3 * uputc - write a character to USART
5 * written by Vangelis Rokas, 2004 <vrokas AT otenet.gr>
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Library General Public License
13 * as published by the Free Software Foundation; either version 2
14 * of the License, or (at your option) any later version.
16 * This library is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
30 #include <pic18fregs.h>
34 extern union USART USART_Status;
36 void usart_putc(unsigned char dat) __wparam __naked
41 if(USART_Status.TX_NINE)TXSTAbits.TX9D = 1;
44 TXREG = dat; // Write the data byte to the USART
53 btfsc _USART_Status, 1, b