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155 lines
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HTML
155 lines
8.1 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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<title>SCU Robotic Systems Laboratory - Installing Procyon AVRlib</title>
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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
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</head>
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<body>
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<!--#config timefmt="%a %b %d, %Y" -->
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<h1>Installing Procyon AVRlib</h1>
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<h2>Sections</h2>
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<ol>
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<li><a href="#1">Overview</a></li>
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<li><a href="#2">Downloading</a></li>
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<li><a href="#3">Installing</a></li>
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<li><a href="#4">Testing</a></li>
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</ol>
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<center>Written by Pascal Stang | Updated:
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<!--#echo var="LAST_MODIFIED" -->
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</center>
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<hr>
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<h3><a name="1"></a>1. Overview</h3>
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<blockquote>
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<p>Procyon AVRlib is an open-source collection of C-language function libraries
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for the Atmel AVR series processors. The goal of AVRlib is to provide the
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programmer with a code base which performs the most often needed tasks in
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embedded system programming. Hopefully, this will allow the programmer to
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focus on high-level operation of their code rather than get bogged down in
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the details of low-level code.</p>
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<p>In short, AVRlib is a bunch of functions that do things commonly needed in
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embedded systems. Despite the learning curve of getting started, for most
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projects, using AVRlib will shorten the time spent programming and/or improve
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the quality or functionality of the final product.</p>
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<p>AVRlib functions are available for a wide variety of tasks and purposes.
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In general, AVRlib tries to address the following kinds of needs:</p>
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<ul>
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<li>Functions which control or interface to AVR processor hardware (like timers,
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uarts, the a2d converter, etc)</li>
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<li>Functions which interface to or drive devices often used in embedded systems
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(like LCDs, hard disks, gps units, etc)</li>
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<li>Functions which create higher-level functionality from processor resources
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(like pulse generation, software uarts, software i2c bus, etc)</li>
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</ul>
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<p>For a partial list of currently available function libraries see the <a href="index.html">AVRlib
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Main Page</a>.</p>
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</blockquote>
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<h3><a name="2"></a>2. Downloading</h3>
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<blockquote>
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<p>AVRlib is currently available as individual files, or a complete zip file.
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Both are available from the <a href="index.html">AVRlib Main Page</a>.</p>
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<p><strong><font color="#FF0000">Downloading the complete <a href="avrlib.zip">avrlib.zip</a>
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file is highly recommended as documentation and code examples are included
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in the zip.</font></strong></p>
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</blockquote>
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<h3><a name="3"></a>3. Installing</h3>
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<blockquote>
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<p><strong><font color="#FF0000">This installation for AVRlib assumes you have
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already installed the AVR-GCC or WinAVR compiler and successfully tested it.</font></strong></p>
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<p>You can install AVRlib anywhere you like, however, it's suggested that you
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install it in a directory alongside your own AVR code projects. Create or
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choose a top-level directory to hold both AVRlib and the project folders which
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you will create to hold the code for each individual project you work on.
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The directory you choose should not contain spaces in its name or path. Some
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examples are: </p>
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<pre>
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c:\Code\AVR <font color="#009900">(GOOD)</font>
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c:\My Code <font color="#FF0000">(NOT RECOMMENDED - HAS SPACES IN PATH)</font>
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</pre>
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<p>From the download step you should have an <strong>avrlib.zip</strong> file.
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Unzip this file into the code directory you chose above. Be sure to preserve
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the internal directory structure of the zip file when you unzip it. Afterward,
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you can delete avrlib.zip but you may want to keep it for later re-installs
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or as a backup.</p>
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<p>You should now have an <strong>avrlib</strong> directory where you installed
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AVRlib. If you have some time, get familiar with what's inside some of the
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directories. Your directories should look something like this:</p>
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<pre>
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c:\Code\AVR\avrlib <font color="#0000FF"><-- AVRlib header and code files</font>
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c:\Code\AVR\avrlib\conf <font color="#0000FF"><-- AVRlib template configuration files</font>
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c:\Code\AVR\avrlib\docs <font color="#0000FF"><-- AVRlib documentation</font>
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c:\Code\AVR\avrlib\examples <font color="#0000FF"><-- AVRlib example applications</font>
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c:\Code\AVR\avrlib\make <font color="#0000FF"><-- AVRlib makefile include (avrproj_make file in here)</font></pre>
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<p>Finally, you need to create an environment variable <strong>AVRLIB</strong>
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which points to the directory where you "installed" or unzipped
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the AVRlib files so the compiler can find them. An example might be:</p>
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<pre>AVRLIB = c:/code/avr/avrlib <font color="#0000FF"><-- change to actual AVRlib install directory</font>
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</pre>
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<p>If you are unsure how to set environment variables on your system, look at
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the WinAVR/AVR-GCC installation guide elsewhere on this site or consult the
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web.</p>
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<p>AVRlib installation is complete!</p>
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</blockquote>
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<h3><a name="4"></a>4. Testing</h3>
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<blockquote>
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<p>There are a few simple steps you can take to verify that AVRlib is properly
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installed:<br>
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<font color="#FF0000"><strong>(This assumes you have previously installed
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and tested the AVR-GCC or WinAVR compiler)</strong></font></p>
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<ul>
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<li>Open a Command Prompt (find it in your <strong>Start Menu</strong> or
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select <strong>Run</strong>, and run <strong>cmd.exe</strong>) </li>
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<li>Change directories to the location where you installed AVRlib. For example:<br>
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<strong>cd c:\Code\AVR\AVRlib</strong></li>
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<li>Go into the examples directory. <strong>cd examples</strong></li>
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<li>Pick an example to try compiling such as rprintf and change to that directory.
