47 lines
860 B
C++
47 lines
860 B
C++
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/*
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* Rs232.h
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*
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* Created: 04.11.2013 21:31:09
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* Author: netz
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*/
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#ifndef RS232_H_
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#define RS232_H_
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#include <avr/io.h>
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#include <avr/interrupt.h>
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template <uint32_t baudrate>
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class Uart {
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public:
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Uart() {
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sei();
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init();
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send("Uart done!\r\n");
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}
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void send(const char *text) {
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while (*text)
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{
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uart_putchar(*text);
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text++;
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}
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}
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void send(uint8_t wert) {
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uart_putchar(wert);
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}
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private:
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void init() {
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UBRRL = (F_CPU / (baudrate * 16L) - 1); //Teiler wird gesetzt
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UCSRB = /*(1<<RXEN1) | (1<<RXCIE1) | */ (1<<TXEN); //Enable TXEN im Register UCR TX-Data Enable
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UCSRC = (1<<URSEL) | (3<<UCSZ0); //8N1
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}
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uint8_t uart_putchar(uint8_t c) {
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loop_until_bit_is_set(UCSRA, UDRE); //Ausgabe des Zeichens
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UDR = c;
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return 0;
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}
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};
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#endif /* RS232_H_ */
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