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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...
Fri. Jun 27, 2008 - 04:47 PM
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...
Thu. Jun 19, 2008 - 05:11 PM
The memristor
http://www.spectrum.ieee.org/may08/6207 Dam it. Why must they change the textbooks before Im out of college...
Mon. May 5, 2008 - 02:21 PM
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...
Thu. Mar 20, 2008 - 01:42 PM
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...
Mon. Jan 21, 2008 - 08:12 PM
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...
Tue. Jan 15, 2008 - 04:31 PM
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....
Mon. Jan 7, 2008 - 09:35 PM
[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.
Sun. Aug 12, 2007 - 07:51 PM
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 |= (...
Mon. Jul 2, 2007 - 06:54 PM
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...
Tue. Dec 26, 2006 - 06:16 AM