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annotate Small_CPU/Inc/i2c.h @ 322:31e471d60797 O2_SensorSync

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Added start of frame detection for HUD data In the previous impmenentation the reception and evaluation of 15 byte were used without start detection. As a result sensor data could be stuck in case the frame sequence does not match the structure (e.g. cause by an framing error). To resolve this in case of an invalid checksumme in combination with a data lost detection a byte based reception is startet to detect the start of a frame using the break between two transmissions. In addition a babbling idiot protecting has been added because a faulty hardware could have an impact on the OSTC operation (high interrupt load)
author ideenmodellierer
date Sun, 30 Jun 2019 21:25:58 +0200
parents 9ecc2e60418d
children cb3870f79e9d
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1 /* Define to prevent recursive inclusion -------------------------------------*/
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2 #ifndef I2C_H
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3 #define I2C_H
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5 /* Pressure Sensor */
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6 #define DEVICE_PRESSURE 0xEE // 2019 hardware (gen 3) will use 0xEC (MS5837), all other use 0xEE (MS5803)
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8 /* Compass/Accelerometer */
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9 #define DEVICE_ACCELARATOR_MMA8452Q 0x38 // Hardware gen 1 (Two chip solution with MMA8452Q and HMC5883L)
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10 #define DEVICE_COMPASS_HMC5883L 0x3C // Hardware gen 1
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12 #define DEVICE_COMPASS_303D 0x3C // Hardware gen 2 (Single chip solution LSM303D)
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13 #define DEVICE_COMPASS_303AGR 0x3C // Hardware gen 3 (Single chip solution LSM303AGR)
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15 /* Battery Gas Gauge */
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16 #define DEVICE_BATTERYGAUGE 0xC8 // LTC2941 battery gauge
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19 /* Includes ------------------------------------------------------------------*/
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20 #include "stm32f4xx_hal.h"
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21
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22 HAL_StatusTypeDef I2C_Master_Transmit( uint16_t DevAddress, uint8_t *pData, uint16_t Size);
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23 HAL_StatusTypeDef I2C_Master_TransmitNoStop( uint16_t DevAddress, uint8_t *pData, uint16_t Size);
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24 HAL_StatusTypeDef I2C_Master_Receive( uint16_t DevAddress, uint8_t *pData, uint16_t Size);
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25 HAL_StatusTypeDef MX_I2C1_Init(void);
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26 void I2C_DeInit(void);
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27 HAL_StatusTypeDef I2C1_Status(void);
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29 GPIO_PinState MX_I2C1_TestAndClear(void);
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31 //void I2C_Error(void);
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34 #endif /* I2C_H */