Rev 976 | Only display areas with differences | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed
| Rev 976 | Rev 977 | ||
|---|---|---|---|
| 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; |
22 | extern unsigned char motor; |
| 23 | extern unsigned char motorread; |
23 | extern unsigned char motorread; |
| 24 | extern unsigned char motor_rx[8]; |
24 | extern unsigned char motor_rx[2*MOTOR_COUNT]; |
| 25 | 25 | ||
| 26 | void i2c_reset(void); |
26 | void i2c_reset(void); |
| 27 | extern void i2c_init (void); // I2C initialisieren |
27 | extern void i2c_init (void); // I2C initialisieren |
| 28 | extern char i2c_start (void); // Start I2C |
28 | extern char i2c_start (void); // Start I2C |
| 29 | extern void i2c_stop (void); // Stop I2C |
29 | extern void i2c_stop (void); // Stop I2C |
| 30 | extern char i2c_write_byte (char byte); // 1 Byte schreiben |
30 | extern char i2c_write_byte (char byte); // 1 Byte schreiben |
| 31 | extern void i2c_reset(void); |
31 | extern void i2c_reset(void); |
| 32 | 32 | ||
| 33 | #endif |
33 | #endif |
| 34 | 34 | ||