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/*********************************************************************
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*
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* Example Web Server Application using Microchip TCP/IP Stack
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*
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*********************************************************************
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* FileName: WebSrvr.c
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* Dependencies: string.H
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* usart.h
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* StackTsk.h
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* Tick.h
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* http.h
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* MPFS.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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*
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* HiTech PICC18 Compiler Options excluding device selection:
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* -FAKELOCAL -G -O -Zg -E -C
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*
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*
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*
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*
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* Author Date Comment
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*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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* Nilesh Rajbharti 4/19/01 Original (Rev. 1.0)
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* Nilesh Rajbharti 2/09/02 Cleanup
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* Nilesh Rajbharti 5/22/02 Rev 2.0 (See version.log for detail)
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* Nilesh Rajbharti 7/9/02 Rev 2.1 (See version.log for detail)
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* Nilesh Rajbharti 4/7/03 Rev 2.11.01 (See version log for detail)
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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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#define BAUD_RATE (19200) // bps
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#define USART_USE_BRGH_LOW
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#if defined(USART_USE_BRGH_LOW)
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#define SPBRG_VAL ( ((CLOCK_FREQ/BAUD_RATE)/64) - 1)
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#else
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#define SPBRG_VAL ( ((CLOCK_FREQ/BAUD_RATE)/16) - 1)
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#endif
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#if SPBRG_VAL > 255
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#error "Calculated SPBRG value is out of range for currnet CLOCK_FREQ."
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#endif
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#include <string.h>
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/*
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* These headers must be included for required defs.
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*/
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#include "stacktsk.h"
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#include "tick.h"
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#if defined(STACK_USE_DHCP)
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#include "dhcp.h"
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#endif
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#if defined(STACK_USE_HTTP_SERVER)
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#include "http.h"
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#endif
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#include "mpfs.h"
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#if defined(STACK_USE_FTP_SERVER) && defined(MPFS_USE_EEPROM)
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#include "ftp.h"
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#endif
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#include "xlcd.h"
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#if defined(MPFS_USE_EEPROM)
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#include "xeeprom.h"
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#endif
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// For debug only.
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#include "tcp.h"
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#include "icmp.h"
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#include "delay.h"
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#define STARTUP_MSG "MpStack 2.20.04"
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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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/*
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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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#if defined(MCHP_C18) && defined(__18F8720)
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#define TXSTAbits TXSTA1bits
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#define TXREG TXREG1
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#define TXSTA TXSTA1
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#define RCSTA RCSTA1
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#define SPBRG SPBRG1
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#define RCREG RCREG1
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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 ProcessIO(void);
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void NotifyRemoteUser(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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#if defined(MPFS_USE_EEPROM)
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static BOOL DownloadMPFS(void);
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static void SaveAppConfig(void);
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#endif
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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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#if defined(STACK_USE_SLIP)
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MACISR();
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#endif
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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 USARTPut(BYTE c)
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{
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while( !TXSTA_TRMT);
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TXREG = c;
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}
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static void USARTPutString(BYTE *s)
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{
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BYTE c;
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while( (c = *s++) )
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USARTPut(c);
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}
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#define USARTIsGetReady() (PIR1_RCIF)
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#define USARTGet() (RCREG)
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/*
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* Main entry point.
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*/
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void main(void)
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{
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static TICK t = 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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* 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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MPFSInit();
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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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/*
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* Depending on whether internal program memor is used or external
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* EEPROM is used, keep/remove these block.
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*/
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/*
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* This implementation, initiates Board setup process if RB5
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* is detected low on startup.
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*/
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if ( PORTB_RB5 == 0 )
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{
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XLCDGoto(1, 0);
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XLCDPutROMString(SetupMsg);
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SetConfig();
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}
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StackInit();
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#if defined(STACK_USE_HTTP_SERVER)
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HTTPInit();
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#endif
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#if defined(STACK_USE_FTP_SERVER) && defined(MPFS_USE_EEPROM)
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FTPInit();
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#endif
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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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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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#if defined(STACK_USE_HTTP_SERVER)
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/*
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* This is a TCP application. It listens to TCP port 80
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* with one or more sockets and responds to remote requests.
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*/
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HTTPServer();
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#endif
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#if defined(STACK_USE_FTP_SERVER) && defined(MPFS_USE_EEPROM)
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FTPServer();
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#endif
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346 |
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/*
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* In future, as new TCP/IP applications are written, it
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* will be added here as new tasks.
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*/
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351 |
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/*
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353 |
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* Add your application speicifc tasks here.
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*/
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ProcessIO();
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356 |
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/*
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358 |
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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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361 |
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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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365 |
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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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}
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}
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// 1234567890123456
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ROM char blankLCDLine[] = " ";
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381 |
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|
382 |
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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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385 |
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|
386 |
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if ( bToLCD )
|
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{
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388 |
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/*
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389 |
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* Erase second line.
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390 |
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|
*/
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391 |
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XLCDGoto(1, 0);
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XLCDPutROMString(blankLCDLine);
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393 |
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|
394 |
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}
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395 |
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|
396 |
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|
/*
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397 |
|
|
* Rewrite the second line.
|
398 |
|
|
*/
|
399 |
|
|
XLCDGoto(1, 0);
|
400 |
|
|
|
401 |
|
|
itoa(IPVal->v[0], IPDigit);
|
402 |
|
|
if ( bToLCD )
|
403 |
|
|
{
|
404 |
|
|
XLCDPutString(IPDigit);
|
405 |
|
|
XLCDPut('.');
|
406 |
|
|
}
|
407 |
|
|
else
|
408 |
|
|
{
|
409 |
|
|
USARTPutString((BYTE*)IPDigit);
|
410 |
|
|
USARTPut('.');
|
411 |
|
|
}
|
412 |
|
|
|
413 |
|
|
itoa(IPVal->v[1], IPDigit);
|
414 |
|
|
if ( bToLCD )
|
415 |
|
|
{
|
416 |
|
|
XLCDPutString(IPDigit);
|
417 |
|
|
XLCDPut('.');
|
418 |
|
|
}
|
419 |
|
|
else
|
420 |
|
|
{
|
421 |
|
|
USARTPutString((BYTE*)IPDigit);
|
422 |
|
|
USARTPut('.');
|
423 |
|
|
}
|
424 |
|
|
|
425 |
|
|
itoa(IPVal->v[2], IPDigit);
|
426 |
|
|
if ( bToLCD )
|
427 |
|
|
{
|
428 |
|
|
XLCDPutString(IPDigit);
|
429 |
|
|
XLCDPut('.');
|
430 |
|
|
}
|
431 |
|
|
else
|
432 |
|
|
{
|
433 |
|
|
USARTPutString((BYTE*)IPDigit);
|
434 |
|
|
USARTPut('.');
|
435 |
|
|
}
|
436 |
|
|
|
437 |
|
|
itoa(IPVal->v[3], IPDigit);
|
438 |
|
|
if ( bToLCD )
|
439 |
|
|
XLCDPutString(IPDigit);
|
440 |
|
|
else
|
441 |
|
|
USARTPutString((BYTE*)IPDigit);
|
442 |
|
|
}
|
443 |
|
|
|
444 |
|
|
|
445 |
|
|
|
446 |
|
|
static char AN0String[8];
|
447 |
|
|
static char AN1String[8];
|
448 |
|
|
|
449 |
|
|
|
450 |
|
|
static void ProcessIO(void)
|
451 |
|
|
{
|
452 |
|
|
WORD_VAL ADCResult;
|
453 |
|
|
|
454 |
|
|
/*
|
455 |
|
|
* Select AN0 channel, Fosc/32 clock
|
456 |
|
|
*/
|
457 |
|
|
ADCON0 = 0b10000001;
|
458 |
|
|
|
459 |
|
|
/*
|
460 |
|
|
* Wait for acquisition time.
