Introduction We have created a real-time, multithreaded, preemptive operating system called kaOS for the Atmel Mega32 microcontroller, which loads and executes programs from a Secure Digital or MMC card. We wrote this OS and created the SD/MMC card reader as a final project for Cornell’s ECE 476 class taught by Professor Bruce Land. Our reason […]
kaOS operating system and loader using atmega32 Read More »
Introduction We have created a real-time, multithreaded, preemptive operating system called kaOS for the Atmel Mega32 microcontroller, which loads and executes programs from a Secure Digital or MMC card.We wrote this OS and created the SD/MMC card reader as a final project for Cornell’s ECE 476 class taught by Professor Bruce Land. Our reason for
kaOS operating system and loader using ATmega32 Read More »
AVR Code Debugger is useful tool to help you debug code without require resource in the MCU you are debugging. It only use 1 I/O pin, and is connected to a serial port from the host PC. Using a VT100 terminal to capture the output from the Debug tool, all of the debug information can
AVR Code Debugger using AVR microcontroller Read More »
Not long ago the Atmel company came out with a great tool for use with the AVR line of microcontrollers called the AVR Dragon. This small USB device provides professionals and hobbyists alike the ability to use: In System Programming (ISP), JTAG, Debug Wire, and High Voltage Programming. Unfortunately the device itself doesn’t include all
Here’s what i did to get started using the AVR Dragon to program ATMEGA8 microcontrollers using ubuntu (This is aimed at beginners, I myself am also being a beginner, so any improvements from more experienced users are greatly appreciated). After finally switching my laptop and computer over to ubuntu permanently, i found no software that
Getting started with ubuntu and the AVR dragon using atmega8 microcontroller Read More »
Ever wanted to be “logged in” to your AVR microcontroller? Ever thought it would be cool to “cat” a register to see its contents? Have you always wanted a way to power up and power down individual peripheral sub-systems of your AVR or Arduino in *real time* ? Me, too, so I wrote the AVR
AVRSH: A Command Interpreter Shell for Arduino/AVR Read More »
I recently started programming AVR chips, namely the ATTiny85. They can be programmed using C, compilers are readily available in Ubuntu, and you can do a LOT with them – just search for avr on this site! Anyway, I was having some trouble with my project today – the LED wouldn’t flash! I couldn’t figure
Debugging AVR code in Linux with simavr using Microcontroller ATTiny85 Read More »
Introduction: Switching multiple tasks on a same CPU is the one of the major function of an operating system. What I did now is a time sharing multitasking (time multiplexing) on an AVR. Here an atmega32 is configured to use Round-Robin Multitasking. Round-Robin allows quasi-parallel execution of several tasks. Tasks are not really executed concurrently
Multitasking in AVR (A demo to run 7 tasks on an atmega32) Read More »
