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/*********************************************************************
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*
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* TFTP Client Demo App for Microchip TCP/IP Stack
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*
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*********************************************************************
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* FileName: TFTPcDemo.c
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* Dependencies: tftpc.h
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* stacktsk.h
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* xlcd.h
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* tick.h
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* Processor: PIC18
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* Complier: MCC18 v1.00.50 or higher
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* HITECH PICC-18 V8.10PL1 or higher
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* Company: Microchip Technology, Inc.
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*
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* Software License Agreement
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*
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* The software supplied herewith by Microchip Technology Incorporated
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* (the “Company”) for its PICmicro® Microcontroller is intended and
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* supplied to you, the Company’s customer, for use solely and
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* exclusively on Microchip PICmicro Microcontroller products. The
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* software is owned by the Company and/or its supplier, and is
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* protected under applicable copyright laws. All rights are reserved.
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* Any use in violation of the foregoing restrictions may subject the
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* user to criminal sanctions under applicable laws, as well as to
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* civil liability for the breach of the terms and conditions of this
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* license.
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*
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* THIS SOFTWARE IS PROVIDED IN AN “AS IS” CONDITION. NO WARRANTIES,
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* WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT NOT LIMITED
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* TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. THE COMPANY SHALL NOT,
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* IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL OR
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* CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
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*
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* Author Date Comment
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*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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* Nilesh Rajbharti 8/7/03 Original (Rev 1.0)
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*
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*
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* This demo application demonstartes Microchip TFTP client module usage
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* See TFTPDemo(), TFTPWrite() and TFTPRead() for actual implementation.
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*
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* This application monitors RB5 switch. On first push it
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* writes 'tftpwr.bin' file to server. tftpwr.bin file is made up of
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* first 16KB of program memory.
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* On second push, it reads 'tftprd.txt' file from server.
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*
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* Server IP address is set in "Board Setup" mode using Hyperterminal.
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*
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* It displays rotating '-' to indicate command in progress.
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* 'Y' to indicate success
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* 'N' for failure
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* 'T' for timeout
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* 'E' for error.
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*
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*
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* If running this applicaton on PICDEM.net use
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* HS Oscillator
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* Debug disabled
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* Low Voltage Disabled
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* Watchdog timer disabled
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********************************************************************/
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/*
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* Following define uniquely deines this file as main
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* entry/application In whole project, there should only be one such
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* definition and application file must define AppConfig variable as
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* described below.
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*/
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#define THIS_IS_STACK_APPLICATION
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#include "stacktsk.h"
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#include "dhcp.h"
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#include "xlcd.h"
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#include "tick.h"
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#include "delay.h"
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#include "udp.h"
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#include "arp.h"
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#include "arptsk.h"
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// All TFTP command statuts display will be done on first line of LCD.
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#define TFTP_COMMAND_DISPLAY_LINE 0
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// Result will be displayed at y = 15.
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#define TFTP_COMMAND_RESULT_POSITION 15
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#define STARTUP_MSG "G1_Build_0x00"
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ROM char StartupMsg[] = STARTUP_MSG;
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#if defined(STACK_USE_DHCP) || defined(STACK_USE_IP_GLEANING)
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ROM char DHCPMsg[] = "DHCP/Gleaning...";
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#endif
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ROM char SetupMsg[] = "Board Setup...";
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// 1234567890123456
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ROM char blankLCDLine[] = " ";
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/*
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* This is used by other stack elements.
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* Main application must define this and initialize it with
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* proper values.
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*/
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APP_CONFIG AppConfig;
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BYTE myDHCPBindCount = 0;
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#if defined(STACK_USE_DHCP)
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extern BYTE DHCPBindCount;
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#else
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/*
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* If DHCP is not enabled, force DHCP update.
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*/
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BYTE DHCPBindCount = 1;
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#endif
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/*
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* Set configuration fuses for HITECH compiler.
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* For MCC18 compiler, separately linked config.asm file
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* will set the correct fuses.
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*/
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#if defined(HITECH_C18)
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__CONFIG(1, UNPROTECT & HS);
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__CONFIG(2, PWRTEN & BORDIS & WDTDIS);
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#endif
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/*
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* Private helper functions.
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* These may or may not be present in all applications.
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*/
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static void InitAppConfig(void);
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static void InitializeBoard(void);
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static void DisplayIPValue(IP_ADDR *IPVal, BOOL bToLCD);
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static void SetConfig(void);
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void main(void)
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{
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// Tick to blink SYSTEM led.
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static TICK t = 0;
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UDP_SOCKET usock1;
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NODE_INFO rnode;
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char sock_open = 0;
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char is_resolved = 0;
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/*
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* Initialize any application specific hardware.
