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How to Download and Use AVRASM32 - A Cross-Platform Assembler for Atmel AVR Microcontrollers
If you are looking for a powerful and easy-to-use assembler for your Atmel AVR microcontroller projects, you might want to check out AVRASM32. AVRASM32 is a cross-platform assembler that is compatible with Atmel's own assembler, but also offers some extra features, such as macro support, conditional assembly, and debugging capabilities.
In this article, we will show you how to download and install AVRASM32 on your computer, and how to use it to create and compile assembly code for your AVR microcontroller.
What is AVRASM32?
AVRASM32 is an open source assembler for Atmel AVR microcontrollers. It was developed by a group of enthusiasts who wanted to create a more versatile and user-friendly alternative to Atmel's own assembler (AVRASM2).
AVRASM32 supports all the AVR microcontroller families, including ATtiny, ATmega, and ATxmega. It can generate output files in various formats, such as Intel HEX, binary, COFF, or ELF. It can also create debug information files that can be used with debugging tools like AVR Studio or gdb.
AVRASM32 has some features that make it stand out from other assemblers, such as:
Macro support: You can define and use macros to simplify your code and avoid repetition. Macros can have parameters, local labels, and automatic type conversion.
Conditional assembly: You can use conditional directives to control which parts of your code are assembled or skipped based on certain conditions.
Include files: You can use include files to organize your code into separate modules and reuse common definitions and routines.
Error checking: AVRASM32 can detect and report syntax errors, undefined symbols, out-of-range values, and other potential problems in your code.
Compatibility: AVRASM32 can assemble code written for Atmel's assembler without any modifications. It can also use the same device definition files (.inc) that are provided by Atmel.
How to Download and Install AVRASM32?
AVRASM32 is available for Windows, Linux, and Mac OS X platforms. You can download it from its official website or from its SourceForge page[^2^]. The download file is a ZIP archive that contains the executable file (avra.exe) and some documentation files.
To install AVRASM32 on your computer, you just need to extract the ZIP archive to a folder of your choice. You can then run the executable file from that folder or add it to your system path for easier access.
How to Use AVRASM32?
To use AVRASM32 to assemble your code, you need to follow these steps:
Create a source file (.asm) that contains your assembly code. You can use any text editor of your choice to write your code. You can also use include files (.inc) to import device definitions and other modules.
Open a command prompt window and navigate to the folder where your source file is located.
Type the following command to invoke AVRASM32 and assemble your code: avra.exe -fI -o output.hex source.asm. This command will generate an Intel HEX output file (.hex) and an optional debug information file (.cof) in the same folder as your source file. You can also specify other options and parameters to customize the output format and behavior of AVRASM32. For more details, you can refer to the documentation files or type avra.exe -h to see a list of available options.
If there are no errors in your code, you should see a message like this: AVRA: advanced AVR macro assembler Version 1.4.2 Build 1 (8 Feb 2019) Pass 1... Pass 2... done. If there are any errors or warnings, they will be displayed on the screen along with their line numbers and descriptions. You should fix them before proceeding.
You can now use the output file (.hex) to program your AVR microcontroller using a programmer tool of your choice. You can also use the 061ffe29dd