HAL-level handler for the PyroScience FDO2-G2 oxygen probe. More...

#include <atomic>
#include <cstddef>
#include <cstdint>
#include <memory>
#include "RtosMutex.h"
#include "base/BaseUart.h"
#include "core/hf-core-drivers/external/hf-fdo2-driver/inc/fdo2.hpp"

Classes
class	HalUartFdo2Comm
	CRTP adapter that turns a `BaseUart&` into a transport the templated `fdo2::Driver<UartT>` can drive. More...

struct	Fdo2HandlerConfig
	Construction-time configuration for one FDO2-G2 instance. More...

class	Fdo2Handler
	HAL handler wrapping one FDO2-G2 oxygen probe on a `BaseUart`. More...

Detailed Description

HAL-level handler for the PyroScience FDO2-G2 oxygen probe.

Bridges the platform-agnostic templated fdo2::Driver<UartT> (from hf-core-drivers/external/hf-fdo2-driver) to a BaseUart& reference. Apps that already own a configured UART can construct a handler with a single BaseUart& and the handler internally:

instantiates the CRTP fdo2::UartInterface<> adapter that translates BaseUart calls into the byte-level read / write / flush primitives the driver needs,
owns the templated fdo2::Driver<HalUartFdo2Comm>,
serialises every transaction through a per-bus mutex (private when the handler owns the UART exclusively; shared when multiple PSUP devices live on one bus — not possible with the FDO2-G2 today, but kept for symmetry with AlicatBasis2Handler).

Public API is intentionally narrow:

EnsureInitialized() → power-up settle + #VERS probe.
IsPresent() → cached probe result.
Identity() → cached VersionInfo.
MeasureMoxy() / MeasureMraw() → one PSUP transaction.
ReadVersion() / ReadUniqueId() → re-read identity / serial.

The handler does not spawn its own thread; the polling cadence and lock-free caching policy live in the app.

Pattern follows the rest of the HAL handler family (AlicatBasis2Handler, Ads7952Handler, Tle92466edHandler, Max22200Handler).

Classes

Detailed Description