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view Small_CPU/Inc/externalInterface.h @ 729:d646a0f724a7

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Added auto detection functionality for sensors connected to the external interface: O2 sensors may be connected to the analog input as well as to the UART. The GUI visualization provides three slots for ppo2 display. Beside detection of sensor kind the task of the function is to place the available sensor in this three slots. CO2 has its own communication slot outside the ppo2 channel. The result of the automatic detection is communicated via the sensor map.
author Ideenmodellierer
date Sat, 14 Jan 2023 20:46:17 +0100
parents 045ff7800501
children 2a801cfe23ab
line wrap: on
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/**
  ******************************************************************************
  * @file    externalInterface.h
  * @author  heinrichs weikamp gmbh
  * @version V0.0.1
  * @date    07-Nov-2020
  * @brief	 Interface functionality to proceed external analog signal via i2c connection
  *
  @verbatim
  ==============================================================================
                        ##### How to use #####
  ==============================================================================
  @endverbatim
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT(c) 2014 heinrichs weikamp</center></h2>
  *
  ******************************************************************************
  */

/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef EXTERNAL_INTERFACE_H
#define EXTERNAL_INTERFACE_H

#ifdef __cplusplus
 extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/

#define MAX_ADC_CHANNEL		(3u)		/* number of channels to be read */
#define EXTERNAL_ADC_NO_DATA	0xFF

#define EXT33V_CONTROL_PIN				GPIO_PIN_7	/* PortC */

#define MIN_ADC_VOLTAGE_MV	(5.0f)		/* miminal voltage to rate an ADC channel as active */


 typedef enum
 {
    DETECTION_OFF = 0,		/* no detection requested */
	DETECTION_INIT,			/* prepare external interface for operation if not already activated */
	DETECTION_ANALOG,		/* check ADC channels for connected sensors */
	DETECTION_DIGO2,		/* check UART channel for connected DigO2 sensor */
	DETECTION_CO2,			/* check UART channel for connected CO2 sensor */
	DETECTION_DONE
 } externalInterfaceAutoDetect_t;




void externalInterface_Init(void);
void externalInterface_InitPower33(void);
uint8_t externalInterface_StartConversion(uint8_t channel);
uint8_t externalInterface_ReadAndSwitch();
float externalInterface_CalculateADCValue(uint8_t channel);
float getExternalInterfaceChannel(uint8_t channel);
uint8_t setExternalInterfaceChannel(uint8_t channel, float value);
void externalInterface_SwitchPower33(uint8_t state);
void externalInterface_SwitchADC(uint8_t state);
void externalInterface_SwitchUART(uint8_t protocol);
uint8_t externalInterface_isEnabledPower33(void);
uint8_t externalInterface_isEnabledADC(void);
uint8_t externalInterface_GetUARTProtocol();

void externalInterface_SetCO2Value(uint16_t CO2_ppm);
void externalInterface_SetCO2SignalStrength(uint16_t LED_qa);
uint16_t externalInterface_GetCO2Value(void);
uint16_t externalInterface_GetCO2SignalStrength(void);
void externalInterface_SetCO2State(uint16_t state);
uint16_t externalInterface_GetCO2State(void);
uint8_t externalInterface_GetSensorData(uint8_t* pDataStruct);
void externalInterface_SetSensorData(uint8_t dataId, uint8_t* pDataStruct);
void externalInface_SetSensorMap(uint8_t* pMap);
uint8_t* externalInterface_GetSensorMapPointer(void);
void externalInterface_AutodetectSensor(void);
void externalInterface_ExecuteCmd(uint16_t Cmd);

#endif /* EXTERNAL_INTERFACE_H */