forgotten uart files
This commit is contained in:
parent
2c909fca2a
commit
d72d6fbe7a
|
|
@ -0,0 +1,33 @@
|
|||
/* uart.h */
|
||||
/*
|
||||
This file is part of the AVR-Crypto-Lib.
|
||||
Copyright (C) 2014 Daniel Otte (daniel.otte@rub.de)
|
||||
|
||||
This program is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#ifndef UART_H_
|
||||
#define UART_H_
|
||||
|
||||
#include "config.h"
|
||||
|
||||
#if UART_NI == 0
|
||||
# include "uart_i.h"
|
||||
#elif UART_NI == 1
|
||||
# include "uart_ni.h"
|
||||
#else
|
||||
# error "You have to set 'UART_NI' to '0' for interrupt driven uart o to '1' for a polling driven uart!"
|
||||
#endif
|
||||
|
||||
#endif /* UART_H_ */
|
||||
|
|
@ -0,0 +1,199 @@
|
|||
/* uart_i.c */
|
||||
/*
|
||||
This file is part of the AVR-uart_i.
|
||||
Copyright (C) 2009 Daniel Otte (daniel.otte@rub.de)
|
||||
|
||||
This program is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
/**
|
||||
* \file uart_i.c
|
||||
* \email daniel.otte@rub.de
|
||||
* \author Daniel Otte
|
||||
* \date 2009-07-24
|
||||
* \license GPLv3 or later
|
||||
* \ingroup uart_i
|
||||
* \brief implementation of interrupt based uart
|
||||
*/
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <avr/interrupt.h>
|
||||
#include "config.h"
|
||||
#include "uart.h"
|
||||
|
||||
#define XON_VALUE 0x11
|
||||
#define XOFF_VALUE 0x13
|
||||
|
||||
#if UART0_I
|
||||
|
||||
#ifndef UART0_PARATY
|
||||
# warning "UART0: using default paraty: 'none'"
|
||||
# define UART0_PARATY UART_PARATY_NONE
|
||||
#endif
|
||||
|
||||
#ifndef UART0_STOPBITS
|
||||
# warning "UART0: using default ammount of stop bits: '1'"
|
||||
# define UART0_STOPBITS UART_STOPBITS_1
|
||||
#endif
|
||||
|
||||
#ifndef UART0_DATABITS
|
||||
# warning "UART0: using default ammount of data bits: '8'"
|
||||
# define UART0_DATABITS UART_DATABITS_8
|
||||
#endif
|
||||
|
||||
#if UART0_DATABITS == UART_DATABITS_9
|
||||
# error "UART0: data bits==9 not supported"
|
||||
#endif
|
||||
|
||||
|
||||
#ifdef UDR
|
||||
# define OLD_UART
|
||||
# ifdef UDR0
|
||||
# error "can not decide which registernames to use, UDR and UDR0 are defined"
|
||||
# endif
|
||||
#endif
|
||||
|
||||
#ifdef OLD_UART
|
||||
# define UCSR0A UCSRA
|
||||
# define UCSR0B UCSRB
|
||||
# define UCSR0C UCSRC
|
||||
# define UBRR0H UBRRH
|
||||
# define UBRR0L UBRRL
|
||||
# define UDR0 UDR
|
||||
# define TXEN0 TXEN
|
||||
# define RXEN0 RXEN
|
||||
# define UDRE0 UDRE
|
||||
# define RXC0 RXC
|
||||
# define TXB80 TXB8
|
||||
# define RXB80 RXB8
|
||||
#endif
|
||||
|
||||
uart0_ctx_t uart0_ctx;
|
