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Discussion Title Created date
Slowing down the AVR
Will the ADC and timer/PWM functions of the AVR still operate fully when running the AVR on a 100kHz clock eg?
Saturday, 3 February 2007 - 16:27
250kHz PWM ringing
What can be done to get rid of ringing of a 250kHz PWM signal? http://img530.imageshack.us/img5...
Friday, 2 February 2007 - 19:20
Need exact 3.75V and 1.25V
What is a good way to get 1.25V and 3.75V exact? I want to do differential measurements on the ADC. Is for example a simple LM317 good/stable enough?
Monday, 22 January 2007 - 10:48
Why no external Vref of 1V possible?
If I look in the datasheet of an ATtiny26, I read that the Vref min. of the ADC is 2V, while the internal Vref is 1.15V(bandgap), and 2.56V. Why no external Vref possible of about...
Friday, 19 January 2007 - 13:41
How measuring changes of 1.25mV?
How can I measure changes of 1.25mV in a dc voltage?
Tuesday, 16 January 2007 - 12:10
Toggle bit without changing other bits
I try to toggle a bit in 'flags' every time the program passes this code, without changing the other flags. mov temp, flags inc temp bst temp, 0 bld flags, 0 Is there a...
Sunday, 7 January 2007 - 14:03
Free running ADC ATtiny26 + ISR won't work
When I try to run the ADC in free running mode, it won't work/run (reads zero) When I let the ADC do single conversions it works (polling ADIF, reads data) After I enable ADC free...
Wednesday, 3 January 2007 - 17:47
Two buttons on a single i/o?
How can I hook two buttons to a single i/o? Only seems possible using the ADC and a voltage divider? But how?
Tuesday, 2 January 2007 - 11:02
Timer overflow poll
Can this be done in another way? Think this is the right way? wt2sec: in YL, TCNT1L in YH, TCNT1H ;delay at 2 seconds cpi YH, 255 ; if TCNT1 overflows brne wt2sec ?
Thursday, 14 December 2006 - 21:00
[ASM] Is this the same?
neg temp sub stepsize, temp "temp" is a negative number before executing this code. Has this the same outcome? add stepsize, temp
Monday, 4 December 2006 - 19:45
ATmega8L at 3.3V, ISP at 5V (blown?)
I have an ATmega8L at 3.3V, but my ISP cable is 5V, so 5V at the ISP pins (mosi,miso,sck), is the AVR now blown? Datasheet says Vcc+0.5V, but the device can withstand 5.5V max.
Saturday, 2 December 2006 - 18:27
[ASM] Is this correct? (difference between X and Y)
ser YL ser YH sub YL, XL sbc YH, XH movw XL, YL Calculating difference between X en Y. Result in X.
Tuesday, 28 November 2006 - 19:55