21 #ifndef __STM32F4xx_HAL_I2C_EX_H
22 #define __STM32F4xx_HAL_I2C_EX_H
28 #if defined(I2C_FLTR_ANOFF)&&defined(I2C_FLTR_DNF)
30 #include "stm32f4xx_hal_def.h"
49 #define I2C_ANALOGFILTER_ENABLE 0x00000000U
50 #define I2C_ANALOGFILTER_DISABLE I2C_FLTR_ANOFF
93 #define IS_I2C_ANALOG_FILTER(FILTER) (((FILTER) == I2C_ANALOGFILTER_ENABLE) || \
94 ((FILTER) == I2C_ANALOGFILTER_DISABLE))
95 #define IS_I2C_DIGITAL_FILTER(FILTER) ((FILTER) <= 0x0000000FU)