||||
uint8_t uart0_rxbuffer[UART0_RXBUFFER_SIZE];
|
||||
uint8_t uart0_txbuffer[UART0_TXBUFFER_SIZE];
|
||||
|
||||
void uart0_init(void){
|
||||
circularbytebuffer_init2(UART0_RXBUFFER_SIZE, &(uart0_ctx.rxb), uart0_rxbuffer);
|
||||
circularbytebuffer_init2(UART0_TXBUFFER_SIZE, &(uart0_ctx.txb), uart0_txbuffer);
|
||||
#if UART0_HOOK
|
||||
uart0_ctx.hook = NULL;
|
||||
uart0_ctx.hook_running = 0;
|
||||
#endif
|
||||
#if UART0_SWFLOWCTRL
|
||||
uart0_ctx.txon = 1;
|
||||
uart0_ctx.rxon = 1;
|
||||
#endif
|
||||
#define BAUD UART0_BAUD_RATE
|
||||
#include <util/setbaud.h>
|
||||
UBRR0H = UBRRH_VALUE;
|
||||
UBRR0L = UBRRL_VALUE;
|
||||
#if USE_2X
|
||||
UCSR0A |= _BV(U2X0);
|
||||
#else
|
||||
UCSR0A &= ~_BV(U2X0);
|
||||
#endif
|
||||
UCSR0C = (UART0_PARATY<<4)|(UART0_STOPBITS<<3)|((UART0_DATABITS&3)<<1);
|
||||
UCSR0B = _BV(RXCIE0) | _BV(UDRIE0) | _BV(RXEN0) | _BV(TXEN0) ; /* enable TX and RX and interrupts */
|
||||
sei();
|
||||
}
|
||||
|
||||
ISR(USART0_UDRE_vect){
|
||||
uint16_t x;
|
||||
x = circularbytebuffer_get_fifo(&(uart0_ctx.txb));
|
||||
if(x==0xffff){
|
||||
/* the transmit buffer is empty, disable interrupt */
|
||||
UCSR0B &= (uint8_t)~_BV(UDRIE0);
|
||||
return;
|
||||
}
|
||||
#if UART0_SWFLOWCTRL
|
||||
while(!uart0_ctx.txon)
|
||||
;
|
||||
#endif
|
||||
UDR0 = x;
|
||||
}
|
||||
|
||||
void uart0_putc (uint16_t c){
|
||||
#if UART0_SWFLOWCTRL
|
||||
while(!uart0_ctx.txon)
|
||||
;
|
||||
#endif
|
||||
while(circularbytebuffer_cnt(&(uart0_ctx.txb))==UART0_TXBUFFER_SIZE)
|
||||
;
|
||||
cli();
|
||||
circularbytebuffer_append((uint8_t)c, &(uart0_ctx.txb));
|
||||
sei();
|
||||
UCSR0B |= (uint8_t)_BV(UDRIE0);
|
||||
}
|
||||
|
||||
ISR(USART0_RX_vect){
|
||||
uint16_t c;
|
||||
c = UDR0;
|
||||
#if UART0_SWFLOWCTRL
|
||||
if(c==XON_VALUE){
|
||||
uart0_ctx.txon = 1;
|
||||
return;
|
||||
}
|
||||
if(c==XOFF_VALUE){
|
||||
uart0_ctx.txon = 0;
|
||||
return;
|
||||
}
|
||||
#endif
|
||||
#if UART0_HOOK
|
||||
if((!uart0_ctx.hook_running) && uart0_ctx.hook){
|
||||
uart0_ctx.hook_running=1;
|
||||
sei();
|
||||
do{
|
||||
uart0_ctx.hook(c);
|
||||
}while((c=circularbytebuffer_get_fifo(&(uart0_ctx.rxb)))!=0xffff);
|
||||
uart0_ctx.hook_running=0;
|
||||
return;
|
||||
}
|
||||
#endif
|
||||
if(circularbytebuffer_cnt(&(uart0_ctx.rxb))==UART0_RXBUFFER_SIZE)
|
||||
return;
|
||||
circularbytebuffer_append(c, &(uart0_ctx.rxb));
|
||||
#if UART0_SWFLOWCTRL
|
||||
if(circularbytebuffer_cnt(&(uart0_ctx.rxb))>UART0_THRESH_HIGH && uart0_ctx.rxon){
|
||||
uart0_ctx.rxon = 0;
|
||||
circularbytebuffer_push(XOFF_VALUE, &(uart0_ctx.txb));