|
461 |
|
|
* Here, rather than waiting for exact time, a simple wait is
|
462 |
|
|
* used. Real applications requiring high accuracy should
|
463 |
|
|
* calculate exact acquisition time and wait accordingly.
|
464 |
|
|
*/
|
465 |
|
|
ADCResult.v[0] = 100;
|
466 |
|
|
while( ADCResult.v[0]-- );
|
467 |
|
|
|
468 |
|
|
/*
|
469 |
|
|
* First convert AN0 channel.
|
470 |
|
|
* AN0 is already setup as an analog input.
|
471 |
|
|
*/
|
472 |
|
|
ADCON0_GO = 1;
|
473 |
|
|
|
474 |
|
|
/*
|
475 |
|
|
* Wait until conversion is done.
|
476 |
|
|
*/
|
477 |
|
|
while( ADCON0_GO );
|
478 |
|
|
|
479 |
|
|
/*
|
480 |
|
|
* Save the result.
|
481 |
|
|
*/
|
482 |
|
|
ADCResult.v[0] = ADRESL;
|
483 |
|
|
ADCResult.v[1] = ADRESH;
|
484 |
|
|
|
485 |
|
|
/*
|
486 |
|
|
* Convert 10-bit value into ASCII String.
|
487 |
|
|
*/
|
488 |
|
|
itoa(ADCResult.Val, AN0String);
|
489 |
|
|
|
490 |
|
|
/*
|
491 |
|
|
* Now, convert AN1 channel.
|
492 |
|
|
*
|
493 |
|
|
* In PICDEM.net board, RA2 thru RA7 should be digital or else
|
494 |
|
|
* LED, LCD and NIC would not operate correctly.
|
495 |
|
|
* Since there is no mode where only AN0 and AN1 be analog inputs
|
496 |
|
|
* while rests are digial pins, we will temperoraily switch
|
497 |
|
|
* select a mode where RA2 becomes analog input while we do
|
498 |
|
|
* conversion of RA1. Once conversion is done, we will convert
|
499 |
|
|
* RA2 back to digital pin.
|
500 |
|
|
*/
|
501 |
|
|
ADCON1 = 0b10000100;
|
502 |
|
|
|
503 |
|
|
/*
|
504 |
|
|
* Select AN1 channel.
|
505 |
|
|
*/
|
506 |
|
|
ADCON0 = 0b10001001;
|
507 |
|
|
|
508 |
|
|
/*
|
509 |
|
|
* Wait for acquisition time.
|
510 |
|
|
* Here, rather than waiting for exact time, a simple wait is
|
511 |
|
|
* used. Real applications requiring high accuracy should
|
512 |
|
|
* calculate exact acquisition time and wait accordingly.
|
513 |
|
|
*/
|
514 |
|
|
ADCResult.v[0] = 100;
|
515 |
|
|
while( ADCResult.v[0]-- );
|
516 |
|
|
|
517 |
|
|
/*
|
518 |
|
|
* Start the conversion.
|
519 |
|
|
*/
|
520 |
|
|
ADCON0_GO = 1;
|
521 |
|
|
|
522 |
|
|
/*
|
523 |
|
|
* Wait until it is done.
|
524 |
|
|
*/
|
525 |
|
|
while( ADCON0_GO );
|
526 |
|
|
|
527 |
|
|
/*
|
528 |
|
|
* Save the result.
|
529 |
|
|
*/
|
530 |
|
|
ADCResult.v[0] = ADRESL;
|
531 |
|
|
ADCResult.v[1] = ADRESH;
|
532 |
|
|
|
533 |
|
|
/*
|
534 |
|
|
* Convert 10-bit value into ASCII String.
|
535 |
|
|
*/
|
536 |
|
|
itoa(ADCResult.Val, AN1String);
|
537 |
|
|
|
538 |
|
|
/*
|
539 |
|
|
* Reset RA2 pin back to digital output.
|
540 |
|
|
*/
|
541 |
|
|
ADCON1 = 0b10001110; // RA0 as analog input.
|
542 |
|
|
|
543 |
|
|
}
|
544 |
|
|
|
545 |
|
|
/*
|
546 |
|
|
* CGI Command Codes.
|
547 |
|
|
*/
|
548 |
|
|
#define CGI_CMD_DIGOUT (0)
|
549 |
|
|
#define CGI_CMD_LCDOUT (1)
|
550 |
|
|
|
551 |
|
|
/*
|
552 |
|
|
* CGI Variable codes. - There could be 0-255 variables.
|
553 |
|
|
*/
|
554 |
|
|
#define VAR_LED_D5 (0)
|
555 |
|
|
#define VAR_LED_D6 (1)
|
556 |
|
|
#define VAR_ANAIN_AN0 (2)
|
557 |
|
|
#define VAR_ANAIN_AN1 (3)
|
558 |
|
|
#define VAR_DIGIN_RB5 (4)
|
559 |
|
|
#define VAR_STROUT_LCD (5)
|
560 |
|
|
|
561 |
|
|
/*********************************************************************
|
562 |
|
|
* Function: void HTTPExecCmd(BYTE** argv, BYTE argc)
|
563 |
|
|
*
|
564 |
|
|
* PreCondition: None
|
565 |
|
|
*
|
566 |
|
|
* Input: argv - List of arguments
|
567 |
|
|
* argc - Argument count.
|
568 |
|
|
*
|
569 |
|
|
* Output: None
|
570 |
|
|
*
|
571 |
|
|
* Side Effects: None
|
572 |
|
|
*
|
573 |
|
|
* Overview: This function is a "callback" from HTTPServer
|
574 |
|
|
* task. Whenever a remote node performs
|
575 |
|
|
* interactive task on page that was served,
|
576 |
|
|
* HTTPServer calls this functions with action
|
577 |
|
|
* arguments info.
