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UDRE issues
Using mega128a & trying to spit out simple test...xtal 14.74x MHz, all initialized ok for 9600-8-n-1 outreg ubrr0h, zero ldi temp, uart_speed ;set to...
Monday, 26 July 2010 - 07:26
Not sleeping well
I want my mega88 to stop, halt, go no more, quit, not resume (unless you cycle power) cli ;kill all interrupts sts pcmsk2, zero ;turn off PCINT18 sts PCICR, zero ;kill the...
Sunday, 13 June 2010 - 03:09
pin change IRQ --what is considered a change?
If I use the pin change interrupt (mega88) & am responding to a pin change interrupt (this is working so far), obviously no nested interrupts will occur (unless I enable...
Wednesday, 26 May 2010 - 06:42
quick question about noise reduction mode
I am embarking on using the A/D noise reduction mode. I've looked through the datasheets & have the basic info. I am not interested in using any A/D interrupts, but...
Sunday, 28 June 2009 - 00:49
built in temperature sensor
Does anyone have a list of which AVR part numbers have the temperature sensor built in? I can't really find a list on Atmel's site. I'd at least like to know which of the Mega...
Saturday, 20 June 2009 - 05:08
Keeping Track Of time with Atmega168
This is a headline on the main page---but where is the video/tutorial---couldn't find it, unless i'm suffering from brownout. Hoyt
Wednesday, 6 May 2009 - 23:32
spm page buffer
I am having a bad time trying to get the spm buffer to take my data---set r1=r0=4, for example, & buffer address to 0, write the page buffer , write the flash====all I get is...
Sunday, 29 March 2009 - 14:48
Self programming mega88 - asm
[cliff: this thread has been split off from a "dead" thread in Off Topic] Hello I would like to use SPM to store a table of data at the end of my program (rather than hard coding...
Tuesday, 24 March 2009 - 14:06
Bray'sd terminal--misses incoming characters.
Hello: I am running 57600 baud, flat out & spewing in about 7500 characters...I found that some of the last 50 or so characters were missing, always as though the end of the...
Monday, 2 March 2009 - 16:58
dividing by multiplying
Hello: Does anyone have a good weblink describing common assembler division being performed by using multiplcation (of the inverse), with all of the benefits of using powers of 2...
Sunday, 18 January 2009 - 16:11
Determining values within a range.
Hello: Using assembly, is there a neat way to determine whether two byte variables (say A & B) are within N (a constant) number of counts of one another (say for example, 5...
Sunday, 14 September 2008 - 09:11
Breadboarding strips
Hello: I am designing a small protoboard. I want to use some breadboard blocks (usually white, where you plug in the wires in the holes). I also need a strip section where the...
Sunday, 8 June 2008 - 07:38