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programmable-logic:nexys-a7:demos:keyboard [2021/08/26 21:32] – ↷ Links adapted because of a move operation Arthur Brownprogrammable-logic:nexys-a7:demos:keyboard [2022/09/12 12:41] – changed forum.digilentinc.com to forum.digilent.com Jeffrey
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-====== Nexys A7 Keyboard Demo ====== 
  
-<WRAP todo important> 
-== Under Construction == 
-</WRAP> 
- 
-{{:reference:programmable-logic:nexys-a7:nexys-a7-top-600.png?400|}} 
----- 
-===== Description ===== 
- 
-This project is a Vivado demo using the Nexys A7's USB HID Host port and USB UART bridge, written in Verilog. When programmed onto the board, whenever the user presses a key on a keyboard connected to the USB HID port (J5, labeled "USB HOST"), a scan code is sent to the Nexys A7-100T through a PS/2 interface. This scan code is read and transmitted to the computer via the USB-UART bridge. When the key is released, a scan code of 0xF0XX is transmitted, indicating that the key with PS/2 code "XX" has been released. 
- 
-To use this demo, the Nexys A7 must be connected to a serial terminal on the computer it is connected to over the MicroUSB cable. 
- 
-For example: If the user presses the space bar on a keyboard connected to the Nexys A7, the scan code "29" will be sent to the computer. When the space bar is released, "F0 29" will be printed. 
- 
-Additional information on how this demo can be used can be found in appropriate READMEs, linked below. 
- 
----- 
-===== Inventory ===== 
- 
-  * Nexys A7 with a MicroUSB Programming Cable 
-  * Vivado installation compatible with the latest release of this demo (2020.1) 
-    * //See [[programmable-logic:guides:installing-vivado-and-vitis|Installing Vivado, Vitis, and Digilent Board Files]] for installation instructions.// 
-  * Serial Terminal application to receive messages printed by the demo 
-    * //See [[programmable-logic:guides:serial-terminals:start]] for more information.// 
-  * USB Keyboard 
- 
----- 
-===== Download and Usage Instructions ===== 
- 
-The following releases of this demo can be used with instructions found in the corresponding READMEs in order to run the demo. 
- 
-Releases are only compatible with the version of the Xilinx tools specified in the release version number. In addition, releases are only compatible with the specified variant of the board. For example, the v2020.1-1 release for Nexys A7-100T can only be used with Vivado 2020.1 and Nexys A7-100T variant of the board. 
- 
-The latest release version for this demo is highlighted in green. 
- 
-**Note:** //Releases for FPGA demos from before 2020.1 used a different git structure, and used a different release tag naming scheme.// 
- 
-^ Board Variant  ^ Release Tag                  ^ Release Downloads                                                                               ^ Setup Instructions                                                              ^ 
-| Nexys A7-100T  | @#C0EEBD: 100T/Keyboard/2020.1-1  | [[https://github.com/Digilent/Nexys-A7/releases/tag/100T/Keyboard/2020.1-1|Release ZIP Downloads]]   | See //Using the Latest Release//, below                                         | 
-| Nexys A7-50T   | @#C0EEBD: 50T/Keyboard/2020.1-1   | [[https://github.com/Digilent/Nexys-A7/releases/tag/50T/Keyboard/2020.1-1|Release ZIP Downloads]]    | See //Using the Latest Release//, below                                         | 
-| Nexys A7-100T  | v2018.2-1                    | [[https://github.com/Digilent/Nexys-A7-100T-Keyboard/releases/tag/v2018.2-1|Release ZIP downloads]]  | [[https://github.com/Digilent/Nexys-A7-100T-Keyboard/tree/v2018.2-1|Github README]]  | 
-| Nexys A7-50T   | v2018.2-1                    | [[https://github.com/Digilent/Nexys-A7-50T-Keyboard/releases/tag/v2018.2-1|Release ZIP downloads]]   | [[https://github.com/Digilent/Nexys-A7-50T-Keyboard/tree/v2018.2-1|Github README]]   | 
- 
-**Note for Advanced Users:** //All demos for the Nexys A7 are provided through the [[https://github.com/Digilent/Nexys-A7|Nexys-A7]] repository on Github. Further documentation on the structure of this repository can be found on this wiki's [[programmable-logic:documents:git]] page.// 
----- 
-Instructions on the use of the latest release can be found in this dropdown: 
- 
---> Using the Latest Release # 
- 
-<WRAP group> 
- 
-{{page>programmable-logic:guides:using-github-releases#hardware_only_release_before_programming&noheader}} 
- 
---> Set up the Nexys A7 # 
- 
-Plug the microUSB programming cable into the Nexys A7's PROG/UART port and the USB Keyboard in the USB HID port (J5, labeled “USB HOST”). 
- 
----- 
-<-- 
- 
-{{page>programmable-logic:guides:using-github-releases#hardware_only_release_programming&noheader}} 
- 
-At this point, the demo is now running on your board. Refer to the [[#description|Description]] and [[#functionality|Functionality]] sections of this document for more information on what it does. 
-</WRAP> 
- 
-<-- 
- 
----- 
-===== Additional Resources ===== 
- 
-All materials related to the use of the Nexys A7 can be found on its [[..:start|Resource Center]]. 
- 
-For a walkthrough of the process of creating a simple baremetal software project in Vivado and Vitis, see [[programmable-logic:guides:getting-started-with-ipi]]. Information on important parts of the GUIs, and indirect discussion of the steps required to modify, rebuild, and run this demo in hardware can also be found here. 
- 
-For technical support, please visit the [[https://forum.digilentinc.com/forum/4-fpga/|FPGA]] section of the Digilent Forum. 
- 
----- 
-<code>{{tag>project nexys-a7}}</code>