view Small_CPU/Inc/uartProtocol_Sentinel.h @ 1063:a3f42192da0f Icon_Integration

Always use polling mode for CO2 operation: In the previous version the CO2 sensor was operated in streaming mode (2 measurements a second) in case it was used stand alone (without multiplexer). This added some complexity to the implementation (setup, error handling etc). To reduce this the sensor will now always be operated in polling mode like it is done for multiplexer operation. To make sure that the correct mode is set a command has been added to the configuration steps.
author Ideenmodellierer
date Wed, 11 Feb 2026 18:35:44 +0100
parents 785772303f9c
children
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/**
  ******************************************************************************
  * @file    uartProtocol_Sentinel.h
  * @author  heinrichs weikamp gmbh
  * @version V0.0.1
  * @date    15-Jan-2024
  * @brief	 Interface functionality read data from Sentinel rebreather
  *
  @verbatim
  ==============================================================================
                        ##### How to use #####
  ==============================================================================
  @endverbatim
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT(c) 2014 heinrichs weikamp</center></h2>
  *
  ******************************************************************************
  */

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

#ifdef __cplusplus
 extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/
#include "configuration.h"
#include "stm32f4xx_hal.h"

/* Bit flags for different sensor types provided by Sentinel or Red Head/Bare */

#define SENTINEL_O2			0x01
#define SENTINEL_CO2		0x02
#define SENTINEL_PRESSURE	0x04
#define SENTINEL_TEMPSTICK	0x08



#define	UART_SENTINEL_O2_P 	'T'				/* Primary O2 sensor */
#define	UART_SENTINEL_O2_S	'S'				/* Secondary O2 sensor */
#define	UART_SENTINEL_PRESSURE_O2 	'I'		/* O2 pressure */
#define	UART_SENTINEL_PRESSURE_D	'J'		/* Diluent pressure */
#define	UART_SENTINEL_TEMPSTICK		'Y'		/* Sector value of the tempstick */

 typedef enum
  {
	UART_SENTINEL_INIT = 0,		/* Default Status for every sensor type */
	UART_SENTINEL_IDLE,			/* sensor detected and no communication pending */
	UART_SENTINEL_ERROR,
  	UART_SENTINEL_OPERATING,		/* normal operation */
  } uartSentinelStatus_t;

  typedef enum
  {
  	SENTRX_Ready= 0,					/* Initial state */
 	SENTRX_DetectStart,					/* validate start byte */
 	SENTRX_SelectData,					/* Data contained in this frame */
  	SENTRX_Data0,						/* Process incoming data */
 	SENTRX_Data1,
 	SENTRX_Data2,
 	SENTRX_Data3,
 	SENTRX_Data4,
 	SENTRX_Data5,
 	SENTRX_Data6,
 	SENTRX_Data7,
 	SENTRX_Data8,
 	SENTRX_Data9,
 	SENTRX_Data10,
 	SENTRX_CheckSum,
 	SENTRX_DataComplete
  } receiveStateSentinel_t;


void uartSentinel_Control(void);
void uartSentinel_ProcessData(uint8_t data);
uint8_t uartSentinel_isSensorConnected();

#endif /* UART_PROTOCOL_SENTINEL_H */