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Discussion Title Created date
Why different ADC value after moving from STK500?
I recently moved my ATmega644 from the STK to the breadboard. But now the minimum value my ADC output gives is 46. On the STK it was 0, and I calibrated around that. Not that...
Sunday, 14 June 2009 - 05:53
Serial port read problem
Hello, I've posted this same question in the C++ forums, but maybe it would make sense to ask you guys, since I'm working with AVRs. Essentially, windows sends RS232, AVR receives...
Thursday, 11 June 2009 - 14:48
Super simple SYNTAX question
Hello again, If I want to turn off specific output port bits, which is correct: PORTB &= ~(1 << PORTB0) | ~(1 << PORTB5) | ~(1 << PORTB7); or PORTB...
Thursday, 28 May 2009 - 14:51
Super simple question
Hey, I'm coding some PWM stuff. I was wondering if someone has a general definition of what fclk_I/O is equal to. The datasheet just starts using it. Cheers, Tom
Wednesday, 27 May 2009 - 18:11
ADC only samples once
This might be another case of me thinking too much like a PIC, but please do tell; when I run my code, it samples once, outputs around 150 and doesnt update it ever again :( Not...
Sunday, 5 April 2009 - 23:41
SPI trouble :(
Hello again everyone, So now I'm having SPI trouble, but I promise this is the last one ;) The code does not ever display "Communicating..." which is the first step of the Master...
Wednesday, 1 April 2009 - 05:59
And then there were I2C problems too!
Hello again all :) This should hopefully be as easy a solution as my UART was! I'm connecting to a TC74 I2C temperature sensor. The required sequence for communication is in the...
Monday, 30 March 2009 - 04:08
Still having polling UART problems (ATmega644)
I looked at the data sheet and make up a well compiled program, and I also looked at the tutorial you guys have up here. Seems like everything I'm doing is right! In the main...
Friday, 27 March 2009 - 05:44
Newbie linking problems - really fed up
I'm trying to compile the AVRlib example RPRINTF. Ive copied the main and header files and I'm getting these really annoying messages that i dont know how to get around anymore...
Monday, 16 March 2009 - 03:46
TWI library existent?
I was wondering if there is an existent TWI library that is completely general to any/most Atmel micro controllers. For example, if I want a slave micro controller, I would...
Wednesday, 11 March 2009 - 05:08
Wireless Communication Problem
Hello, I'm currently in the development phase of a project I am working on that involves wireless communication. Essentially I have a UAV (unmanned aerial vehicle) that needs to...
Thursday, 12 February 2009 - 16:57
Trouble understanding AT90PWM
I am _brand_ new to AVR, so I hope this isn't a question with the most obvious answer in the world :) I'm starting a project in which I need to control 7 servo motors (which...
Tuesday, 10 February 2009 - 20:15