|
578 |
|
|
* Main application should interpret this argument
|
579 |
|
|
* and act accordingly.
|
580 |
|
|
*
|
581 |
|
|
* Following is the format of argv:
|
582 |
|
|
* If HTTP action was : thank.htm?name=Joe&age=25
|
583 |
|
|
* argv[0] => thank.htm
|
584 |
|
|
* argv[1] => name
|
585 |
|
|
* argv[2] => Joe
|
586 |
|
|
* argv[3] => age
|
587 |
|
|
* argv[4] => 25
|
588 |
|
|
*
|
589 |
|
|
* Use argv[0] as a command identifier and rests
|
590 |
|
|
* of the items as command arguments.
|
591 |
|
|
*
|
592 |
|
|
* Note: THIS IS AN EXAMPLE CALLBACK.
|
593 |
|
|
********************************************************************/
|
594 |
|
|
#if defined(STACK_USE_HTTP_SERVER)
|
595 |
|
|
|
596 |
|
|
ROM char COMMANDS_OK_PAGE[] = "COMMANDS.CGI";
|
597 |
|
|
|
598 |
|
|
// Copy string with NULL termination.
|
599 |
|
|
#define COMMANDS_OK_PAGE_LEN (sizeof(COMMANDS_OK_PAGE))
|
600 |
|
|
|
601 |
|
|
ROM char CMD_UNKNOWN_PAGE[] = "INDEX.HTM";
|
602 |
|
|
|
603 |
|
|
// Copy string with NULL termination.
|
604 |
|
|
#define CMD_UNKNOWN_PAGE_LEN (sizeof(CMD_UNKNOWN_PAGE))
|
605 |
|
|
|
606 |
|
|
void HTTPExecCmd(BYTE** argv, BYTE argc)
|
607 |
|
|
{
|
608 |
|
|
BYTE command;
|
609 |
|
|
BYTE var;
|
610 |
|
|
|
611 |
|
|
/*
|
612 |
|
|
* Design your pages such that they contain command code
|
613 |
|
|
* as a one character numerical value.
|
614 |
|
|
* Being a one character numerical value greatly simplifies
|
615 |
|
|
* the job.
|
616 |
|
|
*/
|
617 |
|
|
command = argv[0][0] - '0';
|
618 |
|
|
|
619 |
|
|
/*
|
620 |
|
|
* Find out the cgi file name and interpret parameters
|
621 |
|
|
* accordingly
|
622 |
|
|
*/
|
623 |
|
|
switch(command)
|
624 |
|
|
{
|
625 |
|
|
case CGI_CMD_DIGOUT:
|
626 |
|
|
/*
|
627 |
|
|
* This DIGOUTS.CGI. Any arguments with this file
|
628 |
|
|
* must be about controlling digital outputs.
|
629 |
|
|
*/
|
630 |
|
|
|
631 |
|
|
/*
|
632 |
|
|
* Identify the parameters.
|
633 |
|
|
* Compare it in upper case format.
|
634 |
|
|
*/
|
635 |
|
|
var = argv[1][0] - '0';
|
636 |
|
|
|
637 |
|
|
switch(var)
|
638 |
|
|
{
|
639 |
|
|
case VAR_LED_D5:
|
640 |
|
|
/*
|
641 |
|
|
* This is "D5".
|
642 |
|
|
* Toggle D5.
|
643 |
|
|
*/
|
644 |
|
|
LATA3 ^= 1;
|
645 |
|
|
break;
|
646 |
|
|
|
647 |
|
|
case VAR_LED_D6:
|
648 |
|
|
/*
|
649 |
|
|
* This is "D6".
|
650 |
|
|
* Toggle it.
|
651 |
|
|
*/
|
652 |
|
|
LATA2 ^= 1;
|
653 |
|
|
break;
|
654 |
|
|
}
|
655 |
|
|
|
656 |
|
|
memcpypgm2ram((void*)argv[0],
|
657 |
|
|
(ROM void*)COMMANDS_OK_PAGE, COMMANDS_OK_PAGE_LEN);
|
658 |
|
|
break;
|
659 |
|
|
|
660 |
|
|
case CGI_CMD_LCDOUT:
|
661 |
|
|
/*
|
662 |
|
|
* Note implemented.
|
663 |
|
|
*/
|
664 |
|
|
break;
|
665 |
|
|
|
666 |
|
|
default:
|
667 |
|
|
memcpypgm2ram((void*)argv[0],
|
668 |
|
|
(ROM void*)CMD_UNKNOWN_PAGE, CMD_UNKNOWN_PAGE_LEN);
|
669 |
|
|
break;
|
670 |
|
|
}
|
671 |
|
|
|
672 |
|
|
}
|
673 |
|
|
#endif
|
674 |
|
|
|
675 |
|
|
|
676 |
|
|
/*********************************************************************
|
677 |
|
|
* Function: WORD HTTPGetVar(BYTE var, WORD ref, BYTE* val)
|
678 |
|
|
*
|
679 |
|
|
* PreCondition: None
|
680 |
|
|
*
|
681 |
|
|
* Input: var - Variable Identifier
|
682 |
|
|
* ref - Current callback reference with
|
683 |
|
|
* respect to 'var' variable.
|
684 |
|
|
* val - Buffer for value storage.
|
685 |
|
|
*
|
686 |
|
|
* Output: Variable reference as required by application.
|
687 |
|
|
*
|
688 |
|
|
* Side Effects: None
|
689 |
|
|
*
|
690 |
|
|
* Overview: This is a callback function from HTTPServer() to
|
691 |
|
|
* main application.
|
692 |
|
|
* Whenever a variable substitution is required
|
693 |
|
|
* on any html pages, HTTPServer calls this function
|
694 |
|
|
* 8-bit variable identifier, variable reference,
|
695 |
|
|
* which indicates whether this is a first call or
|
696 |
|
|
* not. Application should return one character
|
697 |
|
|
* at a time as a variable value.
|
698 |
|
|
*
|
699 |
|
|
* Note: Since this function only allows one character
|
700 |
|
|
* to be returned at a time as part of variable
|
701 |
|
|
* value, HTTPServer() calls this function
|
702 |
|
|
* multiple times until main application indicates
|
703 |
|
|
* that there is no more value left for this
|
704 |
|
|
* variable.
