xmodem.h

自己写的一个基于kb9202开发板的bootloader

#ifndef __XMODEM_H
#define __XMODEM_H

#define	XM_SOH	((unsigned char)0x01)
#define XM_EOT	((unsigned char)0x04)
#define XM_ACK	((unsigned char)0x06)
#define XM_NAK	((unsigned char)0x15)
#define XM_CAN	((unsigned char)0x18)

typedef struct x_packet{
	unsigned char soh;
	unsigned char blk;
	unsigned char blk_comp;
	unsigned char cksum;
	unsigned char data[128];
} x_packet;

enum{ XM_WAIT=0,XM_RECV,XM_START };

extern int x_receive(unsigned*);
extern void int_tc(void);

#endif