EVB-PIC24 WIZnet, EVB-PIC24 Datasheet - Page 54

• Manufacturer Part Number: EVB-PIC24
• Description: Development Boards & Kits - PIC / DSPIC W3150A+EVAL BOARD BASED ON PIC24
• Manufacturer: WIZnet

Specifications of EVB-PIC24

• Rohs: yes
• Product: Development Kits
• Interface Type: RS-232
• Data Bus Width: 16 bit
• Dimensions: 50 mm x 40 mm

Fail to Send a Ping
Reply Packet
© Copyright 2006 WIZnet Co., Inc. All rights reserved.
Call setSn_PROTO(PingReplySocket,IPPROTO_ICMP)
Specify ICMP Protocol to the PingReplySocket
pingrequest.Type = 0
pingrequest.Code = 0
pingrequest.CheckSum = 0
Calculate the check sum of pingrequest
Send a Ping Reply to the specified peer
Assign the socket to PingReplySocket
Clear the ICMP Proctocol of IP RAW
SOCKET PingReplySocket;
u_int size = len;
<Fig 3.13: SendPingReply()>
Call getSocket(SOCK_CLOSED,S)
Declare & Initialize Local variables
N
Call close(PingReplySocket)
Close the PingReplySocket
Make a PingReply Packet
Create a IP RAW Socket
PingReplySocket != -1
Call setSn_PROTO(0)
Successed to Create?
PingReplySocket > s
Successed to Send?
Find a Free Socket
SendPingReply()
Call sendto()
Call socket()
size < 1452
RETURN
Y
Y
Y
&&
Y
N
N
N
size = 1452
Create Error
Fail to Send
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