December 2010

Doc ID 17835 Rev 1

1/25

AN3259

Application note

RS232 communications with a terminal

using the STM8S-DISCOVERY

Application overview

This application note describes how to control the STM8S-DISCOVERY from a terminal

window running on a PC which is connected to the STM8S105C6T6 microcontroller UART

through an RS232 cable.

After adding the required components to the board and downloading the application

software, you will be able to use a terminal to manage STM8S GPIOs and TIM3 timer, and

to configure the beeper output.

Reference documents

●

STM8S-DISCOVERY evaluation board user manual (UM0817).

●

Developing and debugging your STM8S-DISCOVERY application code (UM0834).

●

ST232B-ST232C datasheet

All these documents are available at http://www.st.com.

www.st.com