Clase timers

void delayus (uint32_t microseconds)
{
    uint32_t overflows;
    uint32_t partial;

    overflows = microseconds/65536 + 1;
    //partial = microseconds - overflow * 65536;
    partial = microseconds % 65536;

    counter_flags = 0;
    while (counter_flags < overflows)
    {
        while(comprobar flag) {};
        borrar flag
        counter_flags++;
    }
}