| /* |
| 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_ANALOG_ |
| #define _WIRING_ANALOG_ |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /* |
| * \brief SAM3 products have only one reference for ADC |
| */ |
| typedef enum _eAnalogReference |
| { |
| AR_DEFAULT, |
| } eAnalogReference ; |
| |
| /* |
| * \brief Configures the reference voltage used for analog input (i.e. the value used as the top of the input range). |
| * This function is kept only for compatibility with existing AVR based API. |
| * |
| * \param ulMmode Should be set to AR_DEFAULT. |
| */ |
| extern void analogReference( eAnalogReference ulMode ) ; |
| |
| /* |
| * \brief Writes an analog value (PWM wave) to a pin. |
| * |
| * \param ulPin |
| * \param ulValue |
| */ |
| extern void analogWrite( uint32_t ulPin, uint32_t ulValue ) ; |
| |
| /* |
| * \brief Reads the value from the specified analog pin. |
| * |
| * \param ulPin |
| * |
| * \return Read value from selected pin, if no error. |
| */ |
| extern uint32_t analogRead( uint32_t ulPin ) ; |
| |
| extern void analogOutputInit( void ) ; |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* _WIRING_ANALOG_ */ |