#include <unistd.h>
#include "usart.h"

Usart::Usart(const uint32_t _baud) noexcept : BaseLayer (), tx_ring () {
}
void Usart::irq () {
}
void Usart::SetRS485  (const bool polarity) const {
}
void Usart::SetHalfDuplex  (const bool on) const {
}

uint32_t Usart::Down  (const char * data, const uint32_t len) {
  const int n = ::write (1, data, len);
  return n;
}
extern "C" {
  void __cxa_pure_virtual() { while (1); }
  int terminate () {
    return 0;
  }
};