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<strong>cd rprintf</strong></li>
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<li>Type <strong>make clean</strong> at the prompt</li>
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<li>Type <strong>make</strong></li>
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<li>If your output looked like this then you just compiled your first AVRlib
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program:
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<pre>
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C:\Code\AVR\avrlib\examples\rprintf>make
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avr-gcc -c -g -Os -Wall -Wstrict-prototypes -Ic:/code/avr/avrlib -Wa,-ahlms=rpri
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ntftest.lst -mmcu=atmega323 -I. rprintftest.c -o rprintftest.o
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avr-gcc -c -g -Os -Wall -Wstrict-prototypes -Ic:/code/avr/avrlib -Wa,-ahlms=c:/c
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ode/avr/avrlib/buffer.lst -mmcu=atmega323 -I. c:/code/avr/avrlib/buffer.c -o c:/
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code/avr/avrlib/buffer.o
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avr-gcc -c -g -Os -Wall -Wstrict-prototypes -Ic:/code/avr/avrlib -Wa,-ahlms=c:/c
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ode/avr/avrlib/uart.lst -mmcu=atmega323 -I. c:/code/avr/avrlib/uart.c -o c:/code
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/avr/avrlib/uart.o
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avr-gcc -c -g -Os -Wall -Wstrict-prototypes -Ic:/code/avr/avrlib -Wa,-ahlms=c:/c
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ode/avr/avrlib/rprintf.lst -mmcu=atmega323 -I. c:/code/avr/avrlib/rprintf.c -o c
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:/code/avr/avrlib/rprintf.o
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avr-gcc -c -g -Os -Wall -Wstrict-prototypes -Ic:/code/avr/avrlib -Wa,-ahlms=c:/c
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ode/avr/avrlib/timer.lst -mmcu=atmega323 -I. c:/code/avr/avrlib/timer.c -o c:/co
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de/avr/avrlib/timer.o
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avr-gcc -c -g -Os -Wall -Wstrict-prototypes -Ic:/code/avr/avrlib -Wa,-ahlms=c:/c
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ode/avr/avrlib/vt100.lst -mmcu=atmega323 -I. c:/code/avr/avrlib/vt100.c -o c:/co
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de/avr/avrlib/vt100.o
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avr-gcc c:/code/avr/avrlib/buffer.o c:/code/avr/avrlib/uart.o c:/code/avr/avrli
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b/rprintf.o c:/code/avr/avrlib/timer.o c:/code/avr/avrlib/vt100.o rprintftest.o
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-Wl,-Map=rprintftest.map,--cref -mmcu=atmega323 -o rprintftest.elf
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avr-objcopy -O ihex -R .eeprom rprintftest.elf rprintftest.hex
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avr-objcopy -j .eeprom --set-section-flags=.eeprom="alloc,load" --change-section
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-lma .eeprom=0 -O ihex rprintftest.elf rprintftest.eep
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avr-size rprintftest.elf
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text data bss dec hex filename
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9596 0 192 9788 263c rprintftest.elf
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Errors: none
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rm c:/code/avr/avrlib/vt100.o c:/code/avr/avrlib/rprintf.o c:/code/avr/avrlib/ua
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rt.o c:/code/avr/avrlib/timer.o c:/code/avr/avrlib/buffer.o
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C:\Code\AVR\avrlib\examples\rprintf>
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</pre>
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</li>
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<strong>AVRlib is ready to use!</strong>
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</ul>
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</blockquote>
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<hr>
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<center>Written by Pascal Stang | Updated:
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<!--#echo var="LAST_MODIFIED" -->
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</center>
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</body>
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</html>
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