--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Small_CPU/Inc/i2c.h	Sat Apr 28 11:52:34 2018 +0200
@@ -0,0 +1,35 @@
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef I2C_H
+#define I2C_H
+
+/* Drucksensor */
+#define DEVICE_PRESSURE        0xEE
+
+/* Kompass */
+#define DEVICE_ACCELARATOR_MMA8452Q 0x38 // 0x1C  // chip 3
+#define DEVICE_COMPASS_HMC5883L			0x3C  //0x1E  // chip 4
+
+//#define DEVICE_ACCELARATOR_303D 		0x1E // x0011110 // SA0 to GND
+#define DEVICE_COMPASS_303D						0x3C // 0x1E // x0011110_ // SA0 to GND
+#define DEVICE_ACCELARATOR_303DLHC 		0x32 // 0x19 // x0011001_ // SA0 to GND
+
+/* Battery Gas Gauge */
+#define DEVICE_BATTERYGAUGE 0xC8 // 0x64
+
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f4xx_hal.h"
+
+HAL_StatusTypeDef I2C_Master_Transmit(  uint16_t DevAddress, uint8_t *pData, uint16_t Size);
+HAL_StatusTypeDef I2C_Master_TransmitNoStop(  uint16_t DevAddress, uint8_t *pData, uint16_t Size);
+HAL_StatusTypeDef I2C_Master_Receive(  uint16_t DevAddress, uint8_t *pData, uint16_t Size);
+HAL_StatusTypeDef MX_I2C1_Init(void);
+void I2C_DeInit(void);
+HAL_StatusTypeDef I2C1_Status(void);
+
+GPIO_PinState MX_I2C1_TestAndClear(void);
+
+//void I2C_Error(void);
+
+
+#endif /* I2C_H */