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Circuit Conundrum
Hey, Attched is a diagram of a small circuit that I just can't get my head around. If you actually build this circuit (it does not simulate) and put anything above 1V across it,...
Friday, 12 February 2010 - 22:22
Input Capture on Atmega8
The long term goal is Manchester decoding, I am trying to get the ICP1 pin of an Atmega 8 to measure the half time period of a pulse width. I am running this on Proteus simulation...
Monday, 25 January 2010 - 22:51
Input capture help required
Hi I'm working on a little weekend project.. I want to measre the frequency of an appied square wave using ATmega168. I'm simulating this all on Proteus. In the end, I want to use...
Sunday, 1 November 2009 - 13:24
Problem with SPI in data sheet
Hi, I am working on ATmega8. I wish to connect two processors together, one as master and the other as slave. I took the code straight from ATmega8 data sheet but it does not work...
Tuesday, 20 October 2009 - 15:34
mega168 USAT with VB.NET headache [solved]
Hi, I have a code running on ATmega168 and a terminal program running on VB.NET 2008 Express. I can sucessfully send data from PC to AVR and back again. In that: I send data from...
Friday, 15 May 2009 - 09:28
Bi-colour LED brain teaser
Hi, My problem is I have a device containing a PIC 12F509 which controls an LED. I want to replace this LED with a bi-colour device, one that is "inverse parallel" and therefore...
Friday, 8 May 2009 - 15:33
pointers to arrays or something?
Hi, Not sure exactly what to call this problem. Basically, I have a group of integer arrays: const int FirstArry[] = {1,2,3,4,5}; const int SecondArry[] = {1,2,4,8,16); const...
Saturday, 7 March 2009 - 23:22
ATmega128 -> ATmega168 eeprom problem
Hi, I'm working on a project to convert some ATmega128 code over to ATmega168 processor (using GCC compiler and AVR studio). Now I think I have most of the code converted, but am...
Thursday, 26 February 2009 - 15:14
TQFP-32 ISP adaptor
Hi, I am working on a design using an ATmega168 (TQFP-32). Space is limited on the board and I am wondering if any one knows of, or knows where to purchase, a programming header...
Tuesday, 10 February 2009 - 14:24
Replacment for ATmega128
Hi, I have a project based on ATmega128 uC. It is a TQFP_64 package, but I only utilise 6 I/O lines. I need to replace this uC with a code compatible device that costs less per...
Thursday, 11 December 2008 - 11:07
strings, pointers help..
Hi, I have some sample source which displays a 32bit hex string on an LCD. What I want to do is say: if the string == "DEADBEEF" then flash_Led(); However my knowledge of...
Tuesday, 25 November 2008 - 13:27
Debounce (is this right?)
Just had a little play with switch debouncing, is this method acceptable? #include #include "LCD_Driver.h" int main (void) { DDRB = 0x00; // PORTB INPUTS...
Wednesday, 5 November 2008 - 09:48

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