33 lines
1.1 KiB
C
33 lines
1.1 KiB
C
/*
|
|
* Copyright (C) 2010 Uwe Hermann <uwe@hermann-uwe.de>
|
|
*
|
|
* This library is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Lesser General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This library 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 Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* along with this library. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <unicore-mx/lpc17xx/exti.h>
|
|
|
|
void exti_set_trigger(uint32_t extis, enum exti_trigger_type trig)
|
|
{
|
|
EXTPOLAR &= ~(1<<extis);
|
|
EXTPOLAR |= (trig == EXTI_TRIGGER_RISING || trig == EXTI_TRIGGER_HIGH) ? (1 << extis) : 0;
|
|
|
|
EXTMODE &= ~(1<<extis);
|
|
EXTMODE |= (trig == EXTI_TRIGGER_RISING || trig == EXTI_TRIGGER_FALLING) ? (1 << extis) : 0;
|
|
}
|
|
|
|
void exti_clear_flag(uint32_t extis)
|
|
{
|
|
EXTINT = (1 << extis);
|
|
}
|
|
|