That lasted only until I terminated the attempt to burn the bootloader.But you need to have a programmer board - which could be a separate working Uno.
If youre going to burn the bootloader to your Nano you should select Tools Board ArduinoGenuino Uno, and then always use the board as an Uno after that. Bootloader Arduino Nano Free Up 1This will free up 1.5 kB of flash memory on your Nano in addition to fixing the watchdog reset bug. I was having issues when trying to upload an example sketch for a 2.4 spi display. The compiler kept throwing errors. Bootloader Arduino Nano Update To TheWith my limited knowledge on the subject I thought perhaps it might help to update to the new bootloader. I used an Uno as the programmer, and following instructions here The upload began then seemed to hang with the (what I call) traffic led flashing at a consistently high rate. Can anyone help me restore this Nano to operation Thanks for any suggestions. The bootloader has absolutely nothing to do with compilation. Updating the bootloader will never help with a compilation error. The only error that can be solved by updating the bootloader is an upload error. Quote from: flagtrax on Mar 23, 2019, 05:20 pm, and following instructions here From the Instructables: Quote Now connect the two arduinos together, to do this without female-male jumper cables was time consuming, you have to be VERY CAREFUL and take your time bending the wires, other wise you may short your circuits. Bootloader Arduino Nano Driver To BendMake sure they grab on very tightly, use a small flat head screw driver to bend them. ![]() After that, please do this: (In the Arduino IDE) File Preferences Check the checkbox next to Show verbose output during: upload Click OK Tools Burn Bootloader After the Burn Bootloader process fails, youll see a button on the right side of the orange bar Copy error messages. Click that button. In a forum reply here, click on the reply field. Press Ctrl V. This will paste the Burn Bootloader output between the code tags. Move the cursor outside of the code tags before you add any additional text to your reply. That instructable says to set the board selection to the target board before burning the bootloader, you didnt mention it, but thats what I did. Reading 100 0.01s avrdude: Device signature 0xffffff (probably.avr8xmega) avrdude: Yikes Invalid device signature. Double check connections and try again, or use -F to override this check. That is correct. Quote from: flagtrax on Mar 23, 2019, 09:12 pm Code: Select avrdude: Device signature 0x000000 (retrying) This error, and your rapidly blinking LED, could be caused by incorrect wiring. Please double check all your wires to make sure theyre correct. Quote from: flagtrax on Mar 23, 2019, 09:12 pm I hope I did that right.
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