/**+
−
  ******************************************************************************+
−
  * @file    uartProtocol_Co2.h+
−
  * @author  heinrichs weikamp gmbh+
−
  * @version V0.0.1+
−
  * @date    31-Jul-2023+
−
  * @brief	 Interface functionality to handle external, UART based CO2 sensors+
−
  *+
−
  @verbatim+
−
  ==============================================================================+
−
                        ##### How to use #####+
−
  ==============================================================================+
−
  @endverbatim+
−
  ******************************************************************************+
−
  * @attention+
−
  *+
−
  * <h2><center>&copy; COPYRIGHT(c) 2014 heinrichs weikamp</center></h2>+
−
  *+
−
  ******************************************************************************+
−
  */+
−
+
−
/* Define to prevent recursive inclusion -------------------------------------*/+
−
#ifndef UART_PROTOCOL_CO2_H+
−
#define UART_PROTOCOL_CO2_H+
−
+
−
#ifdef __cplusplus+
−
 extern "C" {+
−
#endif+
−
+
−
/* Includes ------------------------------------------------------------------*/+
−
#include "configuration.h"+
−
#include "stm32f4xx_hal.h"+
−
+
−
 typedef enum+
−
  {+
−
	UART_CO2_INIT = 0,		/* Default Status for every sensor type */+
−
	UART_CO2_IDLE,			/* sensor detected and no communication pending */+
−
	UART_CO2_ERROR,+
−
 	UART_CO2_SETUP = 10,	/* collecting data needed to be read out of the sensor once at startup */+
−
  	UART_CO2_OPERATING,		/* normal operation */+
−
	UART_CO2_CALIBRATE		/* request calibration */+
−
  } uartCO2Status_t;+
−
+
−
  typedef enum+
−
  {+
−
  	CO2RX_Ready= 0,					/* Initial state */+
−
 	CO2RX_DetectStart,					/* validate start byte */+
−
 	CO2RX_SelectData,					/* Data contained in this frame */+
−
  	CO2RX_Data0,						/* Process incoming data */+
−
 	CO2RX_Data1,+
−
 	CO2RX_Data2,+
−
 	CO2RX_Data3,+
−
 	CO2RX_Data4,+
−
 	CO2RX_Data5,+
−
 	CO2RX_Data6,+
−
 	CO2RX_Data7,+
−
 	CO2RX_Data8,+
−
 	CO2RX_Data9,+
−
 	CO2RX_Data10,+
−
 	CO2RX_Data11,+
−
 	CO2RX_Data12,+
−
 	CO2RX_DataComplete+
−
  } receiveStateCO2_t;+
−
+
−
+
−
 typedef enum+
−
 {+
−
 	CO2CMD_MODE_POLL,		/* Set operation mode of sensor to polling => only send data if requested */+
−
 	CO2CMD_MODE_STREAM,		/* Set operation mode of sensor to streaming => send data every two seconds */+
−
 	CO2CMD_CALIBRATE,		/* Calibrate sensor */+
−
 	CO2CMD_GETSCALE,		/* Get scaling factor */+
−
 	CO2CMD_GETDATA			/* Read sensor data */+
−
 } co2SensorCmd_t;+
−
+
−
+
−
void uartCo2_Control(void);+
−
void uartCo2_ProcessData(uint8_t data);+
−
void uartCo2_SendCmd(uint8_t CO2Cmd, uint8_t *cmdString, uint8_t *cmdLength);+
−
uint8_t uartCo2_isSensorConnected();+
−
+
−
#endif /* UART_PROTOCOL_CO2_H */+
−