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2024-02-23 13:01:05 +00:00
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Libs/RiscV/NEORV32/sw/lib/include/neorv32_twi.h Normal file
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// #################################################################################################
// # << NEORV32: neorv32_twi.h - Two-Wire Interface Controller (TWI) HW Driver >> #
// # ********************************************************************************************* #
// # BSD 3-Clause License #
// # #
// # Copyright (c) 2021, Stephan Nolting. All rights reserved. #
// # #
// # Redistribution and use in source and binary forms, with or without modification, are #
// # permitted provided that the following conditions are met: #
// # #
// # 1. Redistributions of source code must retain the above copyright notice, this list of #
// # conditions and the following disclaimer. #
// # #
// # 2. Redistributions in binary form must reproduce the above copyright notice, this list of #
// # conditions and the following disclaimer in the documentation and/or other materials #
// # provided with the distribution. #
// # #
// # 3. Neither the name of the copyright holder nor the names of its contributors may be used to #
// # endorse or promote products derived from this software without specific prior written #
// # permission. #
// # #
// # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS #
// # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF #
// # MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE #
// # COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, #
// # EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE #
// # GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED #
// # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING #
// # NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED #
// # OF THE POSSIBILITY OF SUCH DAMAGE. #
// # ********************************************************************************************* #
// # The NEORV32 Processor - https://github.com/stnolting/neorv32 (c) Stephan Nolting #
// #################################################################################################
/**********************************************************************//**
* @file neorv32_twi.h
* @author Stephan Nolting
* @brief Two-Wire Interface Controller (TWI) HW driver header file.
*
* @note These functions should only be used if the TWI unit was synthesized (IO_TWI_EN = true).
**************************************************************************/
#ifndef neorv32_twi_h
#define neorv32_twi_h
// prototypes
int neorv32_twi_available(void);
void neorv32_twi_setup(uint8_t prsc);
void neorv32_twi_disable(void);
void neorv32_twi_enable(void);
void neorv32_twi_mack_enable(void);
void neorv32_twi_mack_disable(void);
int neorv32_twi_busy(void);
int neorv32_twi_start_trans(uint8_t a);
int neorv32_twi_trans(uint8_t d);
uint8_t neorv32_twi_get_data(void);
void neorv32_twi_generate_stop(void);
void neorv32_twi_generate_start(void);
#endif // neorv32_twi_h