|
705 |
|
|
* On begining, HTTPGetVar() is called with
|
706 |
|
|
* ref = HTTP_START_OF_VAR to indicate that
|
707 |
|
|
* this is a first call. Application should
|
708 |
|
|
* use this reference to start the variable value
|
709 |
|
|
* extraction and return updated reference. If
|
710 |
|
|
* there is no more values left for this variable
|
711 |
|
|
* application should send HTTP_END_OF_VAR. If
|
712 |
|
|
* there are any bytes to send, application should
|
713 |
|
|
* return other than HTTP_START_OF_VAR and
|
714 |
|
|
* HTTP_END_OF_VAR reference.
|
715 |
|
|
*
|
716 |
|
|
* THIS IS AN EXAMPLE CALLBACK.
|
717 |
|
|
* MODIFY THIS AS PER YOUR REQUIREMENTS.
|
718 |
|
|
********************************************************************/
|
719 |
|
|
#if defined(STACK_USE_HTTP_SERVER)
|
720 |
|
|
WORD HTTPGetVar(BYTE var, WORD ref, BYTE* val)
|
721 |
|
|
{
|
722 |
|
|
/*
|
723 |
|
|
* First of all identify variable.
|
724 |
|
|
*/
|
725 |
|
|
switch(var)
|
726 |
|
|
{
|
727 |
|
|
case VAR_LED_D5:
|
728 |
|
|
if ( LATA3 )
|
729 |
|
|
*val = '0';
|
730 |
|
|
else
|
731 |
|
|
*val = '1';
|
732 |
|
|
break;
|
733 |
|
|
|
734 |
|
|
case VAR_LED_D6:
|
735 |
|
|
if ( LATA2 )
|
736 |
|
|
*val = '0';
|
737 |
|
|
else
|
738 |
|
|
*val = '1';
|
739 |
|
|
break;
|
740 |
|
|
|
741 |
|
|
case VAR_ANAIN_AN0:
|
742 |
|
|
if ( ref == HTTP_START_OF_VAR )
|
743 |
|
|
{
|
744 |
|
|
ref = (BYTE)0;
|
745 |
|
|
}
|
746 |
|
|
*val = AN0String[(BYTE)ref];
|
747 |
|
|
if ( AN0String[(BYTE)ref] == '\0' )
|
748 |
|
|
return HTTP_END_OF_VAR;
|
749 |
|
|
|
750 |
|
|
(BYTE)ref++;
|
751 |
|
|
return ref;
|
752 |
|
|
|
753 |
|
|
case VAR_ANAIN_AN1:
|
754 |
|
|
if ( ref == HTTP_START_OF_VAR )
|
755 |
|
|
{
|
756 |
|
|
ref = (BYTE)0;
|
757 |
|
|
}
|
758 |
|
|
*val = AN1String[(BYTE)ref];
|
759 |
|
|
if ( AN1String[(BYTE)ref] == '\0' )
|
760 |
|
|
return HTTP_END_OF_VAR;
|
761 |
|
|
|
762 |
|
|
(BYTE)ref++;
|
763 |
|
|
return ref;
|
764 |
|
|
|
765 |
|
|
case VAR_DIGIN_RB5:
|
766 |
|
|
if ( PORTB_RB5 )
|
767 |
|
|
*val = '1';
|
768 |
|
|
else
|
769 |
|
|
*val = '0';
|
770 |
|
|
break;
|
771 |
|
|
}
|
772 |
|
|
|
773 |
|
|
return HTTP_END_OF_VAR;
|
774 |
|
|
}
|
775 |
|
|
#endif
|
776 |
|
|
|
777 |
|
|
|
778 |
|
|
#if defined(STACK_USE_FTP_SERVER) && defined(MPFS_USE_EEPROM)
|
779 |
|
|
ROM char FTP_USER_NAME[] = "ftp";
|
780 |
|
|
#undef FTP_USER_NAME_LEN
|
781 |
|
|
#define FTP_USER_NAME_LEN (sizeof(FTP_USER_NAME)-1)
|
782 |
|
|
|
783 |
|
|
ROM char FTP_USER_PASS[] = "microchip";
|
784 |
|
|
#define FTP_USER_PASS_LEN (sizeof(FTP_USER_PASS)-1)
|
785 |
|
|
|
786 |
|
|
BOOL FTPVerify(char *login, char *password)
|
787 |
|
|
{
|
788 |
|
|
if ( !memcmppgm2ram(login, (ROM void*)FTP_USER_NAME, FTP_USER_NAME_LEN) )
|
789 |
|
|
{
|
790 |
|
|
if ( !memcmppgm2ram(password, (ROM void*)FTP_USER_PASS, FTP_USER_PASS_LEN) )
|
791 |
|
|
return TRUE;
|
792 |
|
|
}
|
793 |
|
|
return FALSE;
|
794 |
|
|
}
|
795 |
|
|
#endif
|
796 |
|
|
|
797 |
|
|
|
798 |
|
|
|
799 |
|
|
|
800 |
|
|
/*********************************************************************
|
801 |
|
|
* Function: void InitializeBoard(void)
|
802 |
|
|
*
|
803 |
|
|
* PreCondition: None
|
804 |
|
|
*
|
805 |
|
|
* Input: None
|
806 |
|
|
*
|
807 |
|
|
* Output: None
|
808 |
|
|
*
|
809 |
|
|
* Side Effects: None
|
810 |
|
|
*
|
811 |
|
|
* Overview: Initialize board specific hardware.
|
812 |
|
|
*
|
813 |
|
|
* Note: None
|
814 |
|
|
********************************************************************/
|
815 |
|
|
static void InitializeBoard(void)
|
816 |
|
|
{
|
817 |
|
|
/*
|
818 |
|
|
* Setup for PORTA.RA0 as analog input while rests
|
819 |
|
|
* as digital i/o lines.
|
820 |
|
|
*/
|
821 |
|
|
ADCON1 = 0b10001110; // RA0 as analog input, Right justified
|
822 |
|
|
TRISA = 0x03;
|
823 |
|
|
|
824 |
|
|
/*
|
825 |
|
|
* LCD is enabled using RA5.
|
826 |
|
|
*/
|
827 |
|
|
PORTA_RA5 = 0; // Disable LCD.
|
828 |
|
|
|
829 |
|
|
/*
|
830 |
|
|
* Turn off the LED's.
|
831 |
|
|
*/
|
832 |
|
|
LATA2 = 1;
|
833 |
|
|
LATA3 = 1;
|
834 |
|
|
|
835 |
|
|
/*
|
836 |
|
|
* External data EEPROM needs pull-ups, so enable internal
|
837 |
|
|
* pull-ups.
