mirror of
https://github.com/halleysfifthinc/Toyota-AVC-LAN
synced 2025-06-07 16:06:12 +00:00
144 lines
4.2 KiB
C
144 lines
4.2 KiB
C
/*
|
|
Copyright (C) 2006 Marcin Slonicki <marcin@softservice.com.pl>.
|
|
|
|
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 2
|
|
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, write to the Free Software Foundation,
|
|
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
|
|
-----------------------------------------------------------------------
|
|
this file is a part of the TOYOTA Corolla MP3 Player Project
|
|
-----------------------------------------------------------------------
|
|
http://www.softservice.com.pl/corolla/avc
|
|
|
|
May 28 / 2009 - version 2
|
|
|
|
*/
|
|
|
|
#include <avr/io.h>
|
|
#include <avr/interrupt.h>
|
|
#include <avr/pgmspace.h>
|
|
#include "com232.h"
|
|
|
|
byte RS232_RxCharBuffer[25], RS232_RxCharBegin, RS232_RxCharEnd;
|
|
byte readkey;
|
|
|
|
//------------------------------------------------------------------------------
|
|
void RS232_Init(void)
|
|
{
|
|
// // init LED
|
|
// sbi(DDRB, 5);
|
|
// cbi(PORTB, 5);
|
|
|
|
RS232_RxCharBegin = RS232_RxCharEnd = 0;
|
|
|
|
USART0.CTRLA = USART_RXCIE_bm; // Enable receive interrupts
|
|
USART0.CTRLB = USART_RXEN_bm | USART_TXEN_bm | USART_RXMODE_NORMAL_gc; // Enable Rx/Tx and set receive mode normal
|
|
USART0.CTRLC = USART_CMODE_ASYNCHRONOUS_gc | USART_PMODE_DISABLED_gc | USART_CHSIZE_8BIT_gc | USART_SBMODE_1BIT_gc; // Async UART with 8N1 config
|
|
USART0.BAUD = 256; // 250k baud rate (64*F_CPU/(16*250k)) for F_CPU = 16MHz
|
|
}
|
|
//------------------------------------------------------------------------------
|
|
ISR(USART0_RXC_vect)
|
|
{
|
|
RS232_RxCharBuffer[RS232_RxCharEnd] = USART0_RXDATAL; // Store received character to the End of Buffer
|
|
RS232_RxCharEnd++;
|
|
}
|
|
//------------------------------------------------------------------------------
|
|
void RS232_SendByte(byte Data)
|
|
{
|
|
loop_until_bit_is_set(USART0_STATUS, USART_DREIF_bp); // wait for UART to become available
|
|
USART0_TXDATAL = Data; // send character
|
|
}
|
|
//------------------------------------------------------------------------------
|
|
void RS232_Print_P(const char * str_addr)
|
|
{
|
|
register byte c;
|
|
while ( (c = pgm_read_byte(str_addr++) ) )
|
|
{
|
|
if (c == '\n')
|
|
RS232_SendByte('\r');
|
|
RS232_SendByte(c);
|
|
}
|
|
}
|
|
//------------------------------------------------------------------------------
|
|
void RS232_Print(const char *pBuf)
|
|
{
|
|
register byte c;
|
|
while ((c = *pBuf++))
|
|
{
|
|
if (c == '\n')
|
|
RS232_SendByte('\r');
|
|
RS232_SendByte(c);
|
|
}
|
|
}
|
|
//------------------------------------------------------------------------------
|
|
void RS232_PrintHex4(byte Data)
|
|
{
|
|
byte Character = Data & 0x0f;
|
|
Character += '0';
|
|
if (Character > '9')
|
|
Character += 'A' - '0' - 10;
|
|
RS232_SendByte(Character);
|
|
}
|
|
//------------------------------------------------------------------------------
|
|
void RS232_PrintHex8(byte Data)
|
|
{
|
|
RS232_PrintHex4(Data >> 4);
|
|
RS232_PrintHex4(Data);
|
|
}
|
|
//------------------------------------------------------------------------------
|
|
void RS232_PrintDec(byte Data)
|
|
{
|
|
if (Data>99) {
|
|
RS232_SendByte('*');
|
|
return;
|
|
}
|
|
if (Data<10) {
|
|
RS232_SendByte('0'+Data);
|
|
return;
|
|
}
|
|
byte c;
|
|
unsigned short v,v1;
|
|
v = Data;
|
|
v1 = v/10;
|
|
c = '0' + (v-v1*10);
|
|
RS232_SendByte('0'+v1);
|
|
RS232_SendByte(c);
|
|
}
|
|
//------------------------------------------------------------------------------
|
|
void RS232_PrintDec2(byte Data)
|
|
{
|
|
if (Data<10) RS232_SendByte('0');
|
|
RS232_PrintDec(Data);
|
|
}
|
|
|
|
char* itoa(int i, char b[]){
|
|
char const digit[] = "0123456789";
|
|
char* p = b;
|
|
if(i<0){
|
|
*p++ = '-';
|
|
i *= -1;
|
|
}
|
|
int shifter = i;
|
|
do{ //Move to where representation ends
|
|
++p;
|
|
shifter = shifter/10;
|
|
}while(shifter);
|
|
*p = '\0';
|
|
do{ //Move back, inserting digits as u go
|
|
*--p = digit[i%10];
|
|
i = i/10;
|
|
}while(i);
|
|
return b;
|
|
}
|
|
//------------------------------------------------------------------------------
|