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[/] [neorv32/] [trunk/] [sw/] [lib/] [include/] [neorv32_twi.h] - Rev 25
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// ################################################################################################# // # << NEORV32: neorv32_twi.h - Two-Wire Interface Controller (TWI) HW Driver >> # // # ********************************************************************************************* # // # BSD 3-Clause License # // # # // # Copyright (c) 2020, 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_USE = true). **************************************************************************/ #ifndef neorv32_twi_h #define neorv32_twi_h // prototypes int neorv32_twi_available(void); void neorv32_twi_setup(uint8_t prsc, uint8_t irq_en); void neorv32_twi_disable(void); void neorv32_twi_mack_enable(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
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