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Global variables in irq handles
My state machine depends on the IRQ handler updating an event counter. The event counter is global. It is written to in the IRQ handler and read by main(). My problem right now is...
Monday, 5 November 2007 - 16:56
Code only works with -O3
I'm using avr-gcc.exe (GCC) 4.1.2 (WinAVR 20070525) for a project that relies heavily on T/C2 in an atmega48. This project only runs when compiled with -O3. I have tried -O2 and...
Monday, 5 November 2007 - 14:15
WinAVR distribution
Are there any restrictions on redistributing the WinAVR installation file? My company is releaseing some reference design code, and we'd like to say that the code works with the...
Wednesday, 15 August 2007 - 12:40
How to get avr-gcc 3.4.3
A subcontractor has compiled their code with avr-gcc 3.4.3. When I recompile with 4.1.1 everything compiles OK, but the functionality is not as expected. Also, the resulting .hex...
Friday, 20 July 2007 - 11:44
Couldn't reserve space for cygwin's heap ???
I have multiple installations of Cygwin because it comes with both WinAVR and Xilinx tools in addition to the stand-alone Cygwin installation I run. After the latest installations...
Tuesday, 10 July 2007 - 14:47
Size of TQFP44 die flag/package GND
Hi, I'm using a Mega16 in a TQFP package. The routing becomes easier if I can pull some of the lines towards the center of the chip and out through the corners. You see this for...
Monday, 9 July 2007 - 12:55
Boot loader fundamentals
Is there any fundamental difference in the way the bootloader works in the mega16, mega88 and mega325? I work with a new project where I could use either one. It all works on the...
Tuesday, 26 June 2007 - 20:59
Reset circuit
Hi, I'm using a mega16, Vdd=5V, internal 1MHz+64ms. I'm looking for a recomended reset circuit for this setup. I'll probably be using a brownout. I'd prefer using only an RC...
Tuesday, 13 March 2007 - 21:38
Running Studio without installing
Hi, I'm going to host a seminar series where the participants will be programming MCUs. To avoid spending a lot of time on installing software I'd like to run AVRstudio stand-...
Tuesday, 20 February 2007 - 12:55
Running Studio and AVR GCC without installation
Hi, I'm going to host a seminar series where there will be some MCU programming. I was hoping to avoid spending time on the participants installing AVRSstudio and AVR GCC on...
Tuesday, 20 February 2007 - 12:32
STK501 and Mega325
Is STK501 the expansion board of choice when programming for the atmega325? Thanks, Børge
Friday, 26 January 2007 - 21:39
New project: DSA control of CD drives
I've just created a new open-source project that implements DSA control of a CD drive. The project is at: https://sourceforge.net/projects... At present it supports most of the...
Friday, 22 September 2006 - 18:50