Comments (9)
goalomy
commented on June 8, 2024
1
hey @naveengautam002 first of all remove F_CPU 12000000UL from your main code and #define F_CPU 1000000 UL in USART.c.
here is pic for your reference
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baldowl
commented on June 8, 2024
See note on page 18 about Atmel Studio and the need to define F_CPU and BAUD at the project level.
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naveengautam002
commented on June 8, 2024
Page 18 of which?
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adicarlo
commented on June 8, 2024
p 18 of the book, Make: AVR Programming
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skyu74
commented on June 8, 2024
The following error occurs.
Is there a way around this?
#error "setbaud.h requires F_CPU to be defined"
#errot "F_CPU must e a constant value"
#warning "UBRR value overflow" [-Wcpp]
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skyu74
commented on June 8, 2024
Make: AVR Programming
Can you explain in detail?
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skyu74
commented on June 8, 2024
Page 18 of which?
Can you explain in detail?
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skyu74
commented on June 8, 2024
Atmel Studio에 대한 18 페이지의 설명
F_CPU과BAUD프로젝트 레벨에서 정의해야 할 필요성에 대해 알아보십시오 .
Can you explain in detail?
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hexagon5un
commented on June 8, 2024
The code sets FCPU = 12 MHz. (What?) But then you're using Studio, which maybe ignores this value anyway.
I have not kept up with Studio in the last few (5?) years, so I'm unable to help there, but the error really looks like you're not defining FCPU on the right page in the project's settings.
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