/* Writes a full string to the VFD display.  */
void samsungvfdWriteString(const char *str)
/* Writes a full string to the VFD display.  */
void samsungvfdWriteString(const char *str)
{
  while(*str)
  {
    gpioSetValue(SAMSUNGVFD_STB_PORT, SAMSUNGVFD_STB_PIN, 0);
    samsungvfd_sendByte(SAMSUNGVFD_SPIDATA);
    samsungvfd_sendByte(*str++);
    gpioSetValue(SAMSUNGVFD_STB_PORT, SAMSUNGVFD_STB_PIN, 1);
  }
}