Mercurial > public > ostc4
view Small_CPU/Inc/uartProtocol_O2.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 | e9eba334b942 |
| children |
line wrap: on
line source
/** ****************************************************************************** * @file uartProtocol_O2.h * @author heinrichs weikamp gmbh * @version V0.0.1 * @date 18-Jun-2023 * @brief Interface functionality to handle external, UART based O2 sensors * @verbatim ============================================================================== ##### How to use ##### ============================================================================== @endverbatim ****************************************************************************** * @attention * * <h2><center>© COPYRIGHT(c) 2014 heinrichs weikamp</center></h2> * ****************************************************************************** */ /* Define to prevent recursive inclusion -------------------------------------*/ #ifndef UART_PROTOCOL_O2_H #define UART_PROTOCOL_O2_H #ifdef __cplusplus extern "C" { #endif /* Includes ------------------------------------------------------------------*/ #include "configuration.h" #include "stm32f4xx_hal.h" typedef enum { UART_COMMON_INIT = 0, /* Default Status for every sensor type */ UART_COMMON_IDLE, /* sensor detected and no communication pending */ UART_COMMON_ERROR, /* Error message received from sensor */ } uartCommonStatus_t; typedef enum { UART_O2_INIT = UART_COMMON_INIT, /* Default Status for every sensor type */ UART_O2_IDLE = UART_COMMON_IDLE, /* sensor detected and no communication pending */ UART_O2_ERROR = UART_COMMON_ERROR, /* Error message received from sensor */ UART_O2_CHECK, /* send blink command and check if sensor answers */ UART_O2_REQ_INFO, /* request information about available internal sensors of sensor */ UART_O2_REQ_ID, /* request ID of sensor */ UART_O2_REQ_O2, /* O2 value has been requested and is in receiption progress */ UART_O2_REQ_RAW, /* Request O2 and extended raw data */ } uartO2Status_t; typedef enum { O2RX_IDLE = 0, /* no reception pending */ O2RX_CONFIRM, /* check the command echo */ O2RX_GETNR, /* extract the sensor number */ O2RX_GETO2, /* extract the ppo2 */ O2RX_GETTEMP, /* extract the temperature */ O2RX_GETSTATUS, /* extract the sensor status */ O2RX_GETTYPE, /* extract the sensor type (should be 8) */ O2RX_GETCHANNEL, /* extract the number of sensor channels (should be 1) */ O2RX_GETVERSION, /* extract the sensor version */ O2RX_GETSUBSENSORS, /* extract the available measures (O2, temperature, humidity etc) */ O2RX_GETDPHI, /* extract phase shift */ O2RX_INTENSITY, /* extract intensity of signal */ O2RX_AMBIENTLIGHT, /* extract the intensity of the ambient light */ O2RX_PRESSURE, /* extract pressure within the sensor housing */ O2RX_HUMIDITY /* extract humidity within the sensor housing */ } uartO2RxState_t; void uartO2_Control(void); void uartO2_ProcessData(uint8_t data); void uartO2_SetChannel(uint8_t channel); uint8_t uartO2_isSensorConnected(); #endif /* EXTERNAL_INTERFACE_H */
