diff options
| -rw-r--r-- | libmaple/include/libmaple/i2c.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/libmaple/include/libmaple/i2c.h b/libmaple/include/libmaple/i2c.h index f7821af..ff1c313 100644 --- a/libmaple/include/libmaple/i2c.h +++ b/libmaple/include/libmaple/i2c.h @@ -181,7 +181,9 @@ typedef struct i2c_msg { /* Clock control register */ #define I2C_CCR_FS (1U << 15) // Fast mode selection -#define I2C_CCR_DUTY (1U << 14) // 16/9 duty ratio +#define I2C_CCR_DUTY (1U << 14) // Fast mode duty cycle +#define I2C_CCR_DUTY_2_1 (0U << 14) // Fast mode duty: 2/1 +#define I2C_CCR_DUTY_16_9 (1U << 14) // Fast mode duty: 16/9 #define I2C_CCR_CCR 0xFFF // Clock control bits /* |