads ===== | ===== Downloads ===== | ||
- | Nexys 4 DDR Support | + | Nexys 4 DDR Keyboard Project |
------- | ------- | ||
- | ===== How to... ===== | ||
+ | ===== Download and Launch the Nexys 4 DDR Keyboard Demo ===== | ||
+ | >1) Follow the [[: | ||
- | ==== 1. Generate | + | >2) Plug your USB Keyboard into the USB HOST port on your Nexys 4 DDR, then return to the Github Projects Tutorial to finish programming and running the demo. |
- | >1.1) Download | + | ===== Using the Nexys 4 DDR Keyboard Demo ===== |
- | >1.2) Generate the **Keyboard** project by following this guide before continuing: [[vivado: | ||
- | ==== 2. Build the Project | + | ==== 1. Initial State ==== |
- | >2.1) Click **Generate Bitstream** on the left hand menu towards the bottom. Vivado will run through both Run Synthesis and Run Implementation before it generates the bitstream automatically. | ||
- | > | ||
- | >Note: If you want, you can click each step by itself in the order of **Run Synthesis**, | ||
- | > | ||
- | > | ||
- | |||
- | ==== 3. Program the Board ==== | ||
- | |||
- | >3.1) Once you have generated your bit file, Click on the hardware manager and connect to your board by choosing the local server option. | ||
- | > | ||
- | > | ||
- | |||
- | >3.2) Click program to load the project onto your Nexys4-DDR. | ||
- | |||
- | ==== 4. Run the Project ==== | ||
- | |||
- | This portion will help you run the demo and observe all its features. | ||
- | |||
- | >4.1) Initial state | ||
- | > | ||
> | > | ||
> | > | ||
> | > | ||
- | >4.2) Key Press | + | ==== 2. Key Press ==== |
- | > | + | |
>When a button is pressed, the value of the scan code will shift onto the 7 segment display. In the picture, ' | >When a button is pressed, the value of the scan code will shift onto the 7 segment display. In the picture, ' | ||
> | > | ||
> | > | ||
- | >4.3) Key Release | + | ==== 3. Key Release |
- | > | + | |
>When the ' | >When the ' | ||
> | > | ||
> | > | ||
- | >4.4) Multi key press | + | ==== 4. Multiple Key Presses ==== |
- | > | + | |
>When multiple keys are pressed their scan codes are shifted in order. In this case, Q (" | >When multiple keys are pressed their scan codes are shifted in order. In this case, Q (" | ||
> | > | ||
> | > | ||
- | {{tag> | + | {{tag> |