UM0949 User manual STMT/8L-EV1 STM8L evaluation board with touch-sensing library Introduction The STM8L evaluation board with the touch-sensing library enables designers, who are familiar with the standard STM8Lxxx microcontrollers, to create higher-end look-and-feel user interfaces by replacing conventional electromechanical switches with touch-sensing controls. Designers can thus combine touch-sensing functions with traditional MCU features such as communication, LED control, beeper, LCD control, and so on. The touch-sensing firmware library is part of the application firmware. Maturity, robustness, flexibility, and outstanding performance make the STM8L evaluation board with the touch-sensing library a simple and robust solution. In addition, its low time-to- market period facilitates the development of numerous applications including mobile phones, cooking appliances and printers, to name a few. In development mode, designers can debug, modify, adapt, or integrate the touch-sensing library in the application firmware using the ST MCU toolset with the ST Visual Develop (STVD) IDE interface. Evaluation firmware Evaluation firmware is preloaded in the board s STM8L15x device for easy demonstration of the device peripherals in stand-alone mode. To download the latest version and for more information refer to the STMT/8L-EV1 demonstration software available on www.st.com. Order code To order the STM8L evaluation board with the touch-sensing library, use the order code STMT/8L-EV1. Figure 1. STM8L evaluation board December 2010 Doc ID 17562 Rev 2 1/25 www.st.comContents STMT/8L-EV1 Contents 1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2.1 Touch sensing library . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2.2 STM8L evaluation board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.3 User interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2 Analysis and development features . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.1 STM8L evaluation board options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.1.1 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.1.2 Analysis connectors (CN1, CN2, and CN8) . . . . . . . . . . . . . . . . . . . . . . . 6 2.1.3 Communication connector (CN4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.2 Dielectric . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3 Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3.1 Main level menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3.2 Channels information menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3.3 Slider and wheel menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.4 Menu explication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 4 Advanced evaluation using a debugging environment . . . . . . . . . . . . 13 4.1 Running the evaluation firmware in debug mode . . . . . . . . . . . . . . . . . . . 13 4.2 Debugging the application using STVD . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4.3 Exploring key structures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 5 Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 5.1 Device power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 5.2 Acquisition duration and reaction time . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Appendix A Schematics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 2/25 Doc ID 17562 Rev 2