[En-Nut-Discussion] UART 0 + 1

[Hermann Schulz]

Hello group,

I use Ethernut 2.1 Version 4.2.1 and the AVR Icc V7 Compiler.
Compiler Switch: ETHERNUT2 __MCU_enhanced __HARVARD_ARCH__
CPU AT Mega 128

  len = _read(_fileno(uart), inbuf, sizeof(inbuf));
  if(len)
    _write(_fileno(uart), inbuf, len);

When I go to this routine first, it works correctly.
But all next steps I get in the len the value of sizeof(inbuf) (128 Bytes).

Can anybody give me a hint?

regards
Hermann