Hi, I use the 8MHz internal oscillator of my atmega328p-pu, but after compiling using arduino-cli, such as: arduino-cli compile --build-property "build.f_cpu=8000000UL" --fqbn arduino:avr:uno mySketch.ino --output-dir . it can't change the frequency from 16MHz to 8MHz. I trid many times, but fail…

Hi @wanggaoteng . My recommendation is to use the excellent "MiniCore" boards platform: [image] GitHub - MCUdude/MiniCore: Arduino hardware package for ATmega8, ATmega48,... Arduino hardware package for ATmega8, ATmega48, ATmega88, ATmega168, ATmega328 and ATmega328PB - GitHub - MCUdude/…

How to change the f_cpu value in arduino-cli ?

Development Tools IDE 2.x

MaximoEsfuerzo May 14, 2023, 4:04pm 4

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How to change the f_cpu value in arduino-cli ?

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