Calls to Spi::Init() are not needed, pin initialization is already done in ctor().
Remove calls to Spi::Sleep()/Spi::Wakeup() to ensure that SPI CS pins are kept high even in sleep mode.
Ensure that all pins are set to their default configuration during sleep mode.
Disable the workaround for FTPAN58 (SPI freezes when transfering a single byte) at the end of the transfer. This disables the resources needed for the workaround.
Those changes reduce the power usage by 430-490µA.
Put the HRS3300 to sleep mode when InfiniTime is going to sleep. This change reduces the power consumption by 130µA when the heart rate sensor is disabled.
* Refactor and document the Watchdog driver to make it more readable.
Fix the configuration of the behaviours configuration that was not properly implemented (but it didn't cause any side effect since the correct value was eventually set in NRF_WDT->CONFIG).
Fix the wrong interpretation of the reset reasons caused by implicit conversions of int to bool.
New implementation of the heart rate sensor data processing using a frequency based PPG algorithm.
The HRS3300 settings are fine-tuned for better signal to noise at 10Hz.
The measurement delay is now set to 100ms.
Enable and use the ambient light sensor.
FFT implementation based on ArduinoFFT (https://github.com/kosme/arduinoFFT, GPLv3.0).
This should ensure better readability of the pin setup procedure,
as well as allow the configuration of the hardware button enable pin
and the accelerometer interrupt pin via the pin mapping header.
There is a large step in brightness from level zero to level one.
After experimenting with various ST7789 options, I found that
decreasing VDV to 0x10 (-0.4V) fixes this issue.
The gamma change reduced the average error in brightness, but with the
underlying issue fixed, the gamma change has been reverted.
`SpiNorFlash.h` is a C++ header, but the `Identification` struct is
created in a C style using `typedef struct`. Clang issues a warining
about this discrepancy:
```
In file included from /home/nero/repos/pinetime/InfiniSim/InfiniTime/src/systemtask/SystemTask.cpp:13:
/home/nero/repos/pinetime/InfiniSim/sim/drivers/SpiNorFlash.h:16:21: warning: anonymous non-C-compatible type given name for linkage purposes by typedef declaration; add a tag name here [-Wnon-c-typedef-for-linkage]
typedef struct __attribute__((packed)) {
^
Identification
/home/nero/repos/pinetime/InfiniSim/sim/drivers/SpiNorFlash.h:17:9: note: type is not C-compatible due to this default member initializer
uint8_t manufacturer = 0;
^~~~~~~~~~~~~~~~~~~~
/home/nero/repos/pinetime/InfiniSim/sim/drivers/SpiNorFlash.h:20:9: note: type is given name 'Identification' for linkage purposes by this typedef declaration
} Identification;
^
1 warning generated.
```
The easy fix is to use a C++ style struct.
Also includes code style fix from Riksu9000
Co-authored-by: Riku Isokoski <riksu9000@gmail.com>
Don't use relative imports like `../foo.h` as those depend on the
relative position of both files. Rather than that use imports relative
to the `src` directory, which explicitly is part of the include
directories.
