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Sending strings via UART fails on ATMega2560
Hi all,   I have jsut established serial communication on an ATMega2560 board. Sending and receiving (even interrupt driven) single characters works great. However, when I...
Tuesday, 2 December 2014 - 21:25
AVR tool chain won't work for ATMega2560
Hi all,   I have built the AVR tool chain from sources on MacOSX and Sun Solaris (see below how). This used to work for ATMega8 projects. I purchased a ATMega2560 chip/board...
Thursday, 27 November 2014 - 19:21
PORT C as digital inputs
Hi all, I have been usig timers, the UART, ADC ports of my ATMEGA16 successfully for quite a while now. I now want to use digital inputs for the first time and am failing. I...
Friday, 23 July 2010 - 23:14
Fast PWM and UART interrupts
Hi all, I have a working BIOS on my AVR that can be communicated with over the serial port. I have implemented ISR(USART_RXC_vect) { char ReceivedByte; ReceivedByte = UDR...
Tuesday, 2 March 2010 - 18:44
Voltage measurements with ATMEGA8 ADC
Hi all, I need to measure voltages between 0..12V and 0..100V with an ATMEGA8. Since the ATMEGA8 can only measure between 0..5V I am downscaling with corresponding voltage...
Saturday, 27 February 2010 - 21:29
Setting vars in ISRs and the main loop
Hi all, I have written a simple BIOS for my ATMEGA8 that uses ISR(TIMER2_COMP_vect) ISR(USART_RXC_vect) The controlling Solaris application can communiate with the AVR over a...
Thursday, 25 February 2010 - 20:01
Fast PWM problem with ATMEGA8
Hi all, I am playing with an ATMEGA8 and have sucessfuly used the Overflow and CTC mode of timer0 and timer1. I am now trying the fast PWM mode of timer1 and don't get it to work...
Saturday, 20 February 2010 - 18:25
AVR UART problem
Hi all, I am tearing my hair off while getting the UART of an ATMEGA8 chip to work. I have an Arduino Duemilanove baord, replaced the ATMEGA328 (has a boot loader) with a standard...
Monday, 8 February 2010 - 18:24
Arduino + Ethershield Programming with avr-gcc
I have built the avr-gcc tool chain under Solaris and am able to write and burn simple blinking led programs to my Arduino Duemilanove board with avrdude and a avrispmkII SPI...
Saturday, 6 February 2010 - 20:23