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How can I compare two bits?
I want to compare two bits0. Bit0 of "data" with bit0 of "switch". Which instructions can I use? sbrc/sbrs?
Monday, 26 June 2006 - 09:22
No analog switches in AVR
Would that be a good idea to put analog switches (even popless/clickless) in the AVR? Very nice for audio projects. (audiorouting and so on) What will happen when you try to route...
Sunday, 25 June 2006 - 21:27
What happens at 10bit 38kHz
It seems not possible to have 10bit resolution at 38kHz samplerate, but will the ADC drop back to 9-bit or 8bit? Lets say I overclock the AVR a bit?
Friday, 23 June 2006 - 13:07
[Q] Anyone did an AVR PC project?
I wonder if anyone build for example a soundcard or a radio/TV card, or some kind of PC card based on AVR?
Monday, 29 May 2006 - 21:24
EEPROM address counter (0-511)
I use r14/r15 for a 9bit EEPROM address counter. Now I want to move up one location. ldi temp, 1 add EEadrsL, temp ;up to next EEPROM address ldi temp, 0 adc EEadrsH, temp Is...
Sunday, 28 May 2006 - 17:47
W "pointer" or Z on stack
I need to save the Z pointer, but now I use. movw WL, ZL ;save Z in W The W "pointer" (not a pointer) is register pair r24/r25. (need more registers.) But how can I save the Z...
Sunday, 28 May 2006 - 11:14
LED, hi-Z and GND, or hi-Z and +V
I wonder what happens to a LED connected one side to GND other side to hi-Z of the AVR and/or one side to +V and hi-Z? Does the LED stay off always when there is a hi-Z connection...
Monday, 22 May 2006 - 17:21
Bargraph shows gaps because ADC skips
I have a slidepot at the ADC of a mega8, and a GLCD showing a bargraph when I move the pot up and down, but when I move the pot fast up the bargrap start to show gaps of 1 bar now...
Saturday, 20 May 2006 - 12:19
GLCD contrast with a digipot
I have a graphic LCD 128x64, and I want to control the contrast with a digipot (fully software controlled system), but the voltage accros the now 10k analog pot is 9.73V (Vee...
Monday, 15 May 2006 - 20:00
LCD databus + buttons
Can I hook buttons on the same pins as a LCD databus is hooked? What happens when I sample the buttons? The LCD display will be connected to an input (with pullup on) for a...
Saturday, 13 May 2006 - 12:24
How to synchronize two electromotors? (PWM)
I have two 9V Lego electromotors, I want to let them run synchronicly using PWM. How can this be done? I have two control IC's type SN754410. I think some kind of feedback, or...
Thursday, 11 May 2006 - 08:16
What must happen with the M line? (controllerless LCD)
Hello I don't understand two thing of this timing diagram. 1. What must happen with the M line? 2. When does the data change? (when clock goes/is down, or when clock goes/is up?)...
Tuesday, 25 April 2006 - 13:18