| /* |
| Copyright (c) 2011 Arduino. All right reserved. |
| |
| 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 2.1 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, write to the Free Software |
| Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #ifndef _WIRING_PULSE_ |
| #define _WIRING_PULSE_ |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /* |
| * \brief Measures the length (in microseconds) of a pulse on the pin; state is HIGH |
| * or LOW, the type of pulse to measure. Works on pulses from 2-3 microseconds |
| * to 3 minutes in length, but must be called at least a few dozen microseconds |
| * before the start of the pulse. |
| */ |
| extern uint32_t pulseIn( uint32_t ulPin, uint32_t ulState, uint32_t ulTimeout = 1000000L ) ; |
| |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* _WIRING_PULSE_ */ |
