Xmega undeclared variable
Opened this issue · 4 comments
ab11042015 commented
Hello Kevin,
Let me first thank you for the code, I tried run the however I have this message:
Error 2 'F_USB' undeclared (first use in this function)
Can you please show me the way
Thank you
wbasser commented
That is a macro that needs to be defined in the project options section.
Not sure what tool you are using, but usually it is in tool chain/symbols.
There should also be one indicating F_CPU.
It would normally set to the frequency of the main clock
F_CPU=16000000
i hope this helps.
…On Dec 9, 2017 8:07 AM, "ab11042015" ***@***.***> wrote:
Hello Kevin,
Let me first thank you for the code, I tried run the however I have this
message:
Error 2 'F_USB' undeclared (first use in this function)
Can you please show me the way
Thank you
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ab11042015 commented
Thank you wbasser
I am using AtmelStudio 6 and I am quite newbee, couldn't really figure it out
I will try to find a way to make it
Do you have any good way to learn decently Xmega programming
Anyway thank you for your kind support
wbasser commented
The really good way is look at example projects that are provided by the tool itself, you can create sample programs or go on-line for examples.
So in Atmel studio, goto Project/Properties
Select Toolchain in the left window
Select AVR/GNU C Compiler
Select Symbols
The symbols should be something like this
F_CPU=16000000
F_USB=16000000
ARCH=XMEGA
USE_LUFA_CONGIG_HEADER
BOARD=[ add your board type here or NONE]
This should at least remove the compile error
Bill
Sent from Mail for Windows 10
From: ab11042015
Sent: Saturday, December 9, 2017 8:50 AM
To: kevinmehall/usb
Cc: wbasser; Comment
Subject: Re: [kevinmehall/usb] Xmega undeclared variable (#11)
Thank you wbasser
I am using AtmelStudio 6 and I am quite newbee, couldn't really figure it out
I will try to find a way to make it
Do you have any good way to learn decently Xmega programming
Anyway thank you for your kind support
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ab11042015 commented
Hey Bill,
Thank you, the program compiled without any error, however the usb has not been recognized by the PC.
I went through the whole night but couldn't figure it out, is there any port selection that should be performed?
Again thank you a lot for your kind support