xmodem.c File Reference

X-Modem serial transmission protocol (implementation). More...

#include "xmodem.h"
#include "cfg/cfg_xmodem.h"
#include <cfg/debug.h>
#include <algo/crc.h>
#include <string.h>

Go to the source code of this file.

Defines
#define	XM_BUFSIZE   1024
	1024 bytes of block buffer
Protocol control codes
#define	XM_SOH   0x01
	Start Of Header (128-byte block).
#define	XM_STX   0x02
	Start Of Header (1024-byte block).
#define	XM_EOT   0x04
	End Of Transmission.
#define	XM_ACK   0x06
	Acknowledge block.
#define	XM_NAK   0x15
	Negative Acknowledge.
#define	XM_C   0x43
	Request CRC-16 transmission.
#define	XM_CAN   0x18
	CANcel transmission.
Functions
bool	xmodem_recv (KFile *ch, KFile *fd)
	Receive a file using the XModem protocol.
bool	xmodem_send (KFile *ch, KFile *fd)
	Transmit some data using the XModem protocol.

---

Detailed Description

X-Modem serial transmission protocol (implementation).

Supports the CRC-16 and 1K-blocks variants of the standard.

See also:

ymodem.txt for the protocol description.

Version:

Id

xmodem.c 2951 2009-09-16 11:00:45Z lottaviano

Author:

Bernie Innocenti <bernie@codewiz.org>

Francesco Sacchi <batt@develer.com>

Definition in file xmodem.c.

---

Function Documentation

bool xmodem_recv	(	KFile *	ch,
		KFile *	fd
	)

Receive a file using the XModem protocol.

Parameters:

	ch	Channel to use for transfer
	fd	Destination file

Note:

This function allocates a large amount of stack (

See also:

XM_BUFSIZE).

Definition at line 86 of file xmodem.c.

bool xmodem_send	(	KFile *	ch,
		KFile *	fd
	)

Transmit some data using the XModem protocol.

Parameters:

	ch	Channel to use for transfer
	fd	Source file

Note:

This function allocates a large amount of stack for the XModem transfer buffer (

See also:

XM_BUFSIZE).

Definition at line 306 of file xmodem.c.