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Remove usart files

This commit is contained in:
CVR 2021-09-13 11:04:53 +12:00
parent e23c008cc2
commit 479d07c63f
2 changed files with 0 additions and 79 deletions
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65
test/usart.cpp
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@ -1,65 +0,0 @@
#include <avr/io.h>
#include <avr/interrupt.h>
#include "usart.h"
namespace usart
{
namespace {
static FILE mystdout;
}
void init( unsigned long baud) {
fdev_setup_stream(&mystdout, put_printf, NULL, _FDEV_SETUP_WRITE);
stdout = &mystdout;
const unsigned int ubrr = F_CPU/8/baud-1;
/*Set baud rate */
#if defined __AVR_ATmega328P__
UBRR0H = (unsigned char)(ubrr>>8);
UBRR0L = (unsigned char)ubrr;
UCSR0A |= (1<<U2X0);
//Enable receiver and transmitter
UCSR0B = (1<<RXEN0)|(1<<TXEN0);
//UCSRB |= (1<< RXCIE)|(1<<TXCIE);
/* Set frame format: 8data, 2stop bit */
UCSR0C = (1<<USBS0)|(3<<UCSZ00);
#elif defined __AVR_ATmega32__ || defined __AVR_ATmega16__
UBRRH = (unsigned char)(ubrr>>8);
UBRRL = (unsigned char)ubrr;
UCSRA |= (1<<U2X);
//Enable receiver and transmitter
UCSRB = (1<<RXEN)|(1<<TXEN);
//UCSRB |= (1<< RXCIE)|(1<<TXCIE);
/* Set frame format: 8data, 2stop bit */
UCSRC = (1 << URSEL)|(3<<UCSZ0);
#endif
}
void put(char data) {
#if defined __AVR_ATmega328P__
while ( !( UCSR0A & (1<<UDRE0)) ); UDR0 = data;
#elif defined __AVR_ATmega32__ || defined __AVR_ATmega16__
while ( !( UCSRA & (1<<UDRE)) ); UDR = data;
#endif
}
char get( void ) {
#if defined __AVR_ATmega328P__
while ( !(UCSR0A & (1<<RXC0)) ); return UDR0;
#elif defined __AVR_ATmega32__ || defined __AVR_ATmega16__
while ( !(UCSRA & (1<<RXC)) ); return UDR;
#endif
}
int put_printf(char var, FILE *stream) {
put(var);
return 0;
}
} // namespace usart

14
test/usart.h
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#pragma once
#include <stdio.h>
namespace usart
{
void init(unsigned long baud);
void put(char data );
char get();
int put_printf(char var, FILE *stream);
} // namespace usart