#pragma once #include #include #include // NRF_TWIM_Type #include namespace Pinetime { namespace Drivers { class TwiMaster { public: enum class Modules { TWIM1 }; enum class Frequencies { Khz100, Khz250, Khz400 }; enum class ErrorCodes { NoError, TransactionFailed }; struct Parameters { uint32_t frequency; uint8_t pinSda; uint8_t pinScl; }; TwiMaster(const Modules module, const Parameters& params); void Init(); ErrorCodes Read(uint8_t deviceAddress, uint8_t registerAddress, uint8_t* buffer, size_t size); ErrorCodes Write(uint8_t deviceAddress, uint8_t registerAddress, const uint8_t* data, size_t size); void Sleep(); void Wakeup(); void ConfigurePins() const; private: ErrorCodes Read(uint8_t deviceAddress, uint8_t* buffer, size_t size, bool stop); ErrorCodes Write(uint8_t deviceAddress, const uint8_t* data, size_t size, bool stop); void FixHwFreezed(); NRF_TWIM_Type* twiBaseAddress; SemaphoreHandle_t mutex = nullptr; const Modules module; const Parameters params; static constexpr uint8_t maxDataSize {16}; static constexpr uint8_t registerSize {1}; uint8_t internalBuffer[maxDataSize + registerSize]; uint32_t txStartedCycleCount = 0; static constexpr uint32_t HwFreezedDelay {161000}; }; } }