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*/
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InitializeBoard();
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/*
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* Initialize all stack related components.
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* Following steps must be performed for all applications using
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* PICmicro TCP/IP Stack.
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*/
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TickInit();
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/*
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* Initialize Stack and application related NV variables.
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*/
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InitAppConfig();
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StackInit();
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#if defined(STACK_USE_DHCP) || defined(STACK_USE_IP_GLEANING)
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if ( AppConfig.Flags.bIsDHCPEnabled )
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{
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XLCDGoto(1, 0);
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XLCDPutROMString(DHCPMsg);
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}
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else
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{
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/*
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* Force IP address display update.
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*/
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myDHCPBindCount = 1;
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#if defined(STACK_USE_DHCP)
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DHCPDisable();
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#endif
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}
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#endif
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/*
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* Once all items are initialized, go into infinite loop and let
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* stack items execute their tasks.
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* If application needs to perform its own task, it should be
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* done at the end of while loop.
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* Note that this is a "co-operative mult-tasking" mechanism
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* where every task performs its tasks (whether all in one shot
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* or part of it) and returns so that other tasks can do their
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* job.
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* If a task needs very long time to do its job, it must broken
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* down into smaller pieces so that other tasks can have CPU time.
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*/
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// Defines the IP add. on the server machine
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rnode.IPAddr.v[0] = 192;
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rnode.IPAddr.v[1] = 168;
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rnode.IPAddr.v[2] = 1;
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rnode.IPAddr.v[3] = 20;
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/*rnode.MACAddr.v[0] = 0x00;
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rnode.MACAddr.v[1] = 0x16;
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rnode.MACAddr.v[2] = 0x76;
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rnode.MACAddr.v[3] = 0x9F;
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rnode.MACAddr.v[4] = 0xFE;
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rnode.MACAddr.v[5] = 0xDA;*/
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while(1)
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{
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/*
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* Blink SYSTEM LED every second.
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*/
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if ( TickGetDiff(TickGet(), t) >= TICK_SECOND/2 )
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{
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t = TickGet();
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LATA4 ^= 1;
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}
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/*
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* This task performs normal stack task including checking
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* for incoming packet, type of packet and calling
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* appropriate stack entity to process it.
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*/
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StackTask();
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/*
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* For DHCP information, display how many times we have renewed the IP
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* configuration since last reset.
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*/
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if ( DHCPBindCount != myDHCPBindCount )
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{
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DisplayIPValue(&AppConfig.MyIPAddr, TRUE);
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myDHCPBindCount = DHCPBindCount;
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if ( AppConfig.Flags.bIsDHCPEnabled )
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{
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XLCDGoto(1, 14);
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if ( myDHCPBindCount < 0x0a )
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XLCDPut(myDHCPBindCount + '0');
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else
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XLCDPut(myDHCPBindCount + 'A');
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}
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}
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if (DHCPIsBound())
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{
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RA3 =0;
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if (sock_open == 0)
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{
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if (ARPIsTxReady())
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{
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if (is_resolved == 0)
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{
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ARPResolve( &rnode.IPAddr);
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is_resolved = 1;
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}
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else
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{
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if (ARPIsResolved( &rnode.IPAddr, &rnode.MACAddr))
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{
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usock1=UDPOpen(2000,&rnode,3000); // socket to send UDP
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sock_open=1;
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}
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}
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}
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}
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if (UDPIsPutReady(usock1))
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{
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UDPPut( rnode.MACAddr.v[0] );
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UDPPut( rnode.MACAddr.v[1] );
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UDPPut( rnode.MACAddr.v[2] );
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UDPPut( rnode.MACAddr.v[3] );
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UDPPut( rnode.MACAddr.v[4] );
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UDPPut( rnode.MACAddr.v[5] );
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UDPPut('D');
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UDPPut('a');
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UDPPut('w');
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UDPPut(0);
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UDPFlush();
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}
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}
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}
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}
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#if defined(MCHP_C18)
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#pragma interrupt HighISR save=section(".tmpdata")
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void HighISR(void)
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#elif defined(HITECH_C18)
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#if defined(STACK_USE_SLIP)
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extern void MACISR(void);
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#endif
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void interrupt HighISR(void)
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#endif
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{
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TickUpdate();
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/*
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#if defined(STACK_USE_SLIP)
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MACISR();
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#endif
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*/
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}
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#if defined(MCHP_C18)
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#pragma code highVector=0x08
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void HighVector (void)
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{
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_asm goto HighISR _endasm
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}
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#pragma code /* return to default code section */
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#endif
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static void DisplayIPValue(IP_ADDR *IPVal, BOOL bToLCD)
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{
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char IPDigit[8];
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if ( bToLCD )
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{
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/*
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* Erase second line.