|
838 |
|
|
*/
|
839 |
|
|
INTCON2_RBPU = 0;
|
840 |
|
|
|
841 |
|
|
XLCDInit();
|
842 |
|
|
XLCDGoto(0, 0);
|
843 |
|
|
XLCDPutROMString(StartupMsg);
|
844 |
|
|
|
845 |
|
|
|
846 |
|
|
TXSTA = 0b00100000; // Low BRG speed
|
847 |
|
|
RCSTA = 0b10010000;
|
848 |
|
|
SPBRG = SPBRG_VAL;
|
849 |
|
|
|
850 |
|
|
T0CON = 0;
|
851 |
|
|
INTCON_GIEH = 1;
|
852 |
|
|
INTCON_GIEL = 1;
|
853 |
|
|
|
854 |
|
|
}
|
855 |
|
|
|
856 |
|
|
/*********************************************************************
|
857 |
|
|
* Function: void InitAppConfig(void)
|
858 |
|
|
*
|
859 |
|
|
* PreCondition: MPFSInit() is already called.
|
860 |
|
|
*
|
861 |
|
|
* Input: None
|
862 |
|
|
*
|
863 |
|
|
* Output: Write/Read non-volatile config variables.
|
864 |
|
|
*
|
865 |
|
|
* Side Effects: None
|
866 |
|
|
*
|
867 |
|
|
* Overview: None
|
868 |
|
|
*
|
869 |
|
|
* Note: None
|
870 |
|
|
********************************************************************/
|
871 |
|
|
static void InitAppConfig(void)
|
872 |
|
|
{
|
873 |
|
|
#if defined(MPFS_USE_EEPROM)
|
874 |
|
|
BYTE c;
|
875 |
|
|
BYTE *p;
|
876 |
|
|
#endif
|
877 |
|
|
|
878 |
|
|
/*
|
879 |
|
|
* Load default configuration into RAM.
|
880 |
|
|
*/
|
881 |
|
|
AppConfig.MyIPAddr.v[0] = MY_DEFAULT_IP_ADDR_BYTE1;
|
882 |
|
|
AppConfig.MyIPAddr.v[1] = MY_DEFAULT_IP_ADDR_BYTE2;
|
883 |
|
|
AppConfig.MyIPAddr.v[2] = MY_DEFAULT_IP_ADDR_BYTE3;
|
884 |
|
|
AppConfig.MyIPAddr.v[3] = MY_DEFAULT_IP_ADDR_BYTE4;
|
885 |
|
|
|
886 |
|
|
AppConfig.MyMask.v[0] = MY_DEFAULT_MASK_BYTE1;
|
887 |
|
|
AppConfig.MyMask.v[1] = MY_DEFAULT_MASK_BYTE2;
|
888 |
|
|
AppConfig.MyMask.v[2] = MY_DEFAULT_MASK_BYTE3;
|
889 |
|
|
AppConfig.MyMask.v[3] = MY_DEFAULT_MASK_BYTE4;
|
890 |
|
|
|
891 |
|
|
AppConfig.MyGateway.v[0] = MY_DEFAULT_GATE_BYTE1;
|
892 |
|
|
AppConfig.MyGateway.v[1] = MY_DEFAULT_GATE_BYTE2;
|
893 |
|
|
AppConfig.MyGateway.v[2] = MY_DEFAULT_GATE_BYTE3;
|
894 |
|
|
AppConfig.MyGateway.v[3] = MY_DEFAULT_GATE_BYTE4;
|
895 |
|
|
|
896 |
|
|
AppConfig.MyMACAddr.v[0] = MY_DEFAULT_MAC_BYTE1;
|
897 |
|
|
AppConfig.MyMACAddr.v[1] = MY_DEFAULT_MAC_BYTE2;
|
898 |
|
|
AppConfig.MyMACAddr.v[2] = MY_DEFAULT_MAC_BYTE3;
|
899 |
|
|
AppConfig.MyMACAddr.v[3] = MY_DEFAULT_MAC_BYTE4;
|
900 |
|
|
AppConfig.MyMACAddr.v[4] = MY_DEFAULT_MAC_BYTE5;
|
901 |
|
|
AppConfig.MyMACAddr.v[5] = MY_DEFAULT_MAC_BYTE6;
|
902 |
|
|
|
903 |
|
|
#if defined(STACK_USE_DHCP) || defined(STACK_USE_IP_GLEANING)
|
904 |
|
|
AppConfig.Flags.bIsDHCPEnabled = TRUE;
|
905 |
|
|
#else
|
906 |
|
|
AppConfig.Flags.bIsDHCPEnabled = FALSE;
|
907 |
|
|
#endif
|
908 |
|
|
|
909 |
|
|
#if defined(MPFS_USE_EEPROM)
|
910 |
|
|
p = (BYTE*)&AppConfig;
|
911 |
|
|
|
912 |
|
|
|
913 |
|
|
XEEBeginRead(EEPROM_CONTROL, 0x00);
|
914 |
|
|
c = XEERead();
|
915 |
|
|
XEEEndRead();
|
916 |
|
|
|
917 |
|
|
/*
|
918 |
|
|
* When a record is saved, first byte is written as 0x55 to indicate
|
919 |
|
|
* that a valid record was saved.
