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40 lines
1.5 KiB
40 lines
1.5 KiB
/* Copyright 2018 Jack Humbert
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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 2 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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#include "ch.h"
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#include "hal.h"
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#ifndef I2C_DRIVER
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#define I2C_DRIVER I2CD1
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#endif
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#define slaveI2Caddress 0x30 /* Address in our terms - halved by later code */
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//#define myOtherI2Caddress 0x19
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I2CSlaveMsgCB twi2c_slave_message_process, catchError, clearAfterSend;
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void twi2c_slave_init(void);
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void twi2c_init(void);
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uint8_t twi2c_start(uint8_t address);
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uint8_t twi2c_write(uint8_t data);
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uint8_t twi2c_read_ack(void);
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uint8_t twi2c_read_nack(void);
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uint8_t twi2c_transmit(uint8_t address, uint8_t* data, uint16_t length);
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uint8_t twi2c_receive(uint8_t address, uint8_t* data, uint16_t length);
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uint8_t twi2c_writeReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length);
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uint8_t twi2c_readReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length);
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void twi2c_stop(void);
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