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Output ADC on Atmega324PA-PU always gives max value
I know I'm double-posting, but I realized I actually had a possible answer to the new question, and didn't want to make anyone confused by a late edit. ahBurt wrote: I found out...
Tuesday, 8 June 2010 - 13:58
Output ADC on Atmega324PA-PU always gives max value
js wrote:Quote:Aref is connected to GND...... Aref should be connected to the same level as AVcc Both incorrect. :) Aref should just have a 100nF cap to ground (see data sheet),...
Tuesday, 8 June 2010 - 13:49
STK600 : Short circuit or too much current with Leds...
All the "right" answers, which means I'm out of ideas, sadly. :( Anyone else?
Tuesday, 8 June 2010 - 13:37
Output ADC on Atmega324PA-PU always gives max value
ahBurt wrote:Dear TrainzStoffe, AVCC is directly connected to VCC, Aref is connected to GND. Aha! There's your problem. Aref should be connected to the same level as AVcc (for...
Tuesday, 8 June 2010 - 08:19
Overrun error in UART communication
As always with the UART on an AVR - check your frequencies! iirc, 9600 baud on an 8MHz AVR gives a too big timing error, which would cause corruption. There's numerous accounts of...
Tuesday, 8 June 2010 - 08:11
STK600 : Short circuit or too much current with Leds...
Lighting up 6 leds would draw a significant amount of current, depending on how the kit is built (I don't have it, and I haven't checked the schematic) - at 20mA each, they'll...
Tuesday, 8 June 2010 - 08:02
Output ADC on Atmega324PA-PU always gives max value
The first thing to check is your analog supply voltage (Avcc) and reference voltage (Aref) - are they connected to the supply? Also, I'm not seeing the code to select which analog...
Tuesday, 8 June 2010 - 07:56
Is it bad to completely fill program flash on AVR?
Oh, if you're still doing prototype work, don't just jump up one level (to the '88 ), jump all the way to the 168 or the 328. I'm a consultant on a project where they've upgraded...
Tuesday, 8 June 2010 - 07:14
How to drive an IR LED ????
Yep, there it is. You forgot the base resistor (between PB0 and the base of your transistor) - right now you're relying on the AVR to limit that current... not a good design...
Friday, 4 June 2010 - 16:17
Need help with a compact power source for a project
ArtemRu wrote:Alwlch, mAh is not a problem. I am talking about max current a battery can giveout, not the stored charge. Ah, but it is, partly. The two are inter-related. The...
Friday, 4 June 2010 - 15:51
ATmega8535 help!
david.prentice wrote:No. I disagree. I'm assuming you're disagreeing with me. You aren't, just so you know. :) I was a bit unclear, trying to phrase my response in a way that...
Friday, 4 June 2010 - 15:28
ATmega8535 help!
Quote: You can design your program in Swedish or English. Whichever you are happier with. If you know the Java language, use Java. Ah, but that would mean separating the design...
Friday, 4 June 2010 - 11:21

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