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I am using schematic of Arduino Pro mini 3.3v/8 MHz version. Please see below circuit diagram I built. enter image description here

Power supply to circuit is 3.3V.

I have a USB ASP programmer which I used in previous version of same circuit running at 5V/16MHz. It was working fine. It is connected to board like this. enter image description here

I want to burn bootloader in this controller so that I can use with arduino IDE. I have done following settings. enter image description here

When I connect USBASP to PC (Windows 10), in device manager, I see the USBASP. Driver installed through Zadig.

enter image description here

When I click Tools --> Burn Bootloader in arduino IDE , I get this error

avrdude: error: program enable: target doesn't answer. 1

avrdude: initialization failed, rc=-1

     Double check connections and try again, or use -F to override
     this check.

Error while burning bootloader.

enter image description here

What I have tried: 1 - Changed firmware of USBASP to official fishl.de website.

2 - Put JP3 on USBASP.

3 - Changed driver of USBASP from libusb-k to libusb-win32 from Zadig. Error changes to

Arduino: 1.8.15 (Windows 10), Board: "Arduino Pro or Pro Mini, ATmega328P (3.3V, 8 MHz)"

avrdude: warning: cannot set sck period. please check for usbasp firmware update.

avrdude: error: program enable: target doesn't answer. 1

avrdude: initialization failed, rc=-1

     Double check connections and try again, or use -F to override

     this check.

4 - Replaced microcontroller from some other board to this board.

5 - Checked voltage on 8 MHz crsytal pins of controller. 3.12V and 3.28V. Cant see wave on oscilloscope.

Nothing works. Same error. I was hopeful that maybe atemga328 is faulty but even after changing it, it doesnt work and I cant burn bootloader and get same error.

Can this be due to crystal capacitor values of 10 pF instead of 20pF? (I chose 10nF after reading datasheet carefully).

Any ideas why this problem?

1 Answer 1

1

The problem was related to crystal. When I changed to another crystal (different part number), it worked.

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