ad3bf49c7b
- Combine the reading of all `HRS3300` registers into one I2C read so data is not partial
- Downsizes both HRS and ALS to 16bit as the sensor does not generate larger than
16bit values in its current configuration
- Increasing the resolution by 1 bit doubles the sensor acquisition time,
since we are already at 10Hz we are never going to use a higher resolution
- The PPG algorithm buffers for ALS/HRS are already 16bit anyway
- Remove functions for setting gain / drive that are unused throughout the codebase
- Calculate constants with constexpr
48 lines
1 KiB
C++
48 lines
1 KiB
C++
#pragma once
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#include "drivers/TwiMaster.h"
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namespace Pinetime {
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namespace Drivers {
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class Hrs3300 {
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public:
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enum class Registers : uint8_t {
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Id = 0x00,
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Enable = 0x01,
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EnableHen = 0x80,
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C1dataM = 0x08,
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C0DataM = 0x09,
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C0DataH = 0x0a,
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PDriver = 0x0c,
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C1dataH = 0x0d,
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C1dataL = 0x0e,
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C0dataL = 0x0f,
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Res = 0x16,
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Hgain = 0x17
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};
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struct PackedHrsAls {
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uint16_t hrs;
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uint16_t als;
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};
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Hrs3300(TwiMaster& twiMaster, uint8_t twiAddress);
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Hrs3300(const Hrs3300&) = delete;
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Hrs3300& operator=(const Hrs3300&) = delete;
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Hrs3300(Hrs3300&&) = delete;
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Hrs3300& operator=(Hrs3300&&) = delete;
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void Init();
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void Enable();
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void Disable();
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PackedHrsAls ReadHrsAls();
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private:
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TwiMaster& twiMaster;
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uint8_t twiAddress;
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void WriteRegister(uint8_t reg, uint8_t data);
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uint8_t ReadRegister(uint8_t reg);
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};
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}
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}
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