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8 votes
1 answer
5k views

How does the call stack operated during an interrupt on AVR?

(Specific to the Arduino Uno...) What happens to the stack when an interrupt occurs on an AVR microcontroller and I call a function? Does the compiler inline the code? Does it cache the stack ...
Anonymous Penguin's user avatar
2 votes
2 answers
1k views

Using the arduino toolchain as a convenent way to get GCC - Can you disable the code-munging?

I've been using the Arduino toolchain as a extremely convenient way to get a complete GCC toolchain and build-system with basically zero effort a lot recently. However, I'm currently working on some ...
Connor Wolf's user avatar
  • 32.7k
7 votes
2 answers
17k views

How different is the Arduino language than Atmel Studio language? [closed]

I see that on the official Arduino website, the reference page contains the functions and vales you would use specified to the Arduino compiler. http://arduino.cc/en/Reference/HomePage What would ...
Aleatory's user avatar
  • 507
3 votes
2 answers
5k views

Memory management problems with ATTiny85

The setup is as follows: I have a little program to drive single color 8x8 led matrix using 595 shift registers that are supplied with data by ATTiny85 through USI as SPI Master. I upload program to ...
Tomek's user avatar
  • 33
11 votes
3 answers
17k views

How to discover memory overflow errors in the Arduino C code?

Several times I had some suspicious outputs on the Serial Monitor after uploading code to the Arduino: like eternal output of whitespaces or suddenly cut of strings or scrambled strings. Because ...
powtac's user avatar
  • 1,022
5 votes
2 answers
2k views

If YOU were starting out now, what PIC16F-compatible IDE and compiler would you choose, and why?

This is going to be a bit long as I wanted to cover all the obvious questions before they arise, give a rationale to some of my thinking, and prove I've done my groundwork! If time is short, skip down ...
lardconcepts's user avatar
-2 votes
1 answer
75 views

Adding a global int corrupts compiled code

I have a strange issue. I want to either increment a value every time the loop function is called or us a random value each time. Whether I use a global int for incrementing or set a local int to a ...
jeffminton's user avatar
5 votes
1 answer
923 views

Easiest way to get rid of __clz_tab in winavr compiled code?

I've ported a program from the arduino environment to a makefile build using winavr, which, in turn, is based on avr-gcc (just like arduino). However, my program started crashing, and after some ...
Adam Davis's user avatar
  • 20.7k
3 votes
1 answer
8k views

How does the Arduino IDE/build system work?

How does the Arduino IDE/build system work? I noticed that they use the avr-gcc in the background, but what do they do on top? They seem to have their own "kind of C" language that transforms into ...
Johan's user avatar
  • 2,395
11 votes
3 answers
15k views

Programming for the Arduino without the Arduino IDE.. but with the provided libraries?

I recently started a new project using my Arduino that's been collecting dust for a while. Along with the physical board collecting dust, so has my copy of avr-gcc and the Arduino libraries. I can ...
Earlz's user avatar
  • 3,426