|
920 |
|
|
*/
|
921 |
|
|
if ( c == 0x55 )
|
922 |
|
|
{
|
923 |
|
|
XEEBeginRead(EEPROM_CONTROL, 0x01);
|
924 |
|
|
for ( c = 0; c < sizeof(AppConfig); c++ )
|
925 |
|
|
*p++ = XEERead();
|
926 |
|
|
XEEEndRead();
|
927 |
|
|
}
|
928 |
|
|
else
|
929 |
|
|
SaveAppConfig();
|
930 |
|
|
#endif
|
931 |
|
|
}
|
932 |
|
|
|
933 |
|
|
#if defined(MPFS_USE_EEPROM)
|
934 |
|
|
static void SaveAppConfig(void)
|
935 |
|
|
{
|
936 |
|
|
BYTE c;
|
937 |
|
|
BYTE *p;
|
938 |
|
|
|
939 |
|
|
p = (BYTE*)&AppConfig;
|
940 |
|
|
XEEBeginWrite(EEPROM_CONTROL, 0x00);
|
941 |
|
|
XEEWrite(0x55);
|
942 |
|
|
for ( c = 0; c < sizeof(AppConfig); c++ )
|
943 |
|
|
{
|
944 |
|
|
XEEWrite(*p++);
|
945 |
|
|
}
|
946 |
|
|
|
947 |
|
|
XEEEndWrite();
|
948 |
|
|
}
|
949 |
|
|
#endif
|
950 |
|
|
|
951 |
|
|
ROM char menu[] =
|
952 |
|
|
"\r\n\r\n\r\MCHPStack Demo Application v1.1 ("STARTUP_MSG", " __DATE__ ")\r\n\r\n"
|
953 |
|
|
|
954 |
|
|
"\t1: Change Board serial number.\r\n"
|
955 |
|
|
"\t2: Change default IP address.\r\n"
|
956 |
|
|
"\t3: Change default gateway address.\r\n"
|
957 |
|
|
"\t4: Change default subnet mask.\r\n"
|
958 |
|
|
"\t5: Enable DHCP & IP Gleaning.\r\n"
|
959 |
|
|
"\t6: Disable DHCP & IP Gleaning.\r\n"
|
960 |
|
|
"\t7: Download MPFS image.\r\n"
|
961 |
|
|
"\t8: Save & Quit.\r\n"
|
962 |
|
|
"\r\n"
|
963 |
|
|
"Enter a menu choice (1-8): ";
|
964 |
|
|
|
965 |
|
|
typedef enum _MENU_CMD
|
966 |
|
|
{
|
967 |
|
|
MENU_CMD_SERIAL_NUMBER = '1',
|
968 |
|
|
MENU_CMD_IP_ADDRESS,
|
969 |
|
|
MENU_CMD_GATEWAY_ADDRESS,
|
970 |
|
|
MENU_CMD_SUBNET_MASK,
|
971 |
|
|
MENU_CMD_ENABLE_AUTO_CONFIG,
|
972 |
|
|
MENU_CMD_DISABLE_AUTO_CONFIG,
|
973 |
|
|
MENU_CMD_DOWNLOAD_MPFS,
|
974 |
|
|
MENU_CMD_QUIT,
|
975 |
|
|
MENU_CMD_INVALID
|
976 |
|
|
} MENU_CMD;
|
977 |
|
|
|
978 |
|
|
ROM char* menuCommandPrompt[] =
|
979 |
|
|
{
|
980 |
|
|
"\r\nSerial Number (",
|
981 |
|
|
"\r\nDefault IP Address (",
|
982 |
|
|
"\r\nDefault Gateway Address (",
|
983 |
|
|
"\r\nDefault Subnet Mask (",
|
984 |
|
|
"\r\nDHCP & IP Gleaning enabled.\r\n",
|
985 |
|
|
"\r\nDHCP & IP Gleaning disabled.\r\n",
|
986 |
|
|
"\r\nReady to download MPFS image - Use Xmodem protocol.\r\n",
|
987 |
|
|
"\r\nNow running application..."
|
988 |
|
|
};
|
989 |
|
|
|
990 |
|
|
ROM char InvalidInputMsg[] = "\r\nInvalid input received - Input ignored.\r\n"
|
991 |
|
|
"Press any key to continue...\r\n";
|
992 |
|
|
|
993 |
|
|
void USARTPutROMString(ROM char* str)
|
994 |
|
|
{
|
995 |
|
|
BYTE v;
|
996 |
|
|
|
997 |
|
|
while( v = *str++ )
|
998 |
|
|
USARTPut(v);
|
999 |
|
|
}
|
1000 |
|
|
|
1001 |
|
|
|
1002 |
|
|
BYTE USARTGetString(char *buffer, BYTE bufferLen)
|
1003 |
|
|
{
|
1004 |
|
|
BYTE v;
|
1005 |
|
|
BYTE count;
|
1006 |
|
|
|
1007 |
|
|
count = 0;
|
1008 |
|
|
do
|
1009 |
|
|
{
|
1010 |
|
|
while( !USARTIsGetReady() );
|
1011 |
|
|
|
1012 |
|
|
v = USARTGet();
|
1013 |
|
|
|
1014 |
|
|
if ( v == '\r' || v == '\n' )
|
1015 |
|
|
break;
|
1016 |
|
|
|
1017 |
|
|
count++;
|
1018 |
|
|
*buffer++ = v;
|
1019 |
|
|
*buffer = '\0';
|
1020 |
|
|
if ( bufferLen-- == 0 )
|
1021 |
|
|
break;
|
1022 |
|
|
} while(1);
|
1023 |
|
|
return count;
|
1024 |
|
|
}
|
1025 |
|
|
|
1026 |
|
|
BOOL StringToIPAddress(char *str, IP_ADDR *buffer)
|
1027 |
|
|
{
|
1028 |
|
|
BYTE v;
|
1029 |
|
|
char *temp;
|
1030 |
|
|
BYTE byteIndex;
|
1031 |
|
|
|
1032 |
|
|
temp = str;
|
1033 |
|
|
byteIndex = 0;
|
1034 |
|
|
|
1035 |
|
|
while( v = *str )
|
1036 |
|
|
{
|
1037 |
|
|
if ( v == '.' )
|
1038 |
|
|
{
|
1039 |
|
|
*str++ = '\0';
|
1040 |
|
|
buffer->v[byteIndex++] = atoi(temp);
|
1041 |
|
|
temp = str;
|
1042 |
|
|
}
|
1043 |
|
|
else if ( v < '0' || v > '9' )
|
1044 |
|
|
return FALSE;
|
1045 |
|
|
|
1046 |
|
|
str++;
|
1047 |
|
|
}
|
1048 |
|
|
|
1049 |
|
|
buffer->v[byteIndex] = atoi(temp);
|
1050 |
|
|
|
1051 |
|
|
return (byteIndex == 3);
|
1052 |
|
|
}
|
1053 |
|
|
|
1054 |
|
|
|
1055 |
|
|
|
1056 |
|
|
MENU_CMD GetMenuChoice(void)
|
1057 |
|
|
{
|
1058 |
|
|
BYTE c;
|
1059 |
|
|
|
1060 |
|
|
while ( !USARTIsGetReady() );
|
1061 |
|
|
|
1062 |
|
|
c = USARTGet();
|
1063 |
|
|
|
1064 |
|
|
if ( c >= '1' && c < MENU_CMD_INVALID )
|
1065 |
|
|
return c;
|
1066 |
|
|
else
|
1067 |
|
|
return MENU_CMD_INVALID;
|
1068 |
|
|
}
|
1069 |
|
|
|
1070 |
|
|
#define MAX_USER_RESPONSE_LEN (20)
|
1071 |
|
|
void ExecuteMenuChoice(MENU_CMD choice)
|
1072 |
|
|
{
|
1073 |
|
|
