raspikeyer/src/pico_keyer.cpp

#include <stdio.h>
#include <inttypes.h>

#include "pico/stdlib.h"

#include "settings.h"
#include "keyer.h"

namespace
{
    const uint LED_PIN = PICO_DEFAULT_LED_PIN;
    
    const uint RIGHT_PADDLE_PIN = 15;
}
extern const uint LEFT_PADDLE_PIN = 14;

void setup()
{

    gpio_init(LED_PIN);
    gpio_set_dir(LED_PIN, GPIO_OUT);
    gpio_put(LED_PIN, 0);

    // Setup pins for left and right paddles
    gpio_init(LEFT_PADDLE_PIN);
    gpio_set_dir(LEFT_PADDLE_PIN, GPIO_IN);
    gpio_pull_up(LEFT_PADDLE_PIN);
    gpio_init(RIGHT_PADDLE_PIN);
    gpio_set_dir(RIGHT_PADDLE_PIN, GPIO_IN);
    gpio_pull_up(RIGHT_PADDLE_PIN);
}

int main()
{
    stdio_init_all();
    timer_hw->dbgpause = 0; // fix problem with debug and sleep_ms https://github.com/raspberrypi/pico-sdk/issues/1152#issuecomment-1418248639
    sleep_ms(1000);

    setup();

    Settings settings{read_settings()};

    printf("\nIambic mode (loaded): %d\n", static_cast<int>(settings.mode));
    printf("WPM         (loaded): %d\n", settings.wpm);
    printf("Element duration (u_sec): %" PRIu64 "\n", element_duration_us(settings.wpm));

    Keyer keyer;

    while (true)
    {
        sleep_us(element_duration_us(settings.wpm));
        keyer.run();
    }

    return 0;
}