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What's Chan doing with PINB; in his subroutine here?
Won't compile on my compiler static void dly_us (UINT n) /* Delay n microseconds (avr-gcc -Os) */ {  do {   PINB; #if F_CPU >= 6000000   PINB; #...
Wednesday, 17 December 2014 - 00:51
Help with black box RL analysis?
I have been trying to reverse engineer a 2 terminal device and I'm stumped. Its a coil in a car strut. Reads 2.8 ohms and 4 mH with a meter. Neither goes to the metal strut body....
Monday, 27 October 2014 - 20:14
What's a line of code?
I think it's a line with a statement of a variable = expression. So the if{ is a statement, the 3 statements in the braces count as 3 statements. Stuff that generates...
Tuesday, 30 September 2014 - 01:30
Manual on, computer hold, computer off?
Looking for a link or schematic for a momentary pushbutton on latch. I guess if the avr turns on and turns on a pchan to hold the power on the gizmo, then the sw off button lets...
Sunday, 17 August 2014 - 18:15
Amps of a via?
I have a via punching thru from top to bottom layer. I assume this is equivalent to a rectangle of width=circum of via and length=depth of via. There are a bunch of these...
Thursday, 3 July 2014 - 17:25
[solved] CAN32 and Atmel can_lib anyone?
I've sent out a dozen of our little can boards with a can32 and an mc2551 and they seems to send and receive just fine. So now I'm working on yet another version and I cant make...
Monday, 16 June 2014 - 20:46
Jumpercap selftest for avrisp, dragon, jtagice?
Now that Atmel is all open to implementing Good Ideas from the AVRfreaks, I'd like to re-suggest my request for a jumpercap test for the avrisp, dragon, and jtagice. When...
Sunday, 4 May 2014 - 17:11
avrdude-arduinomega2560 timeout error?
Dear Fellow AVRfreaks. Please forgive this Arduino question, even though it concerns atmel computers. The arduino forums and sparkfun and adafruit forums have dozens of copies...
Monday, 7 April 2014 - 02:25
Atmelstudio62 on XP?
I guess this combo doesnt work? (I have xp on the machine at work). Anyone got this running?
Friday, 21 March 2014 - 14:46
Erase mega48pa in 32 pin tqfp soldered on the board?
3 prototypes. I think the pc house boogered the fuses, then set the lockbits. I might be industrious enough to stick 12V on the reset pin, but I dont have any way to parallel...
Wednesday, 12 March 2014 - 17:57
Can I read the pwm out on pb5?
Doing 400Hz variable duty pwm on timer1, mega1280, pb5. Can I read PINB & 0x20 to see if its hi or lo when the pwm is running? PORTB & 0x20? Or is the in and out stuff...
Monday, 10 March 2014 - 18:48
The world needs an ARINC 429 shield
The world needs an ARINC 429 shield. Preferably using a Holt IC chip with an SPI interface that isn't bitbanged. Can someone post a schematic that I could use with a proto shield?
Thursday, 30 January 2014 - 03:01

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