USART does not work

[hexagon5un]

USART does not work

[hessa59]

I seems like you have your CPU set at 0.1 MHZ ie #define F_CPU 100000 UL. Is this what you want?

Also I find this error #error "setboud.h requires F_CPU to be defined" to be strange. Shouldn't it be setbaud.h

[hexagon5un]

Hi!

Hessa59 is right -- you need to up your F_CPU define by a factor of ten. That's an easy typo to fix.

The other possible gotcha with Studio is that you might also need to set a BAUD define as well.

It has a way to set global compile-time defines like this. I can't remember off the top of my head what it is.

[DarkRabbit19]

I tried to do that but it dit not work.
the libery does not work wit Atmel studio in general.
in the and i made my own libery. (dropbox link: https://www.dropbox.com/sh/8ncnrjdd973qy6i/AAAOIanbFtVdW1teYvIutOmOa?dl=0)
the only thing I am wondering is what you use instead of Atmelstudio.

[xavicci]

@DarkRabbit19 hola si funciona en atmelstudio7, agrega #define F_CPU 1000000 dentro de USART.c y escribe bien la palabra setbaud.h .
http://es.tinypic.com/view.php?pic=ipzlmx&s=9#.VvvvwVXhCM8 mira la siguiente imagen, espero que te ayude!

[hexagon5un]

@xavicci @DarkRabbit19

Another issue goes over problems with Studio: #10

The BAUD, F_CPU problem is solvable like so:
According to this website, Studio calls them "symbols" and they're found buried pretty deep in some menus: Project - Properties - Toolchain - All Configurations - Symbols.

But the truth is, I didn't intend to get into Studio -- they change it so often that anything I write about using the GUI will be wrong in a year. The stock compile is with any avr-gcc toolchain. See the book for more details? Or LadyAda has a good tutorial.

[DarkRabbit19]

In the end I made a other libery that works.
thank you voor your time and the gread book

[hexagon5un]

Glad you like the book, and I'm sorry about the Studio woes. I wish I could keep up with them too, but they're a moving target.