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ejung 6 years ago
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README.md
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lets you use normal `printf()` in your code. lets you use normal `printf()` in your code.
## Adjustments to make ### Adjustments to make
the dafault configuration works on an atmega328p with 38400 baud. Any other setup might require one of the following changes. the dafault configuration works on an atmega328p with 38400 baud. Any other setup might require one of the following changes.
##### Set baudrate in 'uart.h' #### Set baudrate in 'uart.h'
line 6: line 6:
`#define BAUD 38400` `#define BAUD 38400`
##### Select which UART to use #### Select which UART to use
If your controller has more than one UART hardware and you want to use a different than UART0, If your controller has more than one UART hardware and you want to use a different than UART0,
change the register defines in the following way: change the register defines in the following way:
##### Example: UART0 -> UART3
from `#define UART_BAUD_REGH UBRR0H` to `#define UART_BAUD_REGH UBRR3H`</br> from `#define UART_BAUD_REGH UBRR0H` to `#define UART_BAUD_REGH UBRR3H`</br>
and</br> and</br>
from `#define UART_UCSZ0_BM UCSZ00` to `#define UART_UCSZ0_BM UCSZ30` from `#define UART_UCSZ0_BM UCSZ00` to `#define UART_UCSZ0_BM UCSZ30`

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