|
||||
UCSR0B |= (uint8_t)_BV(UDRIE0);
|
||||
}
|
||||
if(circularbytebuffer_cnt(&(uart0_ctx.rxb))<UART0_THRESH_LOW && !uart0_ctx.rxon){
|
||||
uart0_ctx.rxon = 1;
|
||||
circularbytebuffer_push(XON_VALUE, &(uart0_ctx.txb));
|
||||
UCSR0B |= (uint8_t)_BV(UDRIE0);
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
||||
uint16_t uart0_getc(void){
|
||||
uint8_t ret;
|
||||
while(circularbytebuffer_cnt(&(uart0_ctx.rxb))==0)
|
||||
;
|
||||
cli();
|
||||
ret = circularbytebuffer_get_fifo(&(uart0_ctx.rxb));
|
||||
sei();
|
||||
return ret;
|
||||
}
|
||||
|
||||
uint8_t uart0_dataavail(void){
|
||||
return circularbytebuffer_cnt(&(uart0_ctx.rxb));
|
||||
}
|
||||
|
||||
#if UART0_HOOK
|
||||
void uart0_sethook(void(*fpt)(uint8_t)){
|
||||
uart0_ctx.hook = fpt;
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* UART0_I */
|
||||
|
|
@ -0,0 +1,278 @@
|
|||
/* uart_ni.c */
|
||||
/*
|
||||
This file is part of the AVR-uart_ni.
|
||||
Copyright (C) 2009 Daniel Otte (daniel.otte@rub.de)
|
||||
|
||||
This program is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
#include "config.h"
|
||||
#include <avr/io.h>
|
||||
#include "avr-asm-macros.S"
|
||||
#include "uart_defs.h"
|
||||
/******************************************************************************/
|
||||
|
||||
#if UART0_NI
|
||||
|
||||
#ifndef UART0_PARATY
|
||||
# warning "UART0: using default paraty: 'none'"
|
||||
# define UART0_PARATY UART_PARATY_NONE
|
||||
#endif
|
||||
|
||||
#ifndef UART0_STOPBITS
|
||||
# warning "UART0: using default ammount of stop bits: '1'"
|
||||
# define UART0_STOPBITS UART_STOPBITS_1
|
||||
#endif
|
||||
|
||||
#ifndef UART0_DATABITS
|
||||
# warning "UART0: using default ammount of data bits: '8'"
|
||||
# define UART0_DATABITS UART_DATABITS_8
|
||||
#endif
|
||||
|
||||
|
||||
#ifdef UDR
|
||||
# define OLD_UART
|
||||
# ifdef UDR0
|
||||
# error "can not decide which registernames to use, UDR and UDR0 are defined"
|
||||
# endif
|
||||
#endif
|
||||
|
||||
#ifdef OLD_UART
|
||||
# define UCSR0A UCSRA
|
||||
# define UCSR0B UCSRB
|
||||
# define UCSR0C UCSRC
|
||||
# define UBRR0H UBRRH
|
||||
# define UBRR0L UBRRL
|
||||
# define UDR0 UDR
|
||||
# define TXEN0 TXEN
|
||||
# define RXEN0 RXEN
|
||||
# define UDRE0 UDRE
|
||||
# define RXC0 RXC
|
||||
# define TXB80 TXB8
|
||||
# define RXB80 RXB8
|
||||
#endif
|
||||
|
||||
#define BAUD (UART0_BAUD_RATE)
|
||||
#include "setbaud_asm.inc"
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
.global uart0_init
|
||||
uart0_init:
|
||||
ldi r24, UBRRH_VALUE
|
||||
STORE_IO UBRR0H, r24
|
