diff options
| -rw-r--r-- | libmaple/include/libmaple/i2c.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/libmaple/include/libmaple/i2c.h b/libmaple/include/libmaple/i2c.h index 217bead..26a0b65 100644 --- a/libmaple/include/libmaple/i2c.h +++ b/libmaple/include/libmaple/i2c.h @@ -125,6 +125,16 @@ extern i2c_dev* const I2C2; #define I2C_CR1_ACK (1U << 10) // Acknowledge enable #define I2C_CR1_STOP (1U << 9) // Stop generation #define I2C_CR1_START (1U << 8) // Start generation +#define I2C_CR1_NOSTRETCH (1U << 7) // Clock stretching disable +#define I2C_CR1_ENGC (1U << 6) // General call enable +#define I2C_CR1_ENPEC (1U << 5) // PEC enable +#define I2C_CR1_ENARP (1U << 4) // ARP enable +#define I2C_CR1_SMBTYPE (1U << 3) // SMBus type +#define I2C_CR1_SMBTYPE_DEVICE (0U << 3) // SMBus type: device +#define I2C_CR1_SMBTYPE_HOST (1U << 3) // SMBus type: host +#define I2C_CR1_SMBUS (1U << 1) // SMBus mode +#define I2C_CR1_SMBUS_I2C (0U << 1) // SMBus mode: I2C +#define I2C_CR1_SMBUS_SMBUS (1U << 1) // SMBus mode: SMBus #define I2C_CR1_PE (1U << 0) // Peripheral Enable /* Control register 2 */ @@ -136,6 +146,18 @@ extern i2c_dev* const I2C2; #define I2C_CR2_ITERREN (1U << 8) // Error interupt enable #define I2C_CR2_FREQ 0x3F // Peripheral input frequency +/* Own address register 1 */ + +#define I2C_OAR1_ADDMODE (1U << 15) // Addressing mode +#define I2C_OAR1_ADDMODE_7_BIT (0U << 15) // Addressing mode: 7-bit +#define I2C_OAR1_ADDMODE_10_BIT (1U << 15) // Addressing mode: 10-bit +#define I2C_OAR1_ADD 0x3FF // Interface address + +/* Own address register 2 */ + +#define I2C_OAR2_ADD2 0xFE // Interface address +#define I2C_OAR2_ENDUAL 1U // Dual addressing mode enable + /* Clock control register */ #define I2C_CCR_FS (1U << 15) // Fast mode selection |