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Help debug my ATtiny20 not running after indirect store instruction ST Z
Summary   I have a small C/C++ program that I'm compiling for an ATtiny20. I'm trying to bring it up for the first time by slowly allowing more of the code to run to see what...
Wed. Jun 14, 2017 - 12:06 AM
Atmel Studio 7 reading fuses in .elf for ATtiny20
Hey all,   I'm trying to store the fuse byte for ATtiny20 in my .elf file to be used for production programming. Currently, I'm using Atmel Studio 7 for the production GUI...
Tue. May 30, 2017 - 09:53 PM
Reading Signature Row on AT90USB
I'm trying to read the signature row with `LPM` from my AT90USB647. Of particular interest is the 10-byte "Unique Serial Number" mentioned in section `29.7.10`. This is for a...
Sat. Jul 6, 2013 - 03:04 AM
[TUT] [IDE] Using NetBeans for AVR development
Foreword I've seen a few posts about using NetBeans for AVR development and none of them seemed very complete. I've been using NetBeans to develop quite successfully on AVRs for...
Wed. Mar 16, 2011 - 12:28 AM
Jump to Function (instead of call)
I'm writing a task switcher and want to be able to call my OS's taskSwitch() function using an [R]JMP so the calling location does not get pushed onto stack. I can't use IJMP...
Fri. Mar 11, 2011 - 10:07 PM
Bit fields for control registers
I'm writing a C++ abstraction layer for AVR modules and I found myself wondering if there wasn't a better way to set bit values in code. Have people tried using unions to access...
Mon. Dec 7, 2009 - 09:11 AM
[CODE][C]Scanning, "free running" ADC. Version 2
I know it's been a while but I wanted to finally post this. This is an updated version of my previous "tutorial". That thread however has gotten too long and I don't want to go...
Mon. Nov 23, 2009 - 06:28 PM
Logic Levels - Mixing 5v and 3v3
Hey all, I have a need to run a custom board at 5v. The issue is the board needs an xBee as well. I'm pretty sure the xBees only run on 3v3 so I'm wondering about talking between...
Thu. Jun 4, 2009 - 06:29 PM
[CODE] [C] Scanning, Free Running A/D Converter
I needed to watch multiple AD inputs but didn't want to wait for each reading when I needed them. I looked into the Free Running mode but that only watches one input at a time....
Fri. Jan 30, 2009 - 10:10 PM
[CODE] [C] Simplifying PORT and DDR #defines for Portability
My first tutorial: A philosophy of mine for programming is eliminating repeated code as much as possible. Because of this I've always been "annoyed" at code like this for use in...
Tue. Jan 20, 2009 - 10:30 PM
Keyless entry
I'm exploring the idea of making a remote unlock system for an old car of mine. I was thinking something similar to using RFID tags but I was hoping it could be much longer range...
Tue. Jan 20, 2009 - 09:16 PM