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Discussion Title Created date
How measure reset time?
How can I measure the reset time period?
Monday, 5 October 2009 - 14:09
msb to carry?
How can I transfer msb to carry without shifting? With rol I loose msb.
Saturday, 3 October 2009 - 13:54
How multiply 8-bit value with Z?
How can I multiply an 8-bit value with a word pointer (Z)? For example, if value = 5 then Z must increment with 10 words. In other words; value * adiw ZH:ZL, 2 How can this be...
Saturday, 3 October 2009 - 10:13
How to add pos or neg value to X?
When the program adds a positive number to XL with add, XH must inc when XL overflows, but when the program adds a negative number to XL, what will happen to XH? This works. ldi...
Monday, 14 September 2009 - 13:19
ADC free running and multiple channels problem
Hi. I try to sample two ADC channels (4 and 5) and running in free mode, but this does not work well. (AVR = ATmega88-20PU) ldi temp, 0b01100100 ;select ADC4, Vref = AVcc sts...
Thursday, 6 August 2009 - 21:59
Why On/Off modes on a KS0108 LCD?
I wonder, how can I switch an LCD with KS0108 controller On when it was switched Off, and visa versa? In the init I have. (lsb=1 On, lsb=0 Off.) ldi temp, 0b00111110 ;switch...
Saturday, 25 July 2009 - 08:42
How to set fuses ATmega88@20MHz xtal?
I am using a 20 MHz crystal on an ATmega88, but how to set the fuses (CKSE)? Datasheet talks about a Low Power Crystal Oscillator and a Full Swing Crystal Oscillator and a Low...
Wednesday, 22 July 2009 - 18:48
AVR with MP3/AAC codecs build in?
Atmel should bake lowcost AVRs with MP3/AAC codecs and USB build in, could be a hit? :roll: 8)
Friday, 5 June 2009 - 16:57
Idea: Stack as randomizer/random generator?
If you have a fairly complex program (different timers, ISRs, push/pops, lots of rcalls.), can you use the stack as some sort of random generator? :roll:
Monday, 30 March 2009 - 13:02
Why cp/cpc low/high('#') give problem?
ldi temp, low('#') cp EEadrsL, temp ldi temp, high('#') cpc EEadrsH, temp brne noEnd Why give this a branch problem? It branched at 36 instead of at the # in EEPROM.
Monday, 16 March 2009 - 17:51
How to estimate the frequency of a loop?
How can I estimate the frequency (or period time) of a loop with lots of branches and jumps, etc.? I've got a PWM loop with 3 PWMs and animated across 7 LEDs, the loop is 40...
Sunday, 15 February 2009 - 13:10
Wiper digipot per element or skip
Is there a hearable difference between skipping 10 elements of a digital potentiometer or move through the 10 elements (sliding wiper)? You can set a new address of for example 10...
Wednesday, 11 February 2009 - 22:43