xmodem.c File Reference

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

#include "xmodem.h"
#include <appconfig.h>
#include <string.h>
#include <drv/ser.h>
#include <algo/crc.h>
#include <cfg/debug.h>

Go to the source code of this file.

Defines
#define	XM_MAXRETRIES   15
	Max retries before giving up.
#define	XM_MAXCRCRETRIES   7
	Max retries before switching to BCC.
#define	XM_BUFSIZE   128
	128 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.

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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 1232 2008-04-09 16:31:19Z batt

Author:

Bernardo Innocenti <bernie@develer.com>

Francesco Sacchi <batt@develer.com>

Definition in file xmodem.c.