I would like to program the Atmega328p MCU before soldering it onto my PCB. Is there a IC programmer to do this? Better still, I would like to program several Atmega328p MCUs at the same time. Does such a programmer exist?
Thank you very much.
There are a few ways of doing it, including products that include ZIF sockets (eg. from Adafruit) however this should serve:
That puts a bootloader on the chip, then you can program via the serial ports.
I have a sketch that will upload a .hex file from an SD card, it takes a couple of seconds:
There are commercial products that do that, probably only useful if you are doing hundreds of chips.