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42 lines
1.3 KiB
C
42 lines
1.3 KiB
C
/*
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* This file is part of the I2Cscan project.
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* Copyright 2021 Edward V. Emelianov <edward.emelianoff@gmail.com>.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#ifndef I2C_H__
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#include <stm32f1.h>
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typedef enum{
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I2C_OK = 0,
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I2C_LINEBUSY,
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I2C_TMOUT,
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I2C_NOADDR,
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I2C_NACK,
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I2C_HWPROBLEM,
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} i2c_status;
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void i2c_setup();
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void i2c_set_addr7(uint8_t addr);
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i2c_status i2c_7bit_send_onebyte(uint8_t data, uint8_t stop);
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i2c_status i2c_7bit_send(const uint8_t *data, int datalen);
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i2c_status i2c_7bit_receive_onebyte(uint8_t *data, uint8_t stop);
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i2c_status i2c_7bit_receive_twobytes(uint8_t *data);
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i2c_status i2c_7bit_receive(uint8_t *data, uint16_t nbytes);
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#define I2C_H__
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#endif // I2C_H__
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