annotate Small_CPU/Inc/externalInterface.h @ 652:f6212495f34f

Allow setpoint starting at 0.4 ppO2: Some rebreathers (e.g. Sentinel) start with a ppO2 of 0.4 Bar => modified range check to allow this value (was 0.5 before)
author Ideenmodellierer
date Mon, 19 Apr 2021 20:34:53 +0200
parents 3328189786e7
children 1b995079c045
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1 /**
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2 ******************************************************************************
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3 * @file externalInterface.h
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4 * @author heinrichs weikamp gmbh
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5 * @version V0.0.1
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6 * @date 07-Nov-2020
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7 * @brief Interface functionality to proceed external analog signal via i2c connection
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8 *
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9 @verbatim
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10 ==============================================================================
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11 ##### How to use #####
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12 ==============================================================================
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13 @endverbatim
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14 ******************************************************************************
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15 * @attention
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16 *
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17 * <h2><center>&copy; COPYRIGHT(c) 2014 heinrichs weikamp</center></h2>
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18 *
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19 ******************************************************************************
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20 */
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21
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22 /* Define to prevent recursive inclusion -------------------------------------*/
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23 #ifndef EXTERNAL_INTERFACE_H
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24 #define EXTERNAL_INTERFACE_H
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25
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26 #ifdef __cplusplus
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27 extern "C" {
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28 #endif
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29
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30 /* Includes ------------------------------------------------------------------*/
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31
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32 #define MAX_ADC_CHANNEL (3u) /* number of channels to be read */
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33 #define EXTERNAL_ADC_NO_DATA 0xFF
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34
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35 void externalInterface_Init(void);
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36 uint8_t externalInterface_StartConversion(uint8_t channel);
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37 uint8_t externalInterface_ReadAndSwitch();
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38 float externalInterface_CalculateADCValue(uint8_t channel);
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39 float getExternalInterfaceChannel(uint8_t channel);
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40
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41 #endif /* EXTERNAL_INTERFACE_H */