Type in the full discussion title or a part of it.
Discussion Title Created date
Are bitwise operations unsafe?
I've find in some threads some posts saying that it's not good using many |= or &=, because registers are cleared in the way or something like that. Can you elaborate a bit on...
Fri. May 27, 2011 - 11:56 AM
Adc and pin configuration help
Hi guys, a fast question: Do I have to setup adc pins as input? I don't see anything in the datasheet about this.
Tue. May 24, 2011 - 02:45 PM
2 Libs: Timers and 24-Hour Scheduler
Since I can't post code on avrfreaks project section (I'm using firefox), I'll share my projects links here: https://github.com/jvalencia80/atmega-timers and https://github.com/...
Fri. May 20, 2011 - 10:40 PM
Looking for a NPN transistor
I need it to be at least 3W power disipation and Ic > 0.5A Do you know a widely used transistor with those specs? It's just for driving 20x20mA led array Thanks
Tue. May 17, 2011 - 01:27 PM
Penalty for using 32bit variables?
I'm thinking on using some uint32_t variables, but wanted to know what speed penalty am I getting. Is it 4 times slower doing maths than 8 bit?
Wed. May 11, 2011 - 10:38 AM
Register names in several chips
I want to share my code with other AVR freaks, but as now, it just works only on several chips. I wanted to know if exists a table with the name of several registers for each...
Wed. May 12, 2010 - 05:44 PM
Port output speed
I've read in the pdf that reading a port takes some cycles, but nothing related about output. How much time does it take? 1 cycle like other instructions?
Mon. Apr 26, 2010 - 04:51 PM
About atmega128A programming
I've seen that the old atmega128 had ISP support (non jtag), but I can't find ISP support in the new atmega128A Is ISP obsolete? I wanted a 4k+ Ram device with ISP, but can't find...
Fri. Apr 16, 2010 - 11:28 AM
Small servo shake
Hi, I'm using my own timing library to drive some servos. Currently I'm testing it and it works, but my servo just shakes a very small quantity. Like a tick-tick-tick sound. This...
Tue. Apr 13, 2010 - 03:43 PM
Devel Board recomendation
Do you recommend a cheap/easy but powerfull board for my projects that it PCB pin compatible? I see lots of them... thanks
Mon. Jun 2, 2008 - 02:19 PM
static keyword problem
I have a simple class called for example MyClass. Now i declare an instance as static within a function. void example() { static MyClass tmp; } This code gives me an error like...
Mon. May 19, 2008 - 08:21 PM