avr

I'm using eclipse for building a avr-gcc project that mixes assembly code and C source files. I want to get rid of the automatic makefile generation of eclipse because I need to automate some process into the makefiles and for other reasons. I used cmake some times ago and I was happy with it so I want to try to compile my source files using it. Everything run as expected with C sources. The problem is that at the end I need to compile some assembly files (actually 2) and add them to the target. I googled around but I didn't found a way for doing this. someone have an idea on how to do this?

I'm working on an Arduino library that will maximize the life of the AVR's EEPROM. It takes the number of variables you want to store and does the rest. This is my attempt, which does not work in all cases. Background information Atmel says each memory cell is rated for 100,000 write/erase cycles. They also provide an application note , which describes how to perform wear levelling. Here is a summary of the application note. By alternating writes across two memory addresses, we can increase the erase/write to 200,000 cycles. Three memory addresses gives you 300,000 erase/write cycles and so on

I have an Arduino Uno and a Linux environment. Though the Arduino IDE is great and all, however it doesn't give me much inputs if something goes wrong. And it also becomes excruciatingly slow and stops communicating with the chip sometimes. The alternative is to code my Arduino Uno using the AVR-GCC/g++ and AVRDude toolchain. However, I would very much like to have access to the same functions as in Arduino (like Serial , digitalWrite , etc.) while programming using a simple text editor and command line tools. So I tried to find the header file with all the functions defined ie "Arduino.h" in

Can someone please explain how the Arduino bootloader works? I'm not looking for a high level answer here, I've read the code and I get the gist of it. There's a bunch of protocol interaction that happens between the Arduino IDE and the bootloader code, ultimately resulting in a number of inline assembly instructions that self-program the flash with the program being transmitted over the serial interface. What I'm not clear on is on line 270: void (*app_start)(void) = 0x0000; ...which I recognize as the declaration, and initialization to NULL, of a function pointer. There are subsequent calls

I want to program a microcontroller (AVR) to control some leds through USB. It's just out of interest in how to build and program USB devices. There are some AVR microcontrollers that support the USB protocol or I could implement the USB protocol in an another microcontroller myself, but I wonder what to use to write your own drivers on the computer. My level in system programming: total noob (hence the question) So what is the literature you people would advice to get good knowledge of the USB technology and how to write your own drivers and beyond? P.S.: I know: C (probably will need it here