Serial interface (RS-232)

A serial interface is a simple way to connect an FPGA to a PC.

This project shows how to create an asynchronous serial link like RS-232 in an FPGA.

Async transmitter

It creates a signal "TxD" by serializing the data to transmit.

Async receiver

It takes a signal "RxD" from outside the FPGA and "de-serializes" it for easy use inside the FPGA.

This project has 5 parts

1. How the RS-232 serial interface works
2. Baud generator
3. Transmitter module
4. Receiver module
5. Example of use

The project's code can be found here.

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This page was last updated on November 20 2009.