This article introduces how to change the crystal frequency of the delay function (macro) in the Atmel Studio environment.
In Atmel Studio, you can use the _delay_us(x) macro and _delay_ms(x) macro for precise delay, but you must set the current crystal frequency before using these two macros. This blog introduces how to set it.
1. Right-click on the project and select Properties
2. In the property bar, select the tool chain, then select "Symbols", and then change the F_CPU macro to the corresponding crystal frequency.
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Recommended ReadingLatest update time:2024-11-16 16:55
Atmega168 delay function crystal oscillator frequency setting method
This article introduces how to change the crystal frequency of the delay function (macro) in the Atmel Studio environment. In Atmel Studio, you can use the _delay_us(x) macro and _delay_ms(x) macro for precise delay, but you must set the current crystal frequency before using these two macros. This blog intro
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