I am now designing a new PCB Board for my project and having trouble in burning bootloader atmega328P-AU using USBtinyISP. And MCU is running with the supply voltage of 3.3V with Voltage regulator.
After setting Board/Processor/Programmer in the arduino [Tools] as attached below,
I tried to burn bootloader.
But the result always says "error: usbtiny_transmit: initialization failed, rc=-1"
(Many other folks also attach the full output of avrdude, however, I do not know how to get the full output. Please let me know this one as well.)
Here is my circuit design. Please see the below image.
First, I have one quick question.
Many people suggested that I connect reset with 10k ohm resistor. (as attached below)
If this is not the issue, then, how can I troubleshoot this problem?
Is it a matter of the settings in Arduino program (Board/Processor/Programmer)?
Please help me guys!