XMEGA PortF and Uart/Pin Problem

[corado]

Hallo,
I set
PORTF_DIRset:= %11110011;

and then

PORTF_OUT:=%10000000; // Status LED1
delay_ms(200);
PORTF_OUT:=%00000000;
delay_ms(200);

This works..but I USE UART
UARTF0_Init(4800);

then I can't toggel the LEDs anymore?!?

[marina.petrovic]

Hi,

Please, can you tell me which microcontroller you use?

Did you test UART communication separately to make sure whether it's work properly?

Best regards,
Marina

[corado]

Hallo, Xemag128U3.
Uart works fine, pin in and aout too..but i I use UartF0 then Portf seems disables for toggeling

[marina.petrovic]

Hi,

I can't see any problem in the part of the code that you posted.
Did you try to toggle some other port LEDs, just to be sure that problem is in PORTF LEDs?

If I am not wrong, ATxmega128A3 USARTF0 is connected with PF1 (XCK0), PF2 (RXD0) and PF3 (TXD0) pins.

Best regards,
Marina

[corado]

yes, all other ports toggeling, if UART is on or not no problem only port f has the problem

[corado]

I found it
If I initialize Uart first and then the IN/Outputs then it works

[marina.petrovic]

Hi,

I am glad that you manage to solve your problem.

Best regards,
Marina