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October 2010 Doc ID 16793 Rev 1 1/44
AN3108
Application note
STLM75 firmware library for the STM32F10x
Introduction
This application note describes the firmware library implementing the STLM75 interface for
the STM32F10xxx (STM32F101x, STM32F103x, STM32F105x, STM32F107x)
microcontroller.
This library is a firmware package which contains a collection of routines, data structures
and macros covering the features of the STLM75 temperature sensor device. The firmware
library allows the STLM75 sensor to be used in the user application without the need for an
in-depth study of STLM75 registers and I
2
C read/write operation steps. As a result, using
the firmware library saves significant time which would otherwise be spent in coding, while
reducing the application development and integration costs.
The firmware library source code is developed in 'Strict ANSI-C' (relaxed ANSI-C for the
example application). Writing the whole library in 'Strict ANSI-C' makes it independent from
the software toolchain. In addition, the firmware architecture is developed in separate layers
and the HAL (hardware abstraction layer) makes it independent from the microcontroller
used in the final application.
Even though the firmware library source code is developed in 'ANSI-C', the code
architecture follows an OOP (object oriented programming) approach.
Section 1 describes document and library rules.
Section 2 highlights the features of the STLM75 sensor and explains its hardware interface
with a master device microcontroller (STM32 in this case).
Section 3 and 4 highlight the features of the firmware library and describe its architecture
and its exported APIs (application programming interfaces) in detail.
Section 5 contains an example application source code describing how to configure and use
the library.
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