![]() ![]() The bootloader burn test was intended to rule out some of the problems. The bootloader is just normal program as sketch is also. Things which can affect this are: driver on PC, USB cable, HW problem with USB/serial circuit, SW problem (if genuine Arduino - ATmega16U2 has firmware which can be corrupted). No activity on Tx/Rx LEDs or better no successful loopback test means that no data can reach the ATmega2560's serial port. On-board USB/serial transceiver is ATmega16U2 (if genuine). ![]() The bootloader resides in the ATmega2560 chip and it serve programming via serial port on ATmega2560. The bootloader has no impact to the problem. If anyone knows exactly what this set of failures is representative of, your help would be greatly appreciated This is just more information to hopefully narrow down the problem. Neither was the correct configuration, I think it was right albeit non-functioning the first time. Just in case the guide was wrong, I also tried keeping the board as Nano and burning bootloader and plugging in the Mega and electing its port before burning bootloader. Reading | # | 100% 0.02sĪvrdude: Device signature = 0x000000 (retrying)Īvrdude: Yikes! Invalid device signature.ĭouble check connections and try again, or use -F to override Lock 0 0 0 0 no 1 0 0 9000 9000 0x00 0x00Ĭalibration 0 0 0 0 no 1 0 0 0 0 0x00 0x00ĭescription : Atmel STK500 Version 1.x firmwareĪvrdude: AVR device initialized and ready to accept instructions Memory Type Mode Delay Size Indx Paged Size Size #Pages MinW MaxW ReadBackĮeprom 65 10 8 0 no 4096 8 0 9000 9000 0x00 0x00 avrdude: Version 6.3, compiled on at 12:00:53 I failed with invalid device signature (0x000000). Then I set my board to Arduino Mega, keeping the port the same, and tried Burn Bootloader. Nano | Megaġ0uF capacitor between Nano reset and GNDĪfter wiring was complete I set my board to Arduino Nano and port to the Nano's port (it was the only one plugged in anyway), and flashed ArduinoISP. Started with this wiring first, an adaptation of this guide: Įdit: I made a mistake in this wiring, D11, D12, and D13 aren't MOSI/MISO/SCK on the Mega2560. Can anyone offer advice on what the issue may exactly be and troubleshooting steps? ![]() But I want to troubleshoot this more instead of throwing my hands up and buying a new one (which is indeed the step after this). I think all these things point to the ATmega16U being busted on the Arduino, information which I found from other points on the internet. Removed all wires hooked up to my Arduino except for USB and tested (didn't work) Tried flashing another program (didn't work, seems program agnostic) Tested RX/TX echo with Serial monitor (didn't work, no RX/TX lights) Tested flashing on another Arduino (worked) Starting the Serial Monitor doesn't reset the Arduino. The RX and TX lights never light, when programming or otherwise. The "L" light only blinks once on startup. Other behavioral peculiarities surrounding this issue: System wide configuration file is "C:\Program Files (x86)\Arduino\hardware\tools\avr/etc/nf"Īvrdude: stk500v2_ReceiveMessage(): timeoutĪvrdude: stk500v2_getsync(): timeout communicating with programmerĪn error occurred while uploading the sketch My board is recognized properly by the Arduino IDE as a mega2560, but when trying to upload I get the following text (Extended output) (each timeout takes a long time): avrdude: Version 6.3, compiled on at 12:00:53 All the symptoms point to broken hardware, but on the other hand I wasn't doing anything other than plugging/unplugging my board around the time of the issue. I have an ATmega2560 which I was able to flash to until recently. ![]()
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