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struct i2c_type
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struct i2c_type
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{
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{
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unsigned char address;
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unsigned char address;
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unsigned char pointer;
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unsigned char pointer;
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unsigned short data;
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unsigned short data;
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};
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};
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struct i2c_mode
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struct i2c_mode
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{
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{
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unsigned char read_write;
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unsigned char read_write;
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unsigned char byte_word;
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unsigned char byte_word;
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unsigned char ptr_set;
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unsigned char ptr_set;
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};
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};
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typedef struct i2c_type i2c_type;
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typedef struct i2c_type i2c_type;
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typedef struct i2c_mode i2c_mode;
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typedef struct i2c_mode i2c_mode;
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#define I2C_BUF_LEN 10
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void i2c_init(void);
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void i2c_init(void);
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void i2c_irq(void);
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void i2c_irq(void);
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i2c_type * i2c_get(void); //return pointer to first non read received data
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i2c_type * i2c_get(void); //return pointer to first non read received data
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void i2c_set_ack_lvl(int ack_lvl, int final_ack_lvl);
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void i2c_set_ack_lvl(int ack_lvl, int final_ack_lvl);
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int i2c_trans(i2c_mode * mode, i2c_type * data); //return (-1) or length (still processing previous) or asserted
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int i2c_trans(i2c_mode * mode, i2c_type * data); //return (-1) or length (still processing previous) or asserted
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#define I2C_BUF_LEN 10
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#define I2C_PRESC_LO 0x00
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#define I2C_PRESC_LO 0x00
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#define I2C_PRESC_HI 0x01
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#define I2C_PRESC_HI 0x01
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#define I2C_CTR 0x02
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#define I2C_CTR 0x02
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#define I2C_TXR 0x03
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#define I2C_TXR 0x03
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#define I2C_RXR 0x03
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#define I2C_RXR 0x03
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#define I2C_CR 0x04
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#define I2C_CR 0x04
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#define I2C_SR 0x04
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#define I2C_SR 0x04
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//BITS
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//BITS
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#define I2C_CTR_EN 0x80
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#define I2C_CTR_EN 0x80
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#define I2C_CTR_IRQ_EN 0x40
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#define I2C_CTR_IRQ_EN 0x40
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#define I2C_TXR_ADR 0xFE
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#define I2C_TXR_ADR 0xFE
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#define I2C_TXR_W 0x00
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#define I2C_TXR_W 0x00
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#define I2C_TXR_R 0x01
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#define I2C_TXR_R 0x01
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#define I2C_CR_STA 0x80
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#define I2C_CR_STA 0x80
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#define I2C_CR_STO 0x40
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#define I2C_CR_STO 0x40
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#define I2C_CR_RD 0x20
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#define I2C_CR_RD 0x20
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#define I2C_CR_WR 0x10
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#define I2C_CR_WR 0x10
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#define I2C_CR_ACK 0x00
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#define I2C_CR_ACK 0x00
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#define I2C_CR_NACK 0x08
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#define I2C_CR_NACK 0x08
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#define I2C_CR_CLR_IRQ 0x01
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#define I2C_CR_CLR_IRQ 0x01
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#define I2C_SR_R_ACK 0x80
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#define I2C_SR_R_ACK 0x80
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#define I2C_SR_BUSY 0x40
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#define I2C_SR_BUSY 0x40
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#define I2C_SR_ARB_LOST 0x20
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#define I2C_SR_ARB_LOST 0x20
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#define I2C_SR_TX_BUSY 0x02
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#define I2C_SR_TX_BUSY 0x02
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#define I2C_SR_IRQ_FLAG 0x01
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#define I2C_SR_IRQ_FLAG 0x01
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No newline at end of file
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No newline at end of file
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