https://github.com/oezeb/digital-clock

Digital clock on FPGA
https://github.com/oezeb/digital-clock

Last synced: 9 days ago
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Digital clock on FPGA

• Host: GitHub
• URL: https://github.com/oezeb/digital-clock
• Owner: oezeb
• License: mit
• Created: 2023-12-14T17:01:13.000Z (about 1 year ago)
• Default Branch: master
• Last Pushed: 2024-01-19T12:22:09.000Z (12 months ago)
• Last Synced: 2024-11-06T12:11:43.747Z (about 2 months ago)
• Language: Verilog
• Homepage:
• Size: 283 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Multi-Function Digital Clock

This project is a multi-function digital clock implemented on a [Nexys 4 DDR](https://digilent.com/reference/programmable-logic/nexys-4-ddr/start) board. The clock includes a 24-hour format, a timer, and an alarm function.

## Features

- 24-hour clock: Displays the current time in a 24-hour format.

- Timer: Allows you to set a countdown timer.

- Alarm: Allows you to set an alarm for a specific time.

## Hardware Requirements

- Nexys 4 DDR board

## Software Requirements

- Xilinx Vivado for FPGA programming

## Setup and Installation

1. Clone this repository to your local machine.

2. Create a new project in Xilinx Vivado.

3. Add the source files to the project.

4. Generate a bitstream file.

5. Program the Nexys 4 DDR board with the bitstream file.

## Usage

### System inputs

- `CPU_RESET` will reset the system.

- Use the right button(`BTNR`) to switch between the clock, timer, and alarm modes.

- Use the up button(`BTNU`) to increment the selected time unit(hour, minute, second, or none).

- Use the down button(`BTND`) to switch between the time units.

- Use the left button(`BTNL`) to enable/disable the alarm.

- Use the center button(`BTNC`) to start/stop the timer.

### System outputs

- The seven-segment displays will display the time in a 24-hour format based on the current mode.

- `LED0` and `LED1` display the current mode.

- `LED2` and `LED3` display the selected time unit.

- `LED4` displays timer enable/disable.

- `LED5` displays timer reached zero.

- `MONO_AUDIO_OUT` makes some noise when the timer reaches zero.

- `LED6` displays alarm enable/disable.

- `LED7` displays alarm triggered or not.

- `MONO_AUDIO_OUT` makes some noise when the alarm is triggered.

- `LED8` through `LED15` display the seconds in binary based on the current mode.

## License

This project is licensed under the MIT License. See the LICENSE file for details.

![Nexys 4 DDR board](./nexys4ddr.jpg)