1 | /*
|
---|
2 | Copyright (c) 2011 Arduino. All right reserved.
|
---|
3 |
|
---|
4 | This library is free software; you can redistribute it and/or
|
---|
5 | modify it under the terms of the GNU Lesser General Public
|
---|
6 | License as published by the Free Software Foundation; either
|
---|
7 | version 2.1 of the License, or (at your option) any later version.
|
---|
8 |
|
---|
9 | This library is distributed in the hope that it will be useful,
|
---|
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of
|
---|
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
---|
12 | See the GNU Lesser General Public License for more details.
|
---|
13 |
|
---|
14 | You should have received a copy of the GNU Lesser General Public
|
---|
15 | License along with this library; if not, write to the Free Software
|
---|
16 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
---|
17 | */
|
---|
18 |
|
---|
19 | #ifndef _WIRING_PULSE_
|
---|
20 | #define _WIRING_PULSE_
|
---|
21 |
|
---|
22 | #ifdef __cplusplus
|
---|
23 | extern "C" {
|
---|
24 | #endif
|
---|
25 |
|
---|
26 | /*
|
---|
27 | * \brief Measures the length (in microseconds) of a pulse on the pin; state is HIGH
|
---|
28 | * or LOW, the type of pulse to measure. Works on pulses from 2-3 microseconds
|
---|
29 | * to 3 minutes in length, but must be called at least a few dozen microseconds
|
---|
30 | * before the start of the pulse.
|
---|
31 | */
|
---|
32 | extern uint32_t pulseIn( uint32_t ulPin, uint32_t ulState, uint32_t ulTimeout = 1000000L ) ;
|
---|
33 |
|
---|
34 |
|
---|
35 | #ifdef __cplusplus
|
---|
36 | }
|
---|
37 | #endif
|
---|
38 |
|
---|
39 | #endif /* _WIRING_PULSE_ */
|
---|