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46 lines
1.3 KiB
C
46 lines
1.3 KiB
C
/*
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* This file is part of the F1_testbrd project.
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* Copyright 2022 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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#include <stm32f1.h>
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#define I2C_ADDREND (0x80)
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typedef enum{
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VERYLOW_SPEED,
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LOW_SPEED,
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HIGH_SPEED,
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CURRENT_SPEED
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} I2C_SPEED;
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extern I2C_SPEED curI2Cspeed;
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extern volatile uint8_t I2C_scan_mode;
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// timeout of I2C bus in ms
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#define I2C_TIMEOUT (100)
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void i2c_setup(I2C_SPEED speed);
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void i2c_set_addr7(uint8_t addr);
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uint8_t read_i2c(uint8_t *data, uint8_t nbytes);
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uint8_t read_i2c_reg(uint8_t reg, uint8_t *data, uint8_t nbytes);
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uint8_t write_i2c(uint8_t *data, uint8_t nbytes);
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void i2c_init_scan_mode();
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int i2c_scan_next_addr(uint8_t *addr);
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