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*/
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XLCDGoto(1, 0);
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XLCDPutROMString(blankLCDLine);
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}
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/*
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* Rewrite the second line.
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*/
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XLCDGoto(1, 0);
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itoa(IPVal->v[0], IPDigit);
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if ( bToLCD )
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{
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XLCDPutString(IPDigit);
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XLCDPut('.');
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}
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itoa(IPVal->v[1], IPDigit);
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if ( bToLCD )
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{
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XLCDPutString(IPDigit);
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XLCDPut('.');
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}
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itoa(IPVal->v[2], IPDigit);
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if ( bToLCD )
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{
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XLCDPutString(IPDigit);
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XLCDPut('.');
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}
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itoa(IPVal->v[3], IPDigit);
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if ( bToLCD )
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XLCDPutString(IPDigit);
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}
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|
| 371 |
|
|
/*********************************************************************
|
| 372 |
|
|
* Function: void InitializeBoard(void)
|
| 373 |
|
|
*
|
| 374 |
|
|
* PreCondition: None
|
| 375 |
|
|
*
|
| 376 |
|
|
* Input: None
|
| 377 |
|
|
*
|
| 378 |
|
|
* Output: None
|
| 379 |
|
|
*
|
| 380 |
|
|
* Side Effects: None
|
| 381 |
|
|
*
|
| 382 |
|
|
* Overview: Initialize board specific hardware.
|
| 383 |
|
|
*
|
| 384 |
|
|
* Note: None
|
| 385 |
|
|
********************************************************************/
|
| 386 |
|
|
static void InitializeBoard(void)
|
| 387 |
|
|
{
|
| 388 |
|
|
/*
|
| 389 |
|
|
* Setup for PORTA.RA0 as analog input while rests
|
| 390 |
|
|
* as digital i/o lines.
|
| 391 |
|
|
*/
|
| 392 |
|
|
ADCON1 = 0b10001110; // RA0 as analog input, Right justified
|
| 393 |
|
|
TRISA = 0x03;
|
| 394 |
|
|
|
| 395 |
|
|
/*
|
| 396 |
|
|
* LCD is enabled using RA5.
|
| 397 |
|
|
*/
|
| 398 |
|
|
PORTA_RA5 = 0; // Disable LCD.
|
| 399 |
|
|
|
| 400 |
|
|
/*
|
| 401 |
|
|
* Turn off the LED's.
|
| 402 |
|
|
*/
|
| 403 |
|
|
LATA2 = 1;
|
| 404 |
|
|
LATA3 = 1;
|
| 405 |
|
|
|
| 406 |
|
|
/*
|
| 407 |
|
|
* External data EEPROM needs pull-ups, so enable internal
|
| 408 |
|
|
* pull-ups.
|
| 409 |
|
|
*/
|
| 410 |
|
|
INTCON2_RBPU = 0;
|
| 411 |
|
|
|
| 412 |
|
|
XLCDInit();
|
| 413 |
|
|
XLCDGoto(0, 0);
|
| 414 |
|
|
XLCDPutROMString(StartupMsg);
|
| 415 |
|
|
|
| 416 |
|
|
T0CON = 0;
|
| 417 |
|
|
INTCON_GIEH = 1;
|
| 418 |
|
|
INTCON_GIEL = 1;
|
| 419 |
|
|
|
| 420 |
|
|
}
|
| 421 |
|
|
|
| 422 |
|
|
/*********************************************************************
|
| 423 |
|
|
* Function: void InitAppConfig(void)
|
| 424 |
|
|
*
|
| 425 |
|
|
* PreCondition: MPFSInit() is already called.
|
| 426 |
|
|
*
|
| 427 |
|
|
* Input: None
|
| 428 |
|
|
*
|
| 429 |
|
|
* Output: Write/Read non-volatile config variables.
|
| 430 |
|
|
*
|
| 431 |
|
|
* Side Effects: None
|
| 432 |
|
|
*
|
| 433 |
|
|
* Overview: None
|
| 434 |
|
|
*
|
| 435 |
|
|
* Note: None
|
| 436 |
|
|
********************************************************************/
|
| 437 |
|
|
static void InitAppConfig(void)
|
| 438 |
|
|
{
|
| 439 |
|
|
/*
|
| 440 |
|
|
* Load default configuration into RAM.
