can't upload program after change a new atmel chip for arduino uno

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hi, everyone!

here problem came me: changed new mcu chip arduino uno, new chip atmega328p-pu, bought rs, here link:https://sg.rs-online.com/web/p/microcontrollers/9222142/,after changing chip, can't uploading programs, , led connected pin 13 didn't blink, topic in forum says there no bootloader, if true, should , how make new chip have bootloader; if not, problem, how fix it, thanks!

your chip not have base program (the boot loader) arduino ide expects. need install that.

google "flashing arduino bootloader"

you see many options doing such one or the reference one


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