meCoffee_in_CPP/lib/meCoffee_hardware_access/src/board_profile.h

#pragma once

#include <stdint.h>

#ifndef MECOFFEE_ARDUINO_16MHZ
#define MECOFFEE_ARDUINO_16MHZ 0
#endif

namespace meCoffee::hardware::board {

constexpr bool kUsesExternalClock = MECOFFEE_ARDUINO_16MHZ != 0;
constexpr uint32_t kClockFrequency = kUsesExternalClock ? 16000000UL : 8000000UL;
constexpr uint16_t kPulseTimerCompare = static_cast<uint16_t>(129UL * (kClockFrequency / 8000000UL) - 1);
constexpr uint8_t kAdcPrescaler = 128;
constexpr uint8_t kGenerationParityPin = kUsesExternalClock ? 11 : 14;

inline uint8_t physicalPin(uint8_t logicalPin) {
    if (!kUsesExternalClock) {
        return logicalPin;
    }
    switch (logicalPin) {
        case 3: return 3;
        case 10: return 4;
        case 9: return 5;
        case 4: return 6;
        case 5: return 7;
        case 8: return 8;
        case 15: return 9;
        case 19: return 10;
        case 16: return 12;
        default: return logicalPin;
    }
}

inline uint8_t analogChannel(uint8_t logicalChannel) {
    if (kUsesExternalClock) {
        if (logicalChannel == 3) {
            return 0;
        }
        if (logicalChannel == 4) {
            return 1;
        }
    }
    return logicalChannel;
}

}  // namespace meCoffee::hardware::board