A VHDL UART for communicating over a serial link with an FPGA. This example implements a loopback so that data received by the FPGA will be returned down the serial link.

The default settings for the link are 115200 BAUD, 8 Data, 1 Stop, No parity.

LGPL - http://www.gnu.org/licenses/lgpl.html

Below source/

• uart.vhd - The UART Receiver/Sender module, this is what you want to use in you design
• loopback.vhd - Example usage of the UART module, just echoing back the received data
• top.vhd - Sample Toplevel implementation of Loopback module

Read more about UART module usage in the header of the module file source/uart.vhd

Original release post: http://www.bytebash.com/2011/10/rs232-uart-vhdl/