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| Rev 1479 | Rev 1486 | ||
|---|---|---|---|
| 1 | /*############################################################################ |
1 | /*############################################################################ |
| 2 | ############################################################################*/ |
2 | ############################################################################*/ |
| 3 | 3 | ||
| 4 | #ifndef _I2C_MASTER_H |
4 | #ifndef _I2C_MASTER_H |
| 5 | #define _I2C_MASTER_H |
5 | #define _I2C_MASTER_H |
| 6 | 6 | ||
| 7 | //############################################################################ |
7 | //############################################################################ |
| 8 | 8 | ||
| 9 | // I2C Konstanten |
9 | // I2C Konstanten |
| 10 | #define SCL_CLOCK 200000L |
10 | #define SCL_CLOCK 200000L |
| 11 | #define I2C_TIMEOUT 30000 |
11 | #define I2C_TIMEOUT 30000 |
| 12 | #define I2C_START 0x08 |
12 | #define I2C_START 0x08 |
| 13 | #define I2C_REPEATED_START 0x10 |
13 | #define I2C_REPEATED_START 0x10 |
| 14 | #define I2C_TX_SLA_ACK 0x18 |
14 | #define I2C_TX_SLA_ACK 0x18 |
| 15 | #define I2C_TX_DATA_ACK 0x28 |
15 | #define I2C_TX_DATA_ACK 0x28 |
| 16 | #define I2C_RX_SLA_ACK 0x40 |
16 | #define I2C_RX_SLA_ACK 0x40 |
| 17 | #define I2C_RX_DATA_ACK 0x50 |
17 | #define I2C_RX_DATA_ACK 0x50 |
| 18 | 18 | ||
| 19 | //############################################################################ |
19 | //############################################################################ |
| 20 | 20 | ||
| 21 | extern volatile unsigned char twi_state; |
21 | extern volatile unsigned char twi_state; |
| 22 | extern unsigned char motor,MissingMotor; |
22 | extern unsigned char motor,MissingMotor; |
| 23 | extern unsigned char motorread; |
23 | extern unsigned char motorread; |
| 24 | 24 | ||
| 25 | #define MAX_MOTORS 12 |
25 | #define MAX_MOTORS 12 |
| 26 | #define MOTOR_STATE_PRESENT_MASK 0x80 |
26 | #define MOTOR_STATE_PRESENT_MASK 0x80 |
| 27 | #define MOTOR_STATE_ERROR_MASK 0x7F |
27 | #define MOTOR_STATE_ERROR_MASK 0x7F |
| 28 | 28 | ||
| 29 | typedef struct |
29 | typedef struct |
| 30 | { |
30 | { |
| 31 | uint8_t SetPoint; // written by attitude controller |
31 | unsigned char SetPoint; // written by attitude controller |
| 32 | uint8_t State; // 7 bit for I2C error counter, highest bit indicates if motor is present |
32 | unsigned char State; // 7 bit for I2C error counter, highest bit indicates if motor is present |
| 33 | uint8_t Current; // in 0.1 A steps, read back from BL |
33 | unsigned char Current; // in 0.1 A steps, read back from BL |
| 34 | uint8_t MaxPWM; // read back from BL is less than 255 if BL is in current limit |
34 | unsigned char MaxPWM; // read back from BL is less than 255 if BL is in current limit |
| 35 | } __attribute__((packed)) MotorData_t; |
35 | } __attribute__((packed)) MotorData_t; |
| 36 | 36 | ||
| 37 | extern MotorData_t Motor[MAX_MOTORS]; |
37 | extern MotorData_t Motor[MAX_MOTORS]; |
| 38 | 38 | ||
| 39 | void i2c_reset(void); |
39 | void i2c_reset(void); |
| 40 | extern void i2c_init (void); // I2C initialisieren |
40 | extern void i2c_init (void); // I2C initialisieren |
| 41 | extern void i2c_start (void); // Start I2C |
41 | extern void i2c_start (void); // Start I2C |
| 42 | extern void i2c_stop (void); // Stop I2C |
42 | extern void i2c_stop (void); // Stop I2C |
| 43 | extern void i2c_write_byte (char byte); // 1 Byte schreiben |
43 | extern void i2c_write_byte (char byte); // 1 Byte schreiben |
| 44 | extern void i2c_reset(void); |
44 | extern void i2c_reset(void); |
| 45 | 45 | ||
| 46 | #endif |
46 | #endif |
| 47 | 47 | ||