kopia lustrzana https://github.com/micropython/micropython
56 wiersze
2.1 KiB
C
56 wiersze
2.1 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2013, 2014 Damien P. George
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef MICROPY_INCLUDED_STMHAL_I2C_H
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#define MICROPY_INCLUDED_STMHAL_I2C_H
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#include "dma.h"
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// use this for OwnAddress1 to configure I2C in master mode
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#define PYB_I2C_MASTER_ADDRESS (0xfe)
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typedef struct _pyb_i2c_obj_t {
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mp_obj_base_t base;
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I2C_HandleTypeDef *i2c;
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const dma_descr_t *tx_dma_descr;
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const dma_descr_t *rx_dma_descr;
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bool *use_dma;
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} pyb_i2c_obj_t;
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extern I2C_HandleTypeDef I2CHandle1;
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extern I2C_HandleTypeDef I2CHandle2;
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extern I2C_HandleTypeDef I2CHandle3;
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extern const mp_obj_type_t pyb_i2c_type;
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extern const pyb_i2c_obj_t pyb_i2c_obj[4];
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void i2c_init0(void);
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void i2c_init(I2C_HandleTypeDef *i2c);
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void i2c_init_freq(const pyb_i2c_obj_t *self, mp_int_t freq);
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uint32_t i2c_get_baudrate(I2C_InitTypeDef *init);
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void i2c_ev_irq_handler(mp_uint_t i2c_id);
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void i2c_er_irq_handler(mp_uint_t i2c_id);
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#endif // MICROPY_INCLUDED_STMHAL_I2C_H
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