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Must catch first edge of unknown signal
How can I detect the first edge of an unknown signal? The first edge can be falling or rising. Can I use the external INT, or an i/o in hi-Z? Dunno.
Thursday, 17 August 2006 - 18:43
Software PWM, ISR littlebit influence
I generate a soft PWM signal, using a timer ovf interrupt. Also controlling a GLCD (bargraph) and reading the ADC. When I change the wiper of the pot I see the PWM signal a...
Monday, 14 August 2006 - 19:11
How does software modulating works?
How does modulating two signals works? for example a sinewave and voicedata? Voice modulated on the sine. I know how can add or substract signals, but how modulate them? Can it be...
Saturday, 12 August 2006 - 22:44
Compare with -2?
Is this the way to compare with -2? (16bit.) ldi temp, low(-2) cp tempLo, temp ldi temp, high(-2) cpc tempHi, temp -2 is 65534 from 0?
Tuesday, 1 August 2006 - 11:15
I2S via the USI possible?
I wonder if it is possible to use an AVR with USI for I2S? I2S dataspeed is min. 2MHz as I understand.
Monday, 31 July 2006 - 18:52
Pot at ADC, digit not stable
I have a potentiometer 10k connected to the ADC (mega8) I have a 3 digit counter, but sometimes the value is between a digital value, so you see the LSB digit toggeling fast. For...
Sunday, 30 July 2006 - 11:40
Why no Attiny24?
I was looking for the ATtiny24, where can I buy these? Digikey has no.
Saturday, 29 July 2006 - 15:33
I read this in an ATtiny2313 datasheet. Quote:Half-duplex Asynchronous Data Transfer By utilizing the Shift Register in Three-wire mode, it is possible to implement a more compact...
Thursday, 27 July 2006 - 18:37
ADXL accelerometers analog or PWM?
Hello I wonder what is better/easier to use, an analog accelerometer or a PWM type? Anyone experience in this? Thanks.
Monday, 24 July 2006 - 13:08
How does an audioscope work?
I have a 7x32 LED dotmatrix display and I want to show audio (signal) on it as an audioscope, like Winamp has for example. (not the spectrum analizer, not a VU meter.) How does...
Thursday, 6 July 2006 - 18:35
Best way to flip bits?
What is the best/easiest/simplest way to flip bits? With bst/bld? I want to flip bits 2 and 4 for example.
Thursday, 29 June 2006 - 14:53
Preset in OCR1A problem
Is this correct? lpm temp, Z+ out OCR1AH, temp lpm temp, Z out OCR1AL, temp I use OCR1A interrupt. But how must I load the a preset? Does it matter when?
Monday, 26 June 2006 - 20:08