FastAVR_User_manual.pdf

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FastAVR Basic compiler Manual

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Basic like Compiler

Version 4.0.0

User Manual

March 2004 by MicroDesign

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FastAVR Basic compiler Manual

Introduction

My sincere thanks to Michael Henning and Steve Childress , for theirs assistance in writing Help and Manual.

Welcome to FastAVR – the best Basic-like language compiler for the Atmel AVR family of 8-bit microprocessors!

Basic is a High Level Language, much easier to learn and understand than assembler or C.

FastAVR Basic is a language consisting of most of the familiar BASIC keywords but has been significantly

extended with many additional very useful functions, like LCD, I2C, 1WIRE, Keyboards and many others!

FastAVR Basic Compiler has been specially written to fully support the programmer's needs to control the new

AVR Microcontroller family!

FastAVR Basic Compiler allows complex operations to be expressed as short but powerful Keywords, without

detailed knowledge of the CPU instruction set and internal circuit architecture. However, the processor-s data

sheets remains the main source anyway.

FastAVR Basic Compiler hides unnecessary system details from the beginning programmer, but also provides

assembler output for advanced programmers!

FastAVR Basic Compiler enables a faster programming and testing cycle.

FastAVR Basic Compiler allows the structure of the program to be expressed more clearly.

1.1.

Compiler Operating System Compatibility

Windows 98SE

Windows NT 4

Windows 2000

Windows XP

FastAVR Basic compiler Manual

1.2.

AVR chip supported

The most current list of AVR chips supported by the compiler is in the readme file that accompanies the installation

software. Refer to Atmel's specifications or web site for descriptions. At this User's Guide release, the Atmel AVR

chips supported are as follows.

2313

2323

2343

2333

4433

4414

8515

4434

8535

8534

ATiny13

ATiny2313

ATiny26

ATmega161

ATmega163

ATmega103

Atmega8 (see note 1)

Atmega16 (see note 1)

Atmega32 (see note 1)

Atmega323 (see note 1)

ATmega64 (see note 1)

ATmega128 (see note 1)

For processors with RAM sizes of 256 bytes or less, such as the 2313, the compiler will create much

smaller code sizes – typically 30% or better. This is done by generating code with addresses that are 8

rather than 16 bits – eliminating much needless code.

Most other Basic and C compilers do not provide this important optimization for small-RAM

microprocessors.

Note 1: Compiler support for these processors requires some user-written definitions of some new register names

and special coding for certain new features.

FastAVR Basic compiler Manual

1.3.

Development Environment

The FastAVR Integrated Development Environment (IDE) runs on the Microsoft Windows operating systems. The

IDE includes a user friendly, language-context based editor for easliy creating and altering program modules. The

IDE, shown below, uses the Atmel AVR Studio software (freeware from Atmel and inexpensive and widely available

in-circuit AVR chip programming hardware.

FastAVR Editor

for your

program’s

source code

FastAVR

Compiler

Atmel

AVR

Studio

Assembler

Binary code

for AVR

Chip

Optional Assembly

Language Source

and Listing

AVR In-

circuit

Programmer

Hardware

Optional Use of Atmel

AVR Studio Debugger

FastAVR Development Environment

The FastAVR user interface makes the use of the editor, compiler, and Atmel Studio assembler and chip

programmer very easy – there is a single window to control the process. The Atmel Studio's user interface is not

needed in most cases, with FastAVR .

The Atmel Studio software is freely available from the Atmel Web site.

There are several in-circuit programmers (ISP) for the AVR chip family. Choose one that is compatible with the ISP

software you intend to use. Many of the inexpensive hardware ISP products are compatible with the ISP in the AVR

Studio package. A PC parallel port interface to the ISP hardware is commonly used.

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