X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=bertos%2Fcpu%2Favr%2Fdrv%2Fser_avr.c;h=783f6cdaec0a66ecdfbc28b90e9fe3687a9b4ee5;hb=bfa94e1d31d9d9c1d9bcaf4313cd112d43e772a4;hp=cf47c09e47a386d76c11d79375b061f5c54d3be5;hpb=c22fe24a0da896a52dbc3882390ec18a440ef56a;p=bertos.git

diff --git a/bertos/cpu/avr/drv/ser_avr.c b/bertos/cpu/avr/drv/ser_avr.c
index cf47c09e..783f6cda 100644
--- a/bertos/cpu/avr/drv/ser_avr.c
+++ b/bertos/cpu/avr/drv/ser_avr.c
@@ -31,32 +31,10 @@
  *
  * -->
  *
- * \brief AVR UART and SPI I/O driver
- *
- * Rationale for project_ks hardware.
- *
- * The serial 0 on the board_kf board is used to communicate with the
- * smart card, which has the TX and RX lines connected together. To
- * allow the smart card to drive the RX line of the CPU the CPU TX has
- * to be in a high impedance state.
- * Whenever a transmission is done and there is nothing more to send
- * the transmitter is turn off. The output pin is held in input with
- * pull-up enabled, to avoid capturing noise from the nearby RX line.
- *
- * The line on the KBus port must keep sending data, even when
- * there is nothing to transmit, because a burst data transfer
- * generates noise on the audio channels.
- * This is accomplished using the multiprocessor mode of the
- * ATmega64/128 serial.
- *
- * The receiver keeps the MPCM bit always on. When useful data
- * is trasmitted the address bit is set. The receiver hardware
- * consider the frame as address info and receive it.
- * When useless fill bytes are sent the address bit is cleared
- * and the receiver will ignore them, avoiding useless triggering
- * of RXC interrupt.
+ * \brief AVR UART and SPI I/O driver (Implementation)
  *
  * \version $Id$
+ *
  * \author Bernardo Innocenti <bernie@develer.com>
  * \author Stefano Fedrigo <aleph@develer.com>
  */