If the controller resets externally for some reason while writing the code, AVRdude gets stuck in an infinite loop #3
Description
Hi,
I am developing a special Arduino Compatible board with a slightly different communication system for programming. I can't share the details of the same here, but while making the programmer code and using it with AVRdude, I realized that there is a bug with the source avrdude. I noticed the bug due to the messy communication system I am using.
To replicate the same, you will need an Arduino, and a compiled hex file with relatively large size (2 to 4kb should be perfect).
Exact conditions for error
- Use the following code to start upload to the Arduino
./avrdude -c arduino -p m328p -P /dev/cu.usbmodem1411 -U flash:w:.hex - Keep you hand ready on the reset button of the Arduino.
- As soon as avrdude goes into write mode press the reset button.
- Do not release the button until avrdude starts giving the error
avrdude: stk500_recv(): programmer is not responding - Leave the reset button.
The code gets stuck in the same loop and keeps printing the error message every 1 second.
I know I can fix this for myself by resetting the board again at the right time, but then again, I feel that the code should be able to handle this and at the least exit so that it does not claim system resources.