AN3413 Datasheet, PDF (1/18 Pages) STMicroelectronics – STM32L1x current consumption measurement and touch sensing demonstration firmware

AN3413
Application note
STM32L1x current consumption measurement
and touch sensing demonstration firmware
Introduction
This application note provides an overview of the demonstration firmware delivered with the
STM32L-DISCOVERY and 32L152CDISCOVERY evaluation boards. It allows you to
explore the rich set of power saving modes available in the STM32L1x microcontroller and
use the STM32L1xx DISCOVERY embedded IDD measurement circuit to demonstrate the
real capabilities of the Ultra low power microcontroller STM32L1x.
The demonstration application does not require any additional hardware. Once the
STM32L1xx DISCOVERY is powered-up through a USB cable connected to the host PC,
the application is ready to display the STM32L1x power consumption of each low-power
mode selected by the user.
In addition the demonstration firmware allows you to explore the touch sensing capabilities
of the STM32L1x microcontroller demonstrated by sensing the linear touch sensor or the set
of four touchkeys.
Reference documents
The current consumption measurement and touch sensing demonstration firmware is
included in the STSW-STM32072 STM32L1 discovery firmware package available from
http://www.st.com.
• STM32L1 discovery kits: STM32L-DISCOVERY and 32L152CDISCOVERY (UM1079)
• Getting started with software development toolchains for the STM32L-DISCOVERY and
32L152CDISCOVERY board (UM1451)
The above documents are available at http://www.st.com.
Table 1 lists the microcontrollers, evaluation tools and software concerned by this
application note.
Table 1. Applicable products, evaluation tools and software
Type
Part numbers
Microcontrollers
STM32L1 Series
Evaluation tools
MCU software
STM32L-DISCOVERY, 32L152CDISCOVERY
STSW-STM32072
June 2013
DocID018933 Rev 2
1/18
www.st.com