36 lines
776 B
C
36 lines
776 B
C
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#include "uart.h"
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void uart_init() {
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/* This make stuff not work, idk
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// set baud rate
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UBRR0H = (MYUBRR>>8);
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UBRR0L = MYUBRR;
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*/
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/* Enable receiver and transmitter */
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UCSR0B |= (1<<RXEN0) | (1<<TXEN0);
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/* Set frame format: 8data, 2stop bit */
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UCSR0C |= (1<<UCSZ01)|(3<<UCSZ00);
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//Lokales interrupt enable
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UCSR0B |= (1 << RXCIE0);
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}
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void uart_printc(char c) {
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/* Wait for empty transmit buffer */
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while ( !( UCSR0A & (1<<UDRE0)) )
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{
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// wartet nur
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}
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/* Put data into buffer, sends the data */
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UDR0 = c;
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}
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void uart_prints(char* s) {
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while(*s)
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uart_printc(*s++);
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uart_printc('\n');
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}
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char uart_getc() {
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while (UCSR0A & (1 << RXC0));
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return UDR0;
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}
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