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- /*
- twi.h - TWI/I2C library for Wiring & Arduino
- Copyright (c) 2006 Nicholas Zambetti. 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 twi_h
- #define twi_h
-
- #include <inttypes.h>
-
- //#define ATMEGA8
-
- #ifndef TWI_FREQ
- #define TWI_FREQ 100000L
- #endif
-
- #ifndef TWI_BUFFER_LENGTH
- #define TWI_BUFFER_LENGTH 32
- #endif
-
- #define TWI_READY 0
- #define TWI_MRX 1
- #define TWI_MTX 2
- #define TWI_SRX 3
- #define TWI_STX 4
-
- void twi_init(void);
- void twi_setAddress(uint8_t);
- uint8_t twi_readFrom(uint8_t, uint8_t*, uint8_t, uint8_t);
- uint8_t twi_writeTo(uint8_t, uint8_t*, uint8_t, uint8_t, uint8_t);
- uint8_t twi_transmit(const uint8_t*, uint8_t);
- void twi_attachSlaveRxEvent( void (*)(uint8_t*, int) );
- void twi_attachSlaveTxEvent( void (*)(void) );
- void twi_reply(uint8_t);
- void twi_stop(void);
- void twi_releaseBus(void);
-
- #endif
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