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annotate Small_CPU/Inc/i2c.h @ 232:f0069f002c55 div-fixes-4-1

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Bugfix: make date/time setting work over reboots Setting the time/date over the UART interface or by the menu, seems to work, but a reboot of the RTE brings back strange, seemingly random, time. The reason for this is rather simple. In the settings, a time is stored, based on some flawed logic, and that time was restored on reboot. There is no reason to store any time, when the moment of restoring it is unrelated in time. So, the fix is simple: do not set time (in the RTC) based on some time from the past. The whole idea of a RTC is that it does preserve the time for you, as long its powered. Any attempt to do things better using stored time data is futile (and nonsense). And while working on his, also kick out some useless code from the RTE. There is no reason to initialize the time on the RTC to some random time/date in the past. A zero data/time is as good and any random date. Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
author Jan Mulder <jlmulder@xs4all.nl>
date Wed, 03 Apr 2019 21:11:56 +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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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 */