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annotate Small_CPU/Inc/pressure.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 8e9c502c0b06
children 37f45300bc2e
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1 /* Define to prevent recursive inclusion -------------------------------------*/
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2 #ifndef PRESSURE_H
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3 #define PRESSURE_H
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5 #include <stdint.h>
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7 uint8_t init_pressure(void);
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8 uint8_t pressure_update(void);
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9 void pressure_update_alternating(void);
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11 uint8_t is_init_pressure_done(void);
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13 HAL_StatusTypeDef pressure_sensor_get_pressure_raw(void);
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14 HAL_StatusTypeDef pressure_sensor_get_temperature_raw(void);
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15 void pressure_calculation(void);
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17 float get_temperature(void);
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18 float get_pressure_mbar(void);
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19 float get_surface_mbar(void);
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21 void init_surface_ring(void);
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22 void update_surface_pressure(uint8_t call_rhythm_seconds);
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24 uint32_t demo_modify_temperature_and_pressure(int32_t divetime_in_seconds, uint8_t subseconds, float ceiling_mbar);
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26 #endif /* PRESSURE_H */
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