Tools for AVR assembly programing => => => tools Tools for AVR assembly programing This page provides informations about the necessary tools that are used to program AVRs with the STK200 board. Programming with the STK500 is very different and shown in more detail in the. The older software for the STK200 is not supported any more. Four programs are necessary for this. These tools are: • • • • The necessary software tools are ©ATMEL and available on the webpage of for download. The screenshots here are © ATMEL.

The mac.hlasrc.tar.gz file contains the source code for the HLA compiler under Mac OS X. Parallels for mac touch drivers. Enter it into a text editor and save it using the filename 'hw.hla'.

It should be mentioned that there are different versions of the software and some of the screenshots are subject to change with the used version. Some windows or menues look different in different versions. The basic functions are mainly unchanged. Refer to the programer's handbook, this page just provides an overview for the beginner's first steps and is not written for the assembly programing expert. Assembler programs are written with a editor. The editor just has to be able to create and edit ASCII text files.

So, basically, any simple editor does it. I recommend the use of a more advanced editor, either WAVRASM© or the editor written by (screenshot see below). An assembly program written with WAVRASM© goes like this. Just install WAVRASM© and start the program: Now we type in our directives and assembly commands in the WAVRASM editor window, together with some comments (starting with;). That should look like this: Now store the program text, named to something.asm into a dedicated directory, using the file menue. The assembly program is complete now.

If you like editing a little more in a sophisticated manner you can use the excellent editor written. This editor tools is designed for AVRs and available for free from Tan's webpage. In this editor our program looks like this: The editor recognizes commands automatically and uses different colors (syntax highlighting) to signal user constants and typing errors in those commands (in black).

Storing the code in an.asm file provides nearly the same text file. Now we have to translate this code to a machine-oriented form well understood by the AVR chip. Doing this is called assembling, which means collecting the right command words.

If you use WAVRASM© just click assemble on the menue. The result is shown here: The assembler reports the complete translation with no errors. If errors occur these are notified. Assembling resulted in one word of code which resulted from the command we used. Assembling our single asm-text file now has produced four other files (not all apply here).

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The first of these four new files, TEST.EEP, holds the content that should be written to the EEPROM of the AVR. This is not very interesting in our case, because we didn't program any content for the EEPROM. The assembler has therefore deleted this file when he completed the assembly run.

The second file, TEST.HEX, is more relevant because this file holds the commands later programmed into the AVR chip. This file looks like this: The hex numbers are are written in a special ASCII form, together with adress informations and a checksum for each line.