Type in the full discussion title or a part of it.
Discussion Title Created date
Sharing signals on partitioned PCB - Multi-power or not?
Hi All, I have read many excellent posts here and a whole heap of other docs but I am still going around in circles. My question is regarding sharing digital signals between ICs...
Monday, 31 January 2011 - 17:38
XMEGA ADC Calibration
Hi all, I am looking at the possibility of using the xmega256A3 for a data acquisition device to measure a low voltage (8uV resolution, 0-15mV dynamic range) signal. Despite all...
Tuesday, 14 September 2010 - 16:23
CAN I CAN with an xmega
Hi all, I have an application where I would like to used different processors for different tasks including controlling and data logging. I would like to connect them for the...
Wednesday, 30 June 2010 - 11:17
Variables sharing memory?! very strange.. to me at least!
Hello fellow Freaks! I have recently been baffled by a section of my own code that does not seem what it appears. Basically, I have an if > 0 statement. Followed by a switch...
Friday, 4 December 2009 - 07:40
ISR killing a divide routine?
Hi all, I am having a strange problem with a divide routine. I am using the ATMega128 and GCC. I am accumulating a total of, say 10 readings from the ADC in the ADC interrupts. In...
Thursday, 15 January 2009 - 17:19
Bootloader - how can it tell if there is a valid appliction?
I have written a bootloader for my mega128 using the xmodem protocol. One role of the bootloader is to tell whether it should enter the application code or keep repeating itself,...
Wednesday, 1 October 2008 - 08:32
LCD for mega128
Hi all, I'm looking for a small LCD module for use with my mega128. I need it to display 30 characters (16x2 character format looks good) including the time, date and some other...
Tuesday, 16 September 2008 - 08:33
Bootloader on RS232 - page write time and baud rate
Hi all, Sorry about the novel. My questions are summarised at the end. I want to use a bootloader for may MEGA128 for flash programming. I already have an RS232 connection for...
Monday, 18 August 2008 - 10:55
Bootloader section - Kontrollerlab, GCC
Hi guys, I am putting together a bootloader and am having trouble offsetting the address of my .hex file to start at the bootloader section. I have seen a lot of related posts but...
Thursday, 7 August 2008 - 16:24
ADC differential input requirements
Greetings, I am using the differential channels on the mega 128 and am having trouble getting a useful result. I have two solar cells connected + against + and wish to obtain a...
Monday, 28 April 2008 - 10:38
ADC: WTF?
Hi all, despite the large number of posts regarding ADCs, I haven't been able to solve my current problem. I am using an ATmega128 and have various analog inputs on PORTF. I am...
Thursday, 24 April 2008 - 12:40
AVR Noise reduction mode not cooperating
Hi everyone, I am working with an mega128 and wish use the ADC in ADC noise reduction mode. So I set up the ADC and write the appropriate bits to the MCUCR register and...nothing...
Thursday, 10 April 2008 - 08:57