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ATtiny861A low freq. power consumption
Hi, Does anyone around here have experience with attiny861A current consumption, when running at very low clock frequency? In my "invention", I use a tiny861A, clocked with a 32....
Friday, 14 June 2013 - 14:06
Is port interrupt flag cleared when IRQ is executed?
Now, this is possibly a really silly question. I'm using the ATxmega128A1. Port C pin 5 is an input, used to trig port interrupt 0 (rising edge sensing). No problem there "“...
Thursday, 4 April 2013 - 15:01
PWM on xmega: What am I missing?
Hi, I've used PWM a lot on the regular megas, but fail to make it work on an xmega. I'm using the ATxmega128A1, running at 30 MHz. I've read the relevant values (those I think are...
Friday, 1 March 2013 - 15:05
OUT vs STS
Hi, I'm currently trying to understand what is going on in the sp_driver.s file from Atmel. And I'm not failing completely, I think. But there is one thing I don't understand. In...
Friday, 1 February 2013 - 15:12
Simple wireless electronics (very low priority)
Forget about ZigBee and other advanced wireless technologies. Let's just do it like this guy: http://www.youtube.com/watch?v=s1eMryiU1ro&feature=g-u-u Can't be done more...
Monday, 8 October 2012 - 08:13
What does opcode 0xFFFF actually do?
Hi, I know that opcode 0xFFFF doesn't really exist, but in some cases (rare, thankfully) where a firmware upload through a bootloader has gone wrong, the CPU must eventually...
Friday, 31 August 2012 - 09:40
8/16-bit AVR microcontroller?
Atmel repeatedly claims (on web site and in datasheets) that the XMega is an "8/16-bit" microcontroller. Now I've searched the datasheets specifically for 16-bit stuff and for...
Monday, 2 April 2012 - 10:39
Can't even figure out how to compile...
Hi, I'm (still) new at AVR32s, but I've worked with 8-bit AVRs for nearly a decade. So I thought that a switch to AVR32 would be pretty easy. Well, to quote the teacher in Pink...
Monday, 26 March 2012 - 15:02
Missing first PWM pulse? Here is a solution.
Hi, I've struggled a bit with a project where I needed to get a controlled number of PWM pulses (a burst), activated by an external interrupt edge. My main trouble was that I was...
Monday, 9 January 2012 - 12:06
sizeof(array[ ])
Hi, I'm struggling with getting the size of a const array with undefined size. The array is defined in a .c file which is not the main .c file. See code: // In separate.c file (...
Wednesday, 21 December 2011 - 11:21
I love GCC! (Low priority)
I just got thrown into some bug searching in an older PIC-based invention, using the CCS compiler. :shock: By God, I love AVR and GCC! ErikT
Tuesday, 18 October 2011 - 08:19
Load capacitance – is "good practise" misunderst
Hi, I've read numerous posts on crystal load capacitance "“ mainly questions about how to calculate values. But why these capacitors have to be there, doesn't seem to be covered....
Thursday, 23 June 2011 - 14:13

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