AN672 Datasheet, PDF (1/30 Pages) Silicon Laboratories – PRECISION32™ SI32LIBRARY OVERVIEW

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PRECISION32™ SI32LIBRARY OVERVIEW
1. Introduction
A 32-bit platform with large memory enables a big and complex firmware system on the device. This complexity
can slow development, as firmware consists of more layers with interweaving tasks and threads that are more
difficult to create and debug.
The si32Library is a set of flexible, reusable, and portable source modules enabling core application level
functionality for Silicon Laboratories 32-bit Precision32™ MCUs. It includes facilities for debug logging, memory
allocation, data collections, data transfers, and cooperative multitasking. The si32Library package provides
working abstractions of the hardware layer, reduces coding effort, and provides structure to aid and speed up top-
layer application development.
The si32Library is written in C99 and leverages the Silicon Laboratories si32Hal hardware access layer. This
document describes the components of the si32Library. A detailed and complete description of the si32Library
component functions can be found in the corresponding header files. The library is installed as part of the
Precision32 Software Development Kit package available at www.silabs.com/32bit-software.
The primary architectural elements of an application built with the si32Library are:
Application: the application-specific code
si32Library: reusable object based software modules
Real Time Operating System: 3rd party multitasking library
Hardware Access: CMSIS-inspired HAL encapsulating hardware peripherals
Hardware: the MCU itself, support chips, and boards
Figure 1 depicts this si32Library system.
CODE EXAMPLES
APPLICATION
Rev. 0.1 2/12
RTOS
CMSIS CoreSupport
(from ARM)
si32Library
Callback
CMSIS
CMSIS DeviceSupport
(from Silicon Labs)
HARDWARE
Figure 1. si32Library System
Copyright © 2012 by Silicon Laboratories
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