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Disabling External Interrupts from within corresponding ISR
Im trying to disable an external interrupt from it's corresponding service routine. The problem Im having is that Im confused as to why I can not disable the routine from...
Friday, 27 June 2008 - 16:47
FIFO problems
After six monthes my first major Atmel project is going fairly well. :P The problem is that I don't think I completely understand how the FIFO works. I assumed that once the...
Thursday, 19 June 2008 - 17:11
The memristor
http://www.spectrum.ieee.org/may08/6207 Dam it. Why must they change the textbooks before Im out of college...
Monday, 5 May 2008 - 14:21
A simpler expression?
((PINA & (1<<3))>0) I've read through the tutorial in the forum about bitwise operations but I'm still a little confused. I know what the above code does. It gets the...
Thursday, 20 March 2008 - 13:42
What to do with PE0 and PE1 programing pins?
Do i treat them like any other unconnected pin or is there something special I do with them? Im assuming that since the ISP mode is only enabled when the chip is in a reset state...
Monday, 21 January 2008 - 20:12
The PEN pin
I want to make sure I understand the PEN pin's function before I end up pulling it up with a resistor. The PEN pin is another way to force the Atmega chip into ISP mode. If CLK...
Tuesday, 15 January 2008 - 16:31
Octal Buffers and an ADC
Im looking at the AD9240 ADC. The datasheet is located at: www.analog.com/en/prod/0,,AD9240... It's a serial device so that there are 14 pins representing a single bit....
Monday, 7 January 2008 - 21:35
[DIS] Building a temperature sensor
Would anyone be interested in a lab I'm writing involving how to make a thermometer? It's not really related to AVRs at all but it could possibly be useful to someone.
Sunday, 12 August 2007 - 19:51
Clearing Interrupts
#include #include ISR(TIMER1_COMPA_vect) {PORTD ^=(1<<1); }; void main(void) { DDRD |= (1<<1); //Make Pin 1 on PortD an output TCCR1B |= (...
Monday, 2 July 2007 - 18:54
New to the AVR Microcontrollers
I have just discovered that the Butterfly and Dragon are in stock in Digikey. Unfortunately, I don't exactly know what other parts/wires are needed to get up and running. I know...
Tuesday, 26 December 2006 - 06:16