char response[MAX_USER_RESPONSE_LEN];
|
1074 |
|
|
IP_ADDR tempIPValue;
|
1075 |
|
|
IP_ADDR *destIPValue;
|
1076 |
|
|
|
1077 |
|
|
USARTPut('\r');
|
1078 |
|
|
USARTPut('\n');
|
1079 |
|
|
USARTPutROMString(menuCommandPrompt[choice-'0'-1]);
|
1080 |
|
|
|
1081 |
|
|
switch(choice)
|
1082 |
|
|
{
|
1083 |
|
|
case MENU_CMD_SERIAL_NUMBER:
|
1084 |
|
|
itoa(AppConfig.SerialNumber.Val, response);
|
1085 |
|
|
USARTPutString((BYTE*)response);
|
1086 |
|
|
USARTPut(')');
|
1087 |
|
|
USARTPut(':');
|
1088 |
|
|
USARTPut(' ');
|
1089 |
|
|
|
1090 |
|
|
if ( USARTGetString(response, sizeof(response)) )
|
1091 |
|
|
{
|
1092 |
|
|
AppConfig.SerialNumber.Val = atoi(response);
|
1093 |
|
|
|
1094 |
|
|
AppConfig.MyMACAddr.v[4] = AppConfig.SerialNumber.v[1];
|
1095 |
|
|
AppConfig.MyMACAddr.v[5] = AppConfig.SerialNumber.v[0];
|
1096 |
|
|
}
|
1097 |
|
|
else
|
1098 |
|
|
goto HandleInvalidInput;
|
1099 |
|
|
|
1100 |
|
|
break;
|
1101 |
|
|
|
1102 |
|
|
case MENU_CMD_IP_ADDRESS:
|
1103 |
|
|
destIPValue = &AppConfig.MyIPAddr;
|
1104 |
|
|
goto ReadIPConfig;
|
1105 |
|
|
|
1106 |
|
|
case MENU_CMD_GATEWAY_ADDRESS:
|
1107 |
|
|
destIPValue = &AppConfig.MyGateway;
|
1108 |
|
|
goto ReadIPConfig;
|
1109 |
|
|
|
1110 |
|
|
case MENU_CMD_SUBNET_MASK:
|
1111 |
|
|
destIPValue = &AppConfig.MyMask;
|
1112 |
|
|
|
1113 |
|
|
ReadIPConfig:
|
1114 |
|
|
DisplayIPValue(destIPValue, FALSE);
|
1115 |
|
|
USARTPut(')');
|
1116 |
|
|
USARTPut(':');
|
1117 |
|
|
USARTPut(' ');
|
1118 |
|
|
|
1119 |
|
|
USARTGetString(response, sizeof(response));
|
1120 |
|
|
|
1121 |
|
|
if ( !StringToIPAddress(response, &tempIPValue) )
|
1122 |
|
|
{
|
1123 |
|
|
HandleInvalidInput:
|
1124 |
|
|
USARTPutROMString(InvalidInputMsg);
|
1125 |
|
|
while( !USARTIsGetReady() );
|
1126 |
|
|
USARTGet();
|
1127 |
|
|
}
|
1128 |
|
|
else
|
1129 |
|
|
{
|
1130 |
|
|
destIPValue->Val = tempIPValue.Val;
|
1131 |
|
|
}
|
1132 |
|
|
break;
|
1133 |
|
|
|
1134 |
|
|
|
1135 |
|
|
case MENU_CMD_ENABLE_AUTO_CONFIG:
|
1136 |
|
|
AppConfig.Flags.bIsDHCPEnabled = TRUE;
|
1137 |
|
|
break;
|
1138 |
|
|
|
1139 |
|
|
case MENU_CMD_DISABLE_AUTO_CONFIG:
|
1140 |
|
|
AppConfig.Flags.bIsDHCPEnabled = FALSE;
|
1141 |
|
|
break;
|
1142 |
|
|
|
1143 |
|
|
case MENU_CMD_DOWNLOAD_MPFS:
|
1144 |
|
|
#if defined(MPFS_USE_EEPROM)
|
1145 |
|
|
DownloadMPFS();
|
1146 |
|
|
#endif
|
1147 |
|
|
break;
|
1148 |
|
|
|
1149 |
|
|
case MENU_CMD_QUIT:
|
1150 |
|
|
#if defined(MPFS_USE_EEPROM)
|
1151 |
|
|
SaveAppConfig();
|
1152 |
|
|
#endif
|
1153 |
|
|
break;
|
1154 |
|
|
}
|
1155 |
|
|
}
|
1156 |
|
|
|
1157 |
|
|
|
1158 |
|
|
|
1159 |
|
|
|
1160 |
|
|
static void SetConfig(void)
|
1161 |
|
|
{
|
1162 |
|
|
MENU_CMD choice;
|
1163 |
|
|
|
1164 |
|
|
do
|
1165 |
|
|
{
|
1166 |
|
|
USARTPutROMString(menu);
|
1167 |
|
|
choice = GetMenuChoice();
|
1168 |
|
|
if ( choice != MENU_CMD_INVALID )
|
1169 |
|
|
ExecuteMenuChoice(choice);
|
1170 |
|
|
} while(choice != MENU_CMD_QUIT);
|
1171 |
|
|
|
1172 |
|
|
}
|
1173 |
|
|
|
1174 |
|
|
|
1175 |
|
|
#if defined(MPFS_USE_EEPROM)
|
1176 |
|
|
|
1177 |
|
|
/*********************************************************************
|
1178 |
|
|
* Function: BOOL DownloadMPFS(void)
|
1179 |
|
|
*
|
1180 |
|
|
* PreCondition: MPFSInit() is already called.
|
1181 |
|
|
*
|
1182 |
|
|
* Input: None
|
1183 |
|
|
*
|
1184 |
|
|
* Output: TRUE if successful
|
1185 |
|
|
* FALSE otherwise
|
1186 |
|
|
*
|
1187 |
|
|
* Side Effects: This function uses 128 bytes of Bank 4 using
|
1188 |
|
|
* indirect pointer. This requires that no part of
|
1189 |
|
|
* code is using this block during or before calling
|
1190 |
|
|
* this function. Once this function is done,
|
1191 |
|
|
* that block of memory is available for general use.
|
1192 |
|
|
*
|
1193 |
|
|
* Overview: This function implements XMODEM protocol to
|
1194 |
|
|
* be able to receive a binary file from PC
|
1195 |
|
|
* applications such as HyperTerminal.
|
1196 |
|
|
*
|
1197 |
|
|
* Note: In current version, this function does not
|
1198 |
|
|
* implement user interface to set IP address and
|
1199 |
|
|
* other informations. User should create their
|
1200 |
|
|
* own interface to allow user to modify IP
|
1201 |
|
|
* information.
|
1202 |
|
|
* Also, this version implements simple user
|
1203 |
|
|
* action to start file transfer. User may
|
1204 |
|
|
* evaulate its own requirement and implement
|
1205 |
|
|
* appropriate start action.
