AN2120: Connecting an M68HC08 Family Microcontroller to an ...

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Application Note } } break; ProcPPPSend (OutBuffer, OutBuffer [7] + 6); case SLIP: // Output through SLIP interface ProcSLIPSend ((BYTE *)ip_out, ip_out->Length); break; case ETHERNET: // Send datagram over ethernet break; default: break; /*********************************************************************** Function : IPCompare Parameters : Ip: A pointer to a IP address to compare Date : November 2000 Desc : Compares an IP address to the default IP address defined in this module ***********************************************************************/ BYTE IPCompare (BYTE *IPOne) { if (IPOne [0] != IPAddress[0]) return (BYTE)0x00; if (IPOne [1] != IPAddress[1]) return (BYTE)0x00; if (IPOne [2] != IPAddress[2]) return (BYTE)0x00; if (IPOne [3] != IPAddress[3]) return (BYTE)0x00; } return (BYTE) 0x01; /*********************************************************************** Function : IPChecksum Parameters : Data: A pointer to an array of Words Size: Size of the array Date : August 2000 Desc : Obtains the IP checksum of an array of 16-bit words of size "Size" ***********************************************************************/ DWORD IPCheckSum (BYTE* Data, WORD Size) { unsigned long Sum = 0; while (Size-->0) { Sum += ((unsigned long)((*Data
} AN2120 } Data+=2; Sum = (Sum >> 16) + (Sum & 0xFFFF); Sum += (Sum >> 16); return (WORD) ~Sum; UDP.C User Datagram Protocol Implementation /*///////////////////////////////////////////////////////////////////////////// File Name : UDP.c Author : Rene Trenado Location : Motorola Applications Lab, Baja California Date Created : December 2001 Current Revision : 0.0 Notes : This file contains the code to handle and create UDP transport packets. //////////////////////////////////////////////////////////////////////////////*/ #include "IP.h" #include "UDP.h" #include "Ppp.h" #define UDP_HEADER_LENGTH 8 Application Note Code Implementation static WORD UDPLocalPort = 1080; // Default UDP port (can be set to anything) static void UDPDefaultCallBack (BYTE *data, BYTE size, DWORD RemoteIP, WORD Port); static UDPCALLBACK UDPCallback = UDPDefaultCallBack; UDPDatagram *udp_in; // Pointer to incoming UDP packet UDPDatagram *udp_out; // Pointer for output UDP packet /*********************************************************************** Function : UDPSetCallbackProc Parameters : Proc: A pointer to a function to callback each time a UDP/IP packet is received from the Internet Date : December 2000 Desc : Sets the callback function to call each time a UDP packet is received over the physical interface MOTOROLA 81
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© Motorola, Inc., 2001 Semiconduct
Page 3 and 4:
Internet Primer AN2120 M68HC08 FAMI
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AN2120 A1 A2 A3 NETWORK A B1 B2 B3
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AN2120 OSI REFERENCE MODEL INTERNET
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AN2120 Application Note Internet Pr
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UDP Protocol AN2120 Application Not
Page 13 and 14:
AN2120 Application Note Internet Co
Page 15 and 16:
Dialing an Internet Service Provide
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Start Flag 0x7F PPP Framing AN2120
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AN2120 Application Note PPP Framing
Page 21 and 22:
AN2120 Field Type A description of
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Internet Protocol Control Protocol
Page 25 and 26:
AN2120 (1) First LCP packet sent by
Page 27 and 28:
AN2120 Application Note Serial Line
Page 29 and 30: Software Operation AN2120 Applicati
Page 31 and 32: AN2120 Table 4. MC68HC908GP32 Inter
Page 33 and 34: Overview of the Modem Interface AN2
Page 35 and 36: AN2120 Application Note Operation o
Page 37 and 38: AN2120 FIFO INITIALIZED FIFO AT RUN
Page 39 and 40: PPP Module AN2120 InBuffer [0] InBu
Page 41 and 42: Listing 4. Body of PPPEntry Functio
Page 43 and 44: AN2120 Application Note Internet Pr
Page 45 and 46: AN2120 Application Note Summary Int
Page 47 and 48: Code Implementation AN2120 Applicat
Page 49 and 50: CommEventProc (ProcPPPReceive); //
Page 51 and 52: AN2120 Application Note Code Implem
Page 53 and 54: ***********************************
Page 55 and 56: Parameters : Date : July 2000 Desc
Page 57 and 58: } AN2120 } else { } Application Not
Page 59 and 60: } AN2120 } case ICMP: IcmpHandler (
Page 61 and 62: ***********************************
Page 63 and 64: } AN2120 } else { } PPPStatus &= ~I
Page 65 and 66: AN2120 switch (InBuffer [4] ) { App
Page 67 and 68: } AN2120 //////////////////////////
Page 69 and 70: } AN2120 } break; case REJ: break;
Page 71 and 72: This will force the server to reply
Page 73 and 74: #include "CommDrv.h" #include "Mode
Page 75 and 76: ***********************************
Page 77 and 78: } AN2120 } return False; /*********
Page 79: ***********************************
Page 83 and 84: } AN2120 Checksum = IPCheckSum (&ud
Page 85 and 86: */ #include "IP.h" #include "ICMP.h
Page 87 and 88: PLL.C Code of InitPLL Function /*//
Page 89 and 90: BUSFREQ: EQU 2 _1msDelay: PSHA ;2 c
Page 91 and 92: Current Revision : 0.0 Notes : Defi
Page 93 and 94: #define ESC_ESC 0xDD //335 octal ex
Page 95 and 96: void IPBindAdapter (INTERFACE Inter
Page 97 and 98: Delay.h Header Definitions for Dela
Page 99 and 100: WORD CommPort (void) { return Port;
Page 101 and 102: CommDrv.H Serial Communications Int
Page 103 and 104: AN2120 Application Note Code Implem
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