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Questions - avrdude

Failing to access AVR ATTiny13A with very slow clock (128kHz/128 or 128kHz/256) (avrdude: error: program enable: target doesn't answer)

I am trying to program an AVR ATTiny13A using a USBasp adapter (guloprog) and avrdude. Uploading the program and running it works fine the first time for a fresh ATTiny13A device, but re-uploading aga...
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Johannes Overmann

avr

avrdude

attiny

Votes: 0

Answers: 1

Latest Answer

How to unbrick the AVR with a very slow clock divider setting The problem is caused by writing CLKPR with a very slow clock divider setting (/128 or /256 with the 128kHz clock) in the program. After t...
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Johannes Overmann

ATMEGA328p interrupt not working when using avrdude

I'm trying to use light a led placed in PB0, when detecting the INT1 interrupt on an atmega328p without an external ocilator. I'm using avrdude to upload the code to the micro. This is the code: #defi...
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Rjuanez

arduino

avr

interrupt-handling

atmega

avrdude

Votes: 0

Answers: 1

Latest Answer

Ok i found some things in your code that should not be there. ISR(INT1_vect) { PORTB |= 0b00000001; // !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! // Please never use a delay function in an ISR...
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sunriax

Extract code from Adafruit ItsyBitsy 32u4 set up as a HID USB Keyboard

I recently found in my office a suspicious device which I plugged in a spare computer. It was recognized as a keyboard by the system, and started clicking and typing. Whether it is a malicious device,...
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javier

arduino

adafruit

avrdude

Votes: 0

Answers: 1

Latest Answer

Yes, you are looking for the -P flag, it needs the path to the serial device of the AVR when it's in its bootloader. As long as it is a normal itsybitsy, and not one that's been modified to work with...
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Jeff F.

Cannot see Arduino port up after uploading AVR program

I'm trying to learn how to do AVR programming with my Arduino using AVR libraries. I was able to successfully upload this blink program to my Arduino Micro using the Arduino IDE: #include <avr/io.h...
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Microbob

arduino

port

avr

avrdude

Votes: 0

Answers: 2

Latest Answer

The Arduino framework provides its own main which performs some initialization, such as calling USBDevice.attach. You are supplying your own main function, so you are responsible for everything, incl...
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ccrause

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