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/*****************************************************************************************************************************
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* File:                 twimaster.h
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* Purpose:              header of twimaster.c
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*****************************************************************************************************************************/
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#ifndef _I2C_MASTER_H
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 #define _I2C_MASTER_H
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// ------------------------ definions for I2C ---
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#define SCL_CLOCK  200000L
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#define I2C_TIMEOUT 30000
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#define I2C_START          0x08
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#define I2C_REPEATED_START 0x10
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#define I2C_TX_SLA_ACK     0x18
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#define I2C_TX_DATA_ACK    0x28
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#define I2C_RX_SLA_ACK     0x40
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#define I2C_RX_DATA_ACK    0x50
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extern volatile unsigned char twi_state;
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extern unsigned char motor,MissingMotor;
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extern unsigned char motorread;
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extern unsigned char motor_rx[];
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extern unsigned char MotorPresent[];
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extern unsigned char MotorError[];
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extern void i2c_init(void);                                     // initialize I2C
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extern void i2c_start(void);                                    // start I2C
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extern void i2c_stop(void);                                     // stop I2C
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extern void i2c_write_byte(char byte);                  // write 1 Byte
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extern void i2c_reset(void);                                    // reset
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#endif
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// *** EOF: I2C_MASTER_H ******************************************************************************************************