Habe folgendes gefunden und hänge das hier mal als Antwort rein:
****
So as me you ended up here because you want to use the UART of an ATmega
1284p with Peter Fleury lib and you get compile errors or crashe when
transmitting ?
The fix is quite simple, strangely the headers from WinAVR are different
from the 644 family and the 1284.
The lib is not working as is because of missing specific constants and
macros.
In uart.c, just above
#else
#error "no UART definition for MCU available"
Add the 1284p specific uart definitions :
#elif defined(_AVR_ATmega1284P_)
/* ATmega with two USART */
#define ATMEGA_USART0
#define ATMEGA_USART1
#define UART0_RECEIVE_INTERRUPT USART0_RX_vect
#define UART1_RECEIVE_INTERRUPT USART1_RX_vect
#define UART0_TRANSMIT_INTERRUPT USART0_UDRE_vect
#define UART1_TRANSMIT_INTERRUPT USART1_UDRE_vect
#define UART0_STATUS UCSR0A
#define UART0_CONTROL UCSR0B
#define UART0_DATA UDR0
#define UART0_UDRIE UDRIE0
#define UART1_STATUS UCSR1A
#define UART1_CONTROL UCSR1B
#define UART1_DATA UDR1
#define UART1_UDRIE UDRIE1
Note that the interrupt names have changed from the 164p, 324p and 644p
just above in the code, so just adding a "|defined(_AVR_ATmega644P_)"
won't work.
****
