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Newbie looking for code help.
Just to get this right... you want to start a full-blown project without even being able to light a single LED in the first place? That's like driving Nascar without knowing the...
Thursday, 9 December 2010 - 12:19
[ASM] DOGM132x-5 over SPI on ATmega8820AU
@John: yes I did - and now (with SPI interrupt switched off) it works. I can now send characters defined column-by-column in (ATmega-internal) flash memory to the display and have...
Thursday, 9 December 2010 - 00:16
[ASM] DOGM132x-5 over SPI on ATmega8820AU
Err... now, I first send, then directly wait (what you would *not* recommend) for SPI send to complete, then read the byte to clear the flag and continue with normal code. This...
Wednesday, 8 December 2010 - 18:06
[ASM] DOGM132x-5 over SPI on ATmega8820AU
Thanks a lot for all the input - with that and some more debugging in the simulator and on hardware (by leds lighting up - or not), I now have at least *something* on the display...
Wednesday, 8 December 2010 - 17:12
led's equalizer
What is an "led's equalizer"? What are you trying to do?
Wednesday, 8 December 2010 - 01:17
button debounce characteristics
For debouncing, I rather poll more often to "catch" the bouncing better. A better way of course is making the changing button input trigger an interrupt - so you definitely get...
Wednesday, 8 December 2010 - 01:11
[ASM] DOGM132x-5 over SPI on ATmega8820AU
Hi again! Oliver, I changed the project to (hopefully) match your tips and still, it doesn't work. Where "doesn't work" in this case means it doesn't even run all the way through...
Wednesday, 8 December 2010 - 00:54
[ASM] DOGM132x-5 over SPI on ATmega8820AU
Tried something new: deactivate SPI and do it all by hand. Idea is this one: take the byte to send, LSL it, output the carry bit and do a high-low-cycle of the clock to make the...
Tuesday, 7 December 2010 - 01:29
[ASM] DOGM132x-5 over SPI on ATmega8820AU
I found another thing that didn't fix it: I wasn't using the CS pin of the display. Now using it with no change. I attached it to /SS (and made that one an output in the process...
Monday, 6 December 2010 - 23:57
[ASM] DOGM132x-5 over SPI on ATmega8820AU
Switched the order of checking and sending over SPI (again with a waitloop, not the is-free-check because it fails) and added various amounts of initial waiting time before...
Monday, 6 December 2010 - 23:05
DMX to PWM receiver for led dimming
DMX (as read here: ) seems to be UART-based and quite simple - my quick guess is any AVR will do for decoding that, as long as it clocks fast...
Saturday, 26 June 2010 - 10:48
control temperature for bga rework
Guessing by "termopare" you mean this: I suggest you use two Op-Amps to get a voltage of e.g. 0-5V, feed this to one of your AVR's analog...
Saturday, 26 June 2010 - 10:26