**这是本文档旧的修订版！**
A serial interface is a simple way to connect an FPGA to a PC. We just need a transmitter and receiver module.
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 five parts
How the RS-232 serial interface works
- Baud generator
- Transmitter
- Receiver
- Example of use