||||
ldi r24, UBRRL_VALUE
|
||||
STORE_IO UBRR0L, r24
|
||||
#if _SFR_IO_REG_P(UCSR0A)
|
||||
#if USE_2X
|
||||
sbi _SFR_IO_ADDR(UCSR0A), 1
|
||||
#else
|
||||
cbi _SFR_IO_ADDR(UCSR0A), 1
|
||||
#endif
|
||||
#else
|
||||
lds r24, _SFR_MEM_ADDR(UCSR0A)
|
||||
#if USE_2X
|
||||
ori r24, 0x02
|
||||
#else
|
||||
andi r24, ~0x02
|
||||
#endif
|
||||
sts _SFR_MEM_ADDR(UCSR0A), r24
|
||||
#endif
|
||||
ldi r24, (UART0_PARATY<<4)|(UART0_STOPBITS<<3)|((UART0_DATABITS&3)<<1)
|
||||
STORE_IO UCSR0C, r24
|
||||
ldi r24, _BV(TXEN0)|_BV(RXEN0)|((UART0_DATABITS>>2)<<2)
|
||||
STORE_IO UCSR0B, r24
|
||||
ret
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
.global uart0_putc
|
||||
uart0_putc:
|
||||
#if _SFR_IO_REG_P(UCSR0A)
|
||||
sbis _SFR_IO_ADDR(UCSR0A), UDRE0
|
||||
rjmp uart0_putc
|
||||
#else
|
||||
lds r25, _SFR_MEM_ADDR(UCSR0A)
|
||||
sbrs r25, UDRE0
|
||||
rjmp uart0_putc
|
||||
#endif
|
||||
#if UART0_DATABITS == UART_DATABITS_9
|
||||
# if _SFR_IO_REG_P(UCSR0B)
|
||||
sbi UCSR0B, TXB80
|
||||
sbrs r25, 0
|
||||
cbi UCSR0B, TXB80
|
||||
# else
|
||||
lds r23, _SFR_MEM_ADDR(UCSR0B)
|
||||
bst r25, 0
|
||||
bld r23, TXB80
|
||||
sts _SFR_MEM_ADDR(UCSR0B), r23
|
||||
# endif
|
||||
#endif
|
||||
STORE_IO UDR0, r24
|
||||
ret
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
.global uart0_getc
|
||||
uart0_getc:
|
||||
#if _SFR_IO_REG_P(UCSR0A)
|
||||
sbis _SFR_IO_ADDR(UCSR0A), RXC0
|
||||
rjmp uart0_putc
|
||||
#else
|
||||
lds r25, _SFR_MEM_ADDR(UCSR0A)
|
||||
sbrs r25, RXC0
|
||||
rjmp uart0_getc
|
||||
#endif
|
||||
|
||||
#if UART0_DATABITS == UART_DATABITS_9
|
||||
LOAD_IO r25, UCSR0B
|
||||
lsr r25
|
||||
andi r25, 1
|
||||
#else
|
||||
clr r25
|
||||
#endif
|
||||
LOAD_IO r24, UDR0
|
||||
ret
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
.global uart0_dataavail
|
||||
uart0_dataavail:
|
||||
LOAD_IO r24, UCSR0A
|
||||
andi r24, _BV(RXC0)
|
||||
clr r25
|
||||
ret
|
||||
|
||||
#endif /* UART0_NI */
|
||||
|
||||
/******************************************************************************/
|
||||
/******************************************************************************/
|
||||
/******************************************************************************/
|
||||
|
||||
#if UART1_NI
|
||||
|
||||
#ifndef UDRE1
|
||||
# error "registernames for second UART not defined"
|
||||
#endif
|
||||
|
||||
#ifndef UART1_PARATY
|
||||
# warning "UART1: using default paraty: 'none'"
|
||||
# define UART1_PARATY UART_PARATY_NONE
|
||||
#endif
|
||||
|
||||
#ifndef UART1_STOPBITS
|
||||
# warning "UART1: using default ammount of stop bits: '1'"
|
