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rc5 Decoder for atmega16
You might want to look at this project which forwards IR commands from a NEC remote control to serial: https://www.avrfreaks.net/index.p...
Tuesday, 29 November 2011 - 09:24
How to implement a 6.528Mhz frequency
Ow, a FMUL bug :oops: Must be due to being sunday and early in the morning cheers :P
Sunday, 27 November 2011 - 18:34
How to implement a 6.528Mhz frequency
6.528 * 2 = 13.56 Mhz which is a fairly common crystal frequency , probably available at your favorite components supplier.
Sunday, 27 November 2011 - 07:44
Need some LCD debug help.
Imo its not a good idea to use an LS164 and a standard diode because the levels are on the edge for meeting the requirements for digital 'low' ( max. 0.4 Volts). If this is for...
Sunday, 27 November 2011 - 07:38
AVR Dragon problem
Is that a brand new Mega ? If yes it is setup to use the internal oscillator. If no, it might have been fused to use an external crystal. In that case connect a crystal ( 1 - 10...
Sunday, 27 November 2011 - 07:27
AVR assembly (AS4) and using .ESEG
Most AVRs also have a fuse to save the EEPROM contents over a flash programming cycle. If that fuse is not set the EEPROM will be erased when the flash is programmed. The fuse is...
Saturday, 26 November 2011 - 19:20
XMEGA output oscillating
I've used the 128A3 , the 192A3 and the 256A3 in quite few projects and can confirm that this is surely not a chip problem, but probably a weak or disconnected GND or Vcc pin. I...
Saturday, 26 November 2011 - 17:29
Choosing an ATTINY
I consider the ATTinys being *real* AVRs :P and especially the Tiny25-85 series is able to do things where a Mega48-328 would simply be overkill. And i really like the...
Friday, 25 November 2011 - 08:50
rc5 Decoder for atmega16
I normally use an arduino 2009 with a terminal program to find out timings of an unknown NRZ coded signal . The process involves a pinchange interrupt fired by the receiver ( IR...
Thursday, 24 November 2011 - 21:34
ASM generated from AVRstudio ..
This is a little wait routine which handles very wide ranges of delay in ASM , originally stolen from the Apple ][ ROM by Steve Wozniak. Call it with a value in r17 : wozwait:...
Thursday, 24 November 2011 - 21:11
Choosing an ATTINY
2313 should be pretty cheap :P Its around 1.50 Euros here in sample quantities.
Thursday, 24 November 2011 - 21:03
AVR Sleep mode and indicator LEDs
Depends very much on your hardware but generally i'd say neither . Switch them to input with pullups disabled. The more recent AVRs have a bit in MCUCR to disable all pullups in a...
Thursday, 24 November 2011 - 20:30

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