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#ifndef __I2C_SOFT_INIT_H__
#define __I2C_SOFT_INIT_H__
#include <rtthread.h>
#include <rtdevice.h>
#define I2C1_GPIO GPIOB
#define I2C1_GPIO_SCL GPIO_Pin_6
#define I2C1_GPIO_SDA GPIO_Pin_7
#define RCC_I2C RCC_APB2Periph_GPIOB
int rt_hw_i2c_init(void);
void stm32_set_sda(void *data, rt_int32_t state);
void stm32_set_scl(void *data, rt_int32_t state);
rt_int32_t stm32_get_sda(void *data);
rt_int32_t stm32_get_scl(void *data);
void stm32_udelay(rt_uint32_t us);
void stm32_mdelay(rt_uint32_t ms);
static void RCC_Configuration(void);
static void GPIO_Configuration(void);
#endif
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