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Announcement: HWA new release
Hello Everybody,   About 2 years ago I pushed on Github a first version of the hardware abstraction tool I named HWA. Some people here gave me some feedback that I hope I...
Sun. May 17, 2015 - 04:34 PM
gcc-4.7: linking works for ATtiny, fails for ATmega
Dear Sirs, I've just compiled a gcc-4.7.2 toolchain with avr-libc-1.8.0 and I'm in trouble. Can you explain me why avr-gcc -mmcu=attiny85 main.c works and avr-gcc -mmcu=...
Sun. Dec 23, 2012 - 02:44 PM
Announcement: HWA
I've just published on GitHub the first version of what I've called HWA. HWA is a related to low-level programming, typically with microcontrollers. Its goals are: * low-level...
Wed. Jun 27, 2012 - 01:10 PM
.bss not set to 0 if no bss data declared in C source ?
Hello AVR experts, I'm using avr-gcc-4.5.3 for compiling a ATtiny44 project made of an asm source file and a C source file. The asm source declares a few bss data like this: ....
Thu. Mar 29, 2012 - 06:01 PM
Diabolo is a boot loader
A few years ago I've begun to write a serial bootloader using a software UART without crystal, plus a wxPython PC-side utility. This post to let you know I've just took the time...
Tue. Mar 13, 2012 - 02:21 PM
How can I use an ISR name other than __vector_x that...
... won't trigger a warning? Hello AVR experts, I'm looking for a mean to have an ISR named something other than __vector_x. For now, I've tried that: void myisr ( void ) {...
Tue. Mar 13, 2012 - 02:00 PM
ATtiny45: SPM instruction seems inactive
Hello Dear, The configuration: ATtiny45 + 16 MHz crystal Fuses low byte: 0xEF, high byte: 0xDF, lock bits: 0xFF The code (exerpt): ldi R30, 0x40 ldi R31, 0x00 ldi R19, 0x03...
Thu. Jun 23, 2011 - 10:46 AM
ATmega88 Fuse Extended Byte
Hello evreyone, Can somenone tell me why I can't program the fuse extended byte on an ATmega88 to launch the bootloader at 0x1E00? I use uisp : uisp -dlpt=/dev/parport0 -dprog=...
Sat. Jun 10, 2006 - 04:44 PM