||||
# define UART1_STOPBITS UART_STOPBITS_1
|
||||
#endif
|
||||
|
||||
#ifndef UART1_DATABITS
|
||||
# warning "UART1: using default ammount of data bits: '8'"
|
||||
# define UART1_DATABITS UART_DATABITS_8
|
||||
#endif
|
||||
|
||||
#ifdef BAUD
|
||||
# undef BAUD
|
||||
#endif
|
||||
|
||||
#define BAUD (UART1_BAUD_RATE)
|
||||
|
||||
#include "setbaud_asm.inc"
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
.global uart1_init
|
||||
uart1_init:
|
||||
ldi r24, UBRRH_VALUE
|
||||
STORE_IO UBRR1H, r24
|
||||
ldi r24, UBRRL_VALUE
|
||||
STORE_IO UBRR1L, r24
|
||||
#if _SFR_IO_REG_P(UCSR1A)
|
||||
#if USE_2X
|
||||
sbi _SFR_IO_ADDR(UCSR1A), 1
|
||||
#else
|
||||
cbi _SFR_IO_ADDR(UCSR1A), 1
|
||||
#endif
|
||||
#else
|
||||
lds r24, _SFR_MEM_ADDR(UCSR1A)
|
||||
#if USE_2X
|
||||
ori r24, 0x02
|
||||
#else
|
||||
andi r24, ~0x02
|
||||
#endif
|
||||
sts _SFR_MEM_ADDR(UCSR1A), r24
|
||||
#endif
|
||||
ldi r24, (UART1_PARATY<<4)|(UART1_STOPBITS<<3)|((UART1_DATABITS&3)<<1)
|
||||
STORE_IO UCSR1C, r24
|
||||
ldi r24, _BV(TXEN1)|_BV(RXEN1)|((UART1_DATABITS>>2)<<2)
|
||||
STORE_IO UCSR1B, r24
|
||||
ret
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
.global uart1_putc
|
||||
uart1_putc:
|
||||
#if _SFR_IO_REG_P(UCSR1A)
|
||||
sbis _SFR_IO_ADDR(UCSR1A), UDRE1
|
||||
rjmp uart1_putc
|
||||
#else
|
||||
lds r23, _SFR_MEM_ADDR(UCSR1A)
|
||||
sbrs r23, UDRE1
|
||||
rjmp uart1_putc
|
||||
#endif
|
||||
#if UART1_DATABITS == UART_DATABITS_9
|
||||
# if _SFR_IO_REG_P(UCSR1B)
|
||||
sbi UCSR1B, TXB81
|
||||
sbrs r25, 0
|
||||
cbi UCSR1B, TXB81
|
||||
# else
|
||||
lds r23, _SFR_MEM_ADDR(UCSR1B)
|
||||
bst r25, 0
|
||||
bld r23, TXB81
|
||||
sts _SFR_MEM_ADDR(UCSR1B), r23
|
||||
# endif
|
||||
#endif
|
||||
STOREIO UDR1, r24
|
||||
ret
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
.global uart1_getc
|
||||
uart1_getc:
|
||||
#if _SFR_IO_REG_P(UCSR1A)
|
||||
sbis _SFR_IO_ADDR(UCSR1A), RXC1
|
||||
rjmp uart1_putc
|
||||
#else
|
||||
lds r25, _SFR_MEM_ADDR(UCSR1A)
|
||||
sbrs r25, RXC1
|
||||
rjmp uart1_getc
|
||||
#endif
|
||||
#if UART1_DATABITS == UART_DATABITS_9
|
||||
LOAD_IO r25, UCSR1B
|
||||
lsr r25
|
||||
andi r25, 1
|
||||
#else
|
||||
clr r25
|
||||
#endif
|
||||
LOAD_IO r24, UDR1
|
||||
ret
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
.global uart1_dataavail
|
||||
uart1_dataavail:
|
||||
LOAD_IO r24, UCSR1A
|
||||
andi r24, _BV(RXC1)
|
||||
clr r25
|
||||
ret
|
||||
|
||||
#endif /* UART1_NI */
|
||||
|
|
@ -0,0 +1,109 @@
|
|||
/* uart_ni.h */
|
||||
/*
|
||||
This file is part of the AVR-uart_ni.
