About upload bootloader to Atmega32u4.

Development Tools Uploading
1

Hi everyone,

I tried to upload bootloader to Atmega32u4 but i could not succeed. Let me explain what i did.

1- I connected my UNO to my PC and opened Arduino IDE.

2-Open--->Examples--->ArduinoISP

3-I uploaded to my UNO.

4-I connected UNO ICSP pins(except RESET pin) to my Atmega32u4 pins like this:

gnd-----gnd d10-----reset
mosi----mosi sck------sck
vcc-----vcc miso----miso

5- Tools----->Arduino as ISP

6-Burn bootloader.

But i could not do it correctly unfortunately. :frowning: I searched the forum. Some people were like me. I copied
the mesage and i am goig to paste here.

Is there anybody to help me about this subject?

thanks fo help and about my poor english..:slight_smile:

avrdude: AVR device initialized and ready to accept instructions

Reading | ################################################## | 100% 0.00s

avrdude: Device signature = 0x000000 (retrying)

Reading | ################################################## | 100% 0.00s

avrdude: Device signature = 0x000000 (retrying)

Önyükleyici yazdırılırken hata oluştu.
Reading | ################################################## | 100% 0.01s

avrdude: Device signature = 0x000000
avrdude: Yikes! Invalid device signature.
Double check connections and try again, or use -F to override
this check.

avrdude done. Thank you.
2

The connections you wrote look good. The process you're using is good.

The one thing you might be missing is that it is sometimes necessary to connect a 10 uF capacitor between the reset and ground pins of the Uno. However, I think the problem that would be caused by the need for a capacitor will cause a different error earlier in the process. If you happen to have such a capacitor handy, it wouldn't hurt to put it on there.

Usually the "Device signature = 0x000000" error is caused by incorrect wiring. I would suggest that you double check all of your connections. You might also do a continuity test to make sure you don't have any faulty jumper wires (sometimes they have bad connections internally).