Type in the full discussion title or a part of it.
Discussion Title Created date
SD Card Write Speeds
Hi All, I am interfacing with an SDHC Class 6 card using an Atmel w/SPI, and getting some interesting results when measuring writing speeds. If I write a 40MB chunk of data, one...
Saturday, 2 January 2010 - 14:46
AVRDragon connections
Hi, I'm a little confused about connecting the dragon to a target board. The user guide says: Quote: "Note: If the target board is powered by external power source, no connection...
Friday, 25 May 2007 - 09:14
Code sections
Hi, I'm trying to write a program in the bootloader section, using the .section attribute. The program will be writing to the application section, and will therefore overwrite...
Tuesday, 1 May 2007 - 08:25
Storing strings at specific PGM locations.
Is there a way to specify that a string must be stored not only just in program space but also in a specific section within program space? Specifically, I want string constants...
Wednesday, 25 April 2007 - 14:20
AVR Simulator and avr/boot.h
AVR Simulator (v1 and v2) seems to crash when I try to use the AVR Mega128 bootloader features. I've written the following code (which isn't meant to do much, but does compile...
Sunday, 22 April 2007 - 01:41
Atmega88 Prescaler
I'm trying to reset the Timer2 prescaler on an Atmega88. This should be acheived using the GTCCR register. The three bits in this register, and their functions are as follows: Bit...
Thursday, 4 January 2007 - 22:48
Typecasting macro's in ASM
I don't have a lot of experience with ASM (normally program in C). Is there a way to type cast expressions in macro's for pre-processing? For example: .macro ms_to_r16 ldi...
Monday, 11 December 2006 - 22:43
Advice: USB to Parallel w/ programmers
My university uses old parallel port programmers for working with Atmels (AT90S8515s I believe). My laptop has no parallel port, but I'd like to be able to use it for this...
Wednesday, 1 November 2006 - 09:00
Mega16 Asynchronous Interrupt
Hello fellow avrfreaks, I'm trying to use the asynchronous interrupt (INT2) on the Mega16, but I'm having trouble with false positives. Sometimes running a function with this...
Monday, 8 May 2006 - 11:19
Query: Wake up from power down (Mega16L)
I'm using external interrupt 2 (asynchronous edge triggered interrupt) to wake up a Mega16L from Power Down Mode. The chip is being clocked using a 4MHz external crystal...
Wednesday, 26 April 2006 - 10:15
TWI Silent
I'm trying to get TWI working to communicate with a Real Time Clock, just for fun. Unfortunately I'm not having much luck. (Even using peter fleury's I2CMaster.h) I'm pulling SCL...
Sunday, 16 April 2006 - 06:58
AVRDude & LPT Programmer Error
Error using a home made LPT programmer (dt006). Works perfectly on the computers at university. Running on my computer at home (Windows XP SP2...
Monday, 27 March 2006 - 08:23

Pages