Directories and Files
F3-1(1)
The application code consist of project or product files. For convenience, we
simply called these app.c and app.h but your application can contain any
number of files and they do not have to be called app.* . The application code
is typically where you would find main() .
F3-1(2)
Quite often, semiconductor manufacturers provide library functions in source
form for accessing the peripherals on their CPU (Central Processing Unit) or
MCU (Micro Controller Unit). These libraries are quite useful and often save
valuable time. Since there is no naming convention for these files, *. c and *. h
are assumed.
F3-1(3)
The Board Support Package (BSP) is code that you would typically write to
interface to peripherals on your target board. For example you can have code
to turn on and off LEDs (light emitting diodes), functions to turn on and off
relays, and code to read switches and temperature sensors.
F3-1(4)
At Micriμm, we like to encapsulate CPU functionality. These files define
functions to disable and enable interrupts, data types (e.g., CPU_INT08U ,
CPU_FP32 ) independent of the CPU and compiler and many more functions.
F3-1(5)
μC/LIB consists of a group of source files to provide common functions for
memory copy, string manipulation and character mapping. Some of the
functions replace stdlib functions provided by the compiler. These are provided
to ensure that they are fully portable from application to application and (most
importantly) from compiler to compiler.
F3-1(6)
μC/Clk is an independant clock/calendar management module, with source
code for easily managing date and time in a product. μC/FS uses the date and
time information from μC/Clk to update files and directories with the proper
creation/modification/access time.
F3-1(7)
μC/CRC is a stand-alone module for calculating checksums and error correction
codes. This module is used by some of μC/FS device drivers.
F3-1(8)
This is the μC/FS platform-independent code, free of dependencies on CPU
and memory device. This code is written in highly-portable ANSI C code. This
code is only available to μC/FS licensees.
30
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