|
||||
Copyright (C) 2009 Daniel Otte (daniel.otte@rub.de)
|
||||
|
||||
This program is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
/**
|
||||
* \file uart_ni.h
|
||||
* \email daniel.otte@rub.de
|
||||
* \author Daniel Otte
|
||||
* \date 2009-07-24
|
||||
* \license GPLv3 or later
|
||||
* \ingroup uart_ni
|
||||
* \brief declaration for non-interrupt uart
|
||||
*/
|
||||
|
||||
#ifndef UART_NI_H_
|
||||
#define UART_NI_H_
|
||||
|
||||
#include "config.h"
|
||||
#include <stdint.h>
|
||||
|
||||
#if UART0_NI
|
||||
|
||||
/**
|
||||
* \brief initialize uart0.
|
||||
* This function initializes the first uart according to the parameter specified
|
||||
* in config.h .
|
||||
*/
|
||||
void uart0_init(void);
|
||||
|
||||
/**
|
||||
* \brief send data through uart0.
|
||||
* This function sends data through the first uart
|
||||
* (the data size is defined in config.h).
|
||||
* \param c data to send
|
||||
*/
|
||||
void uart0_putc(uint16_t c);
|
||||
|
||||
/**
|
||||
* \brief read data from uart0.
|
||||
* This function reads data from the first uart
|
||||
* (the data size is defined in config.h).
|
||||
* \return data received by uart0
|
||||
*/
|
||||
uint16_t uart0_getc(void);
|
||||
|
||||
/**
|
||||
* \brief checks if data is available.
|
||||
*
|
||||
* This function checks the state of the input buffer of uart0 and
|
||||
* returns if data is available or not.
|
||||
* \return zero if no data is available else a value different from zero is returned
|
||||
*/
|
||||
uint8_t uart0_dataavail(void);
|
||||
|
||||
#define uart0_flush()
|
||||
|
||||
#endif /* UART0_NI */
|
||||
|
||||
#if UART1_NI
|
||||
/**
|
||||
* \brief initialize uart1.
|
||||
* This function initializes the second uart according to the parameter specifyed
|
||||
* in config.h .
|
||||
*/
|
||||
void uart1_init(void);
|
||||
|
||||
/**
|
||||
* \brief send data through uart1.
|
||||
* This function sends data through the second uart
|
||||
* (the data size is defined in config.h).
|
||||
* \param c data to send
|
||||
*/
|
||||
void uart1_putc(uint16_t c);
|
||||
|
||||
/**
|
||||
* \brief read data from uart1.
|
||||
* This function reads data from the second uart
|
||||
* (the data size is defined in config.h).
|
||||
* \return data received by uart1
|
||||
*/
|
||||
uint16_t uart1_getc(void);
|
||||
|
||||
/**
|
||||
* \brief checks if data is available.
|
||||
* This function checks the state of the input buffer of uart1 and
|
||||
* returns if data is available or not.
|
||||
* \return zero if no data is available else a value different from zero is returned
|
||||
*/
|
||||
uint8_t uart1_dataavail(void);
|
||||
|
||||
#define uart1_flush()
|
||||
|
||||
#endif /* UART1_NI */
|
||||
|
||||
#endif /* UART_NI_H_ */
|
||||
Loading…
Reference in New Issue