3 * adcbusy - check whether the AD module is busy
5 * written by Vangelis Rokas, 2004 <vrokas AT otenet.gr>
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
22 #include <pic18fregs.h>
26 char adc_busy(void) __naked
28 #if defined(__SDCC_ADC_STYLE65J50)
29 WDTCONbits.ADSHR = 0; /* access ADCON0/1 */
32 return (ADCON0bits.GO);
36 #if defined(__SDCC_ADC_STYLE242)
38 #elif defined(__SDCC_ADC_STYLE1220) \
39 || defined(__SDCC_ADC_STYLE2220) \
40 || defined(__SDCC_ADC_STYLE65J50)
42 #else /* unsupported ADC style */
43 #error Unsupported ADC style.