|
| 441 |
|
|
*/
|
| 442 |
|
|
AppConfig.MyIPAddr.v[0] = MY_DEFAULT_IP_ADDR_BYTE1;
|
| 443 |
|
|
AppConfig.MyIPAddr.v[1] = MY_DEFAULT_IP_ADDR_BYTE2;
|
| 444 |
|
|
AppConfig.MyIPAddr.v[2] = MY_DEFAULT_IP_ADDR_BYTE3;
|
| 445 |
|
|
AppConfig.MyIPAddr.v[3] = MY_DEFAULT_IP_ADDR_BYTE4;
|
| 446 |
|
|
|
| 447 |
|
|
AppConfig.MyMask.v[0] = MY_DEFAULT_MASK_BYTE1;
|
| 448 |
|
|
AppConfig.MyMask.v[1] = MY_DEFAULT_MASK_BYTE2;
|
| 449 |
|
|
AppConfig.MyMask.v[2] = MY_DEFAULT_MASK_BYTE3;
|
| 450 |
|
|
AppConfig.MyMask.v[3] = MY_DEFAULT_MASK_BYTE4;
|
| 451 |
|
|
|
| 452 |
|
|
AppConfig.MyGateway.v[0] = MY_DEFAULT_GATE_BYTE1;
|
| 453 |
|
|
AppConfig.MyGateway.v[1] = MY_DEFAULT_GATE_BYTE2;
|
| 454 |
|
|
AppConfig.MyGateway.v[2] = MY_DEFAULT_GATE_BYTE3;
|
| 455 |
|
|
AppConfig.MyGateway.v[3] = MY_DEFAULT_GATE_BYTE4;
|
| 456 |
|
|
|
| 457 |
|
|
AppConfig.MyMACAddr.v[0] = MY_DEFAULT_MAC_BYTE1;
|
| 458 |
|
|
AppConfig.MyMACAddr.v[1] = MY_DEFAULT_MAC_BYTE2;
|
| 459 |
|
|
AppConfig.MyMACAddr.v[2] = MY_DEFAULT_MAC_BYTE3;
|
| 460 |
|
|
AppConfig.MyMACAddr.v[3] = MY_DEFAULT_MAC_BYTE4;
|
| 461 |
|
|
AppConfig.MyMACAddr.v[4] = MY_DEFAULT_MAC_BYTE5;
|
| 462 |
|
|
AppConfig.MyMACAddr.v[5] = MY_DEFAULT_MAC_BYTE6;
|
| 463 |
|
|
|
| 464 |
|
|
#if defined(STACK_USE_DHCP)
|
| 465 |
|
|
AppConfig.Flags.bIsDHCPEnabled = TRUE;
|
| 466 |
|
|
#else
|
| 467 |
|
|
AppConfig.Flags.bIsDHCPEnabled = FALSE;
|
| 468 |
|
|
#endif
|
| 469 |
|
|
}
|
| 470 |
|
|
|
| 471 |
|
|
BOOL StringToIPAddress(char *str, IP_ADDR *buffer)
|
| 472 |
|
|
{
|
| 473 |
|
|
BYTE v;
|
| 474 |
|
|
char *temp;
|
| 475 |
|
|
BYTE byteIndex;
|
| 476 |
|
|
|
| 477 |
|
|
temp = str;
|
| 478 |
|
|
byteIndex = 0;
|
| 479 |
|
|
|
| 480 |
|
|
while( v = *str )
|
| 481 |
|
|
{
|
| 482 |
|
|
if ( v == '.' )
|
| 483 |
|
|
{
|
| 484 |
|
|
*str++ = '\0';
|
| 485 |
|
|
buffer->v[byteIndex++] = atoi(temp);
|
| 486 |
|
|
temp = str;
|
| 487 |
|
|
}
|
| 488 |
|
|
else if ( v < '0' || v > '9' )
|
| 489 |
|
|
return FALSE;
|
| 490 |
|
|
|
| 491 |
|
|
str++;
|
| 492 |
|
|
}
|
| 493 |
|
|
|
| 494 |
|
|
buffer->v[byteIndex] = atoi(temp);
|
| 495 |
|
|
|
| 496 |
|
|
return (byteIndex == 3);
|
| 497 |
|
|
}
|
| 498 |
|
|
|
| 499 |
|
|
|
| 500 |
|
|
void XLCDDelay15ms(void)
|
| 501 |
|
|
{
|
| 502 |
|
|
DelayMs(15);
|
| 503 |
|
|
}
|
| 504 |
|
|
void XLCDDelay4ms(void)
|
| 505 |
|
|
{
|
| 506 |
|
|
DelayMs(4);
|
| 507 |
|
|
}
|
| 508 |
|
|
|
| 509 |
|
|
void XLCDDelay100us(void)
|
| 510 |
|
|
{
|
| 511 |
|
|
INTCON_GIEH = 0;
|
| 512 |
|
|
Delay10us(1);
|
| 513 |
|
|
INTCON_GIEH = 1;
|
| 514 |
|
|
}
|
Parent Directory
| 
Revision Log