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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2248 | - | 1 | /***************************************************************************************************************************** |
| 2 | * File: twimaster.h |
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| 3 | * Purpose: header of twimaster.c |
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| 4 | *****************************************************************************************************************************/ |
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| 5 | |||
| 6 | #ifndef _I2C_MASTER_H |
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| 7 | #define _I2C_MASTER_H |
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| 8 | |||
| 9 | |||
| 10 | // ------------------------ definions for I2C --- |
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| 11 | #define SCL_CLOCK 200000L |
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| 12 | #define I2C_TIMEOUT 30000 |
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| 13 | #define I2C_START 0x08 |
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| 14 | #define I2C_REPEATED_START 0x10 |
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| 15 | #define I2C_TX_SLA_ACK 0x18 |
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| 16 | #define I2C_TX_DATA_ACK 0x28 |
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| 17 | #define I2C_RX_SLA_ACK 0x40 |
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| 18 | #define I2C_RX_DATA_ACK 0x50 |
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| 19 | |||
| 20 | |||
| 21 | extern volatile unsigned char twi_state; |
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| 22 | extern unsigned char motor,MissingMotor; |
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| 23 | extern unsigned char motorread; |
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| 24 | extern unsigned char motor_rx[]; |
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| 25 | extern unsigned char MotorPresent[]; |
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| 26 | extern unsigned char MotorError[]; |
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| 27 | |||
| 28 | extern void i2c_init(void); // initialize I2C |
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| 29 | extern void i2c_start(void); // start I2C |
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| 30 | extern void i2c_stop(void); // stop I2C |
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| 31 | extern void i2c_write_byte(char byte); // write 1 Byte |
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| 32 | extern void i2c_reset(void); // reset |
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| 33 | |||
| 34 | #endif |
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| 35 | // *** EOF: I2C_MASTER_H ****************************************************************************************************** |