ymodem.h

xscale pxa255 bootloader 程序

#ifndef __XYMODEM_H_
#define __XYMODEM_H_

#define MODEM_MAX_RETRIES   10      //接收等待延时时间


#define MODEM_SOH  0x01       		 //数据块起始字符
#define MODEM_STX  0x02
#define MODEM_EOT  0x04
#define MODEM_ACK  0x06
#define MODEM_NAK  0x15
#define MODEM_CAN  0x18
#define MODEM_C    0x43


typedef struct receive_data_format {
	unsigned char blknum;
	char packet_Nbr;
	char packet_Nbr_cmp;
	char data[1024];
	char checksum1;
	char checksum2;
	int  rxlen;    //接收长度
} receive_packet_data ;


int ymodem_download( char *rxbuf);

#endif