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Discussion Title Created date
Multi-Dimensional Array Access using Pointer Arithmetic
I have a question regarding two-dimensional arrays. When trying to access a two-dimensional array with pointer arithmetic the following is used: *(*(array_name + row) + column)...
Friday, 15 June 2012 - 01:41
C Callback Functions
Can somebody explain C Callback Functions? When to use them, advantages/disadvantages, how they work, etc. I know callbacks use pointer-to-functions.
Thursday, 20 October 2011 - 02:11
XMEGA256A3BU and New AS5 Part Pack
I am trying to upgrade from the XMEGA256A3B to the XMEGA256A3BU. I installed the Atmel Part Pack upgrade for AVR Studio 5 so that AS5 would support the new U uC's. I try to...
Tuesday, 18 October 2011 - 18:59
Programming the uC via JTAG ICE MKII
I am using a STK600 with a Atmel JTAG ICE MKII debugger with a XMEGA256A3B uC. When programming the uC with the MKII over the PDI (using AVR Studio5) interface what initially...
Saturday, 1 October 2011 - 02:41
Saving Structure Data into EEPROM
Does anybody have experience saving structure data into EEPROM on the XMEGA? Even if one uses the memory mapped mode writing and erasing EEPROM data requires the NVM. I want to...
Wednesday, 28 September 2011 - 20:11
Structure Controlling a Port Pin
What is the best way to control a XMEGA port pin via a structure? Let's say I have a structure member that holds a true or false value. If the value is true the port pin is high;...
Tuesday, 13 September 2011 - 16:36
Using int64_t with XMEGA
Does the XMEGA and AVR GCC support int64_t?
Wednesday, 31 August 2011 - 21:00
Atmel MaxTouch Touchscreen Modules
I know the MaxTouch controller only was released a few weeks ago, but does anybody who Atmel partners with in terms of producing touchscreen modules using the MaxTouch controller...
Monday, 21 September 2009 - 22:39
Most Popular Graphic LCD Controllers
What would you say are the most popular graphic LCD controllers out there? What is your favorite graphic LCD controller and why?
Sunday, 2 August 2009 - 18:18
Big Fonts on a Graphic LCD
Is it possible to create custom large fonts (let's say 16 pixels by 16 pixels) on a 240 by 128 T6963 graphic display without bogging down the host uC too much? Is there a better...
Sunday, 26 July 2009 - 05:01
Using an External Crystal with an Mega2560
Okay, I want to use an external crystal with my Mega2560/STK500/STK503 setup. I have read a few posts regarding killing devices due to incorrect clock fuse bits. So this is what I...
Saturday, 11 July 2009 - 22:47
AVR GCC 0-Flag Optimization
I have been playing around with some LCD display code I wrote. When compiling using AVR GCC, the only setting that produces code that works with the LCD (works meaning seeing...
Friday, 10 July 2009 - 15:24

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