How to assemble arduino?

Question

Arduino

Good day.
I bought an Atmel Atmega8a-pu 1105 mikruha. How to use it to assemble a simple arduino, with virtually no strapping, if only it worked (there is 7805 (roll), quartz at 16 MHz, a lot of looseness). How to flash a bootloader, how to upload programs to it? (CP2102 Breakout available)
Many thanks in advance!

Answer 1

A bootloader is needed to upload sketches not via miso mosi sck using a programmer, but via usb. But for this, you need to add usb-uart to the circuit, as in the diagram of most arduino boards (usually there is another 8th mega for this). If you have a bootloader, you will write programs not on clean ones, but on Arduino ones.
I won’t say anything about the wiring and connection diagram of the programmer, it’s easy to google.

Answer 2

Here is the description in English only the programmer is another
arduino.cc/en/Main/Standalone