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Discussion Title Created date
Strange bug using INT0-2 on ATMega644
I have been grappling with a really strange phenomenon for a few days now that makes no sense to me... so I just thought I would describe the symptoms to see if anyone has any...
Monday, 19 November 2007 - 09:06
EEPROM Access Time Question
Does it take a lot more time writing to EEPROM than it does reading from it? It seems like this is the case, but I wasn't sure if I was just imagining it... Thanks, James
Sunday, 18 November 2007 - 06:20
AREF Voltage Source
Is there a benefit to using a high precision voltage reference at the AREF pin as opposed to simply using a voltage regulated Vcc/AVCC selected with ADMUX assuming your desired...
Thursday, 27 September 2007 - 09:21
5V Regulation from 4.8V
Hello, I started a thread entitled "capacitor recommendation request" that I no longer think captures the essence of what I'm trying to find out... so I'm re-posting a simplified...
Saturday, 1 September 2007 - 16:49
Capacitor recommendation request
I've been trying to figure out what type of capacitors to use with my 5V regulator for my specific application, and am really confused by how many choices there are out there. So...
Saturday, 25 August 2007 - 19:06
"Device: Unknown" on Compile Output
Ever since downloading the latest WinAVR/GCC and using the latest mfile to generate my makefile, I get the message "Device: Unkown" followed by the memory usage (with no...
Monday, 6 August 2007 - 04:54
qsort() question
Does anyone happen to know what you are supposed to enter as the 4th argument to qsort regarding the compare function? I cannot understand the documentation's statement: Quote:...
Saturday, 28 July 2007 - 07:23
Stupid JTAG Ice MKII Question
I have always been using mine with both the serial connector & USB connector hooked up to my PC because I could never get it to work for me otherwise. I was just wondering if...
Saturday, 28 July 2007 - 03:12
AVR32 Devices
This site only lists two AVR32 devices... are there more than just those two to pick from? Up to now I have only been experimenting with the 8-bit microcontrollers but would like...
Tuesday, 24 July 2007 - 19:03
Problem using ADMUX to switch Vrefs on the fly
I'm having trouble using ADMUX on ATMega644 to change the ADC reference voltage on the fly in my code. I have read the documentation many, many times... and think I am doing...
Saturday, 14 July 2007 - 00:23
atof() causing reset
Does anyone have any idea what would cause the atof() function to cause a code reset? I was using an ATmega1280 and successfully using the atof() call in many places in my code....
Wednesday, 20 June 2007 - 08:02
Any way to use two AVR pins as a switch?
I have an application where I was hoping to be able to switch a resistor in and out from between two points (away from the microcontroller) as the process runs. I was thinking of...
Monday, 18 June 2007 - 07:34

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