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

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Application Note Delay.C Source Code of Variable Delay() Function /****************************************************************************** File Name : Delay.c Author : Rene Trenado Location : Motorola Applications Lab, Baja California Date Created : July 2000 Current Revision : 0.0 Notes : This file contains the code for a variable Delay function *******************************************************************************/ #include "delay.h" BYTE delayCounter; /*********************************************************************** Function : Delay Parameters : A Byte containing the number of times __Delay will be called Date : July 2000 Desc : This function blocks the CPU in multiples of _Delay times ***********************************************************************/ void Delay (register BYTE times) { _Delay(); } /*********************************************************************** Assembly Function : __1msDelay Parameters : None Date : July 2000 Desc : This function blocks the CPU in multiples of 1.3mSecs delayCount specifies the time base __1msDelay = delayCounter x 1.3 mSec ***********************************************************************/ #asm xref.b _delayCounter xdef __Delay AN2120 88 MOTOROLA
BUSFREQ: EQU 2 _1msDelay: PSHA ;2 cycles LDA #BUSFREQ ;2 DLLoop: DBNZA DLSub ;3 BRA DLSub: DLDone ;3 MOV #$FF,_delayCounter ;4 Here: DBNZ _delayCounter,Here ;5 BRA DLLoop ;3 DLDone: PULA ;2 RTS ;4 /*********************************************************************** Function : _Delay Parameters : A Byte containing the number of times a base delay will be called Date : July 2000 Desc : This function blocks the CPU in multiples (Acc value) of delay times ***********************************************************************/ __Delay: #endasm CommDrv.H Header File for SCI Driver AN2120 JSR _1msDelay DBNZA __Delay RTS /*///////////////////////////////////////////////////////////////////////////// File Name : CommDrv.h Author : Rene Trenado Location : Motorola Applications Lab, Baja California Date Created : July 2000 Current Revision : 0.0 Application Note Code Implementation MOTOROLA 89
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© Motorola, Inc., 2001 Semiconduct
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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
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AN2120 Application Note Internet Co
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Dialing an Internet Service Provide
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Start Flag 0x7F PPP Framing AN2120
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AN2120 Application Note PPP Framing
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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
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AN2120 Application Note Serial Line
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Software Operation AN2120 Applicati
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AN2120 Table 4. MC68HC908GP32 Inter
Page 33 and 34:
Overview of the Modem Interface AN2
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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 and 80: ***********************************
Page 81 and 82: } AN2120 } Data+=2; Sum = (Sum >> 1
Page 83 and 84: } AN2120 Checksum = IPCheckSum (&ud
Page 85 and 86: */ #include "IP.h" #include "ICMP.h
Page 87: PLL.C Code of InitPLL Function /*//
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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