|
1206 |
|
|
*
|
1207 |
|
|
********************************************************************/
|
1208 |
|
|
#define XMODEM_SOH 0x01
|
1209 |
|
|
#define XMODEM_EOT 0x04
|
1210 |
|
|
#define XMODEM_ACK 0x06
|
1211 |
|
|
#define XMODEM_NAK 0x15
|
1212 |
|
|
#define XMODEM_CAN 0x18
|
1213 |
|
|
#define XMODEM_BLOCK_LEN 128
|
1214 |
|
|
|
1215 |
|
|
static BOOL DownloadMPFS(void)
|
1216 |
|
|
{
|
1217 |
|
|
enum SM_MPFS
|
1218 |
|
|
{
|
1219 |
|
|
SM_MPFS_SOH,
|
1220 |
|
|
SM_MPFS_BLOCK,
|
1221 |
|
|
SM_MPFS_BLOCK_CMP,
|
1222 |
|
|
SM_MPFS_DATA,
|
1223 |
|
|
} state;
|
1224 |
|
|
|
1225 |
|
|
BYTE c;
|
1226 |
|
|
MPFS handle;
|
1227 |
|
|
BOOL lbDone;
|
1228 |
|
|
BYTE blockLen;
|
1229 |
|
|
BYTE lResult;
|
1230 |
|
|
BYTE tempData[XMODEM_BLOCK_LEN];
|
1231 |
|
|
TICK lastTick;
|
1232 |
|
|
TICK currentTick;
|
1233 |
|
|
|
1234 |
|
|
state = SM_MPFS_SOH;
|
1235 |
|
|
lbDone = FALSE;
|
1236 |
|
|
|
1237 |
|
|
handle = MPFSFormat();
|
1238 |
|
|
|
1239 |
|
|
/*
|
1240 |
|
|
* Notify the host that we are ready to receive...
|
1241 |
|
|
*/
|
1242 |
|
|
lastTick = TickGet();
|
1243 |
|
|
do
|
1244 |
|
|
{
|
1245 |
|
|
/*
|
1246 |
|
|
* Update tick here too - just in case interrupt is not used.
|
1247 |
|
|
*/
|
1248 |
|
|
TickUpdate();
|
1249 |
|
|
|
1250 |
|
|
currentTick = TickGet();
|
1251 |
|
|
if ( TickGetDiff(currentTick, lastTick) >= (TICK_SECOND/2) )
|
1252 |
|
|
{
|
1253 |
|
|
lastTick = TickGet();
|
1254 |
|
|
USARTPut(XMODEM_NAK);
|
1255 |
|
|
|
1256 |
|
|
/*
|
1257 |
|
|
* Blink LED to indicate that we are waiting for
|
1258 |
|
|
* host to send the file.
|
1259 |
|
|
*/
|
1260 |
|
|
LATA2 ^= 1;
|
1261 |
|
|
}
|
1262 |
|
|
|
1263 |
|
|
} while( !USARTIsGetReady() );
|
1264 |
|
|
|
1265 |
|
|
|
1266 |
|
|
while(!lbDone)
|
1267 |
|
|
{
|
1268 |
|
|
/*
|
1269 |
|
|
* Update tick here too - just in case interrupt is not used.
|
1270 |
|
|
*/
|
1271 |
|
|
TickUpdate();
|
1272 |
|
|
|
1273 |
|
|
if ( USARTIsGetReady() )
|
1274 |
|
|
{
|
1275 |
|
|
/*
|
1276 |
|
|
* Toggle LED as we receive the data from host.
|
1277 |
|
|
*/
|
1278 |
|
|
LATA2 ^= 1;
|
1279 |
|
|
c = USARTGet();
|
1280 |
|
|
}
|
1281 |
|
|
else
|
1282 |
|
|
{
|
1283 |
|
|
/*
|
1284 |
|
|
* Real application should put some timeout to make sure
|
1285 |
|
|
* that we do not wait forever.
|
1286 |
|
|
*/
|
1287 |
|
|
continue;
|
1288 |
|
|
}
|
1289 |
|
|
|
1290 |
|
|
switch(state)
|
1291 |
|
|
{
|
1292 |
|
|
default:
|
1293 |
|
|
if ( c == XMODEM_SOH )
|
1294 |
|
|
{
|
1295 |
|
|
state = SM_MPFS_BLOCK;
|
1296 |
|
|
}
|
1297 |
|
|
else if ( c == XMODEM_EOT )
|
1298 |
|
|
{
|
1299 |
|
|
/*
|
1300 |
|
|
* Turn off LED when we are done.
|
1301 |
|
|
*/
|
1302 |
|
|
LATA2 = 1;
|
1303 |
|
|
|
1304 |
|
|
MPFSClose();
|
1305 |
|
|
USARTPut(XMODEM_ACK);
|
1306 |
|
|
lbDone = TRUE;
|
1307 |
|
|
}
|
1308 |
|
|
else
|
1309 |
|
|
USARTPut(XMODEM_NAK);
|
1310 |
|
|
|
1311 |
|
|
break;
|
1312 |
|
|
|
1313 |
|
|
case SM_MPFS_BLOCK:
|
1314 |
|
|
/*
|
1315 |
|
|
* We do not use block information.
|
1316 |
|
|
*/
|
1317 |
|
|
lResult = XMODEM_ACK;
|
1318 |
|
|
blockLen = 0;
|
1319 |
|
|
state = SM_MPFS_BLOCK_CMP;
|
1320 |
|
|
break;
|
1321 |
|
|
|
1322 |
|
|
case SM_MPFS_BLOCK_CMP:
|
1323 |
|
|
/*
|
1324 |
|
|
* We do not use 1's comp. block value.
|
1325 |
|
|
*/
|
1326 |
|
|
state = SM_MPFS_DATA;
|
1327 |
|
|
break;
|
1328 |
|
|
|
1329 |
|
|
case SM_MPFS_DATA:
|
1330 |
|
|
/*
|
1331 |
|
|
* Buffer block data until it is over.
|
1332 |
|
|
*/
|
1333 |
|
|
tempData[blockLen++] = c;
|
1334 |
|
|
if ( blockLen > XMODEM_BLOCK_LEN )
|
1335 |
|
|
{
|
1336 |
|
|
/*
|
1337 |
|
|
* We have one block data.
|
1338 |
|
|
* Write it to EEPROM.
|
1339 |
|
|
*/
|
1340 |
|
|
MPFSPutBegin(handle);
|
1341 |
|
|
|
1342 |
|
|
lResult = XMODEM_ACK;
|
1343 |
|
|
for ( c = 0; c < XMODEM_BLOCK_LEN; c++ )
|
1344 |
|
|
MPFSPut(tempData[c]);
|
1345 |
|
|
|
1346 |
|
|
handle = MPFSPutEnd();
|
1347 |
|
|
|
1348 |
|
|
USARTPut(lResult);
|
1349 |
|
|
state = SM_MPFS_SOH;
|
1350 |
|
|
}
|
1351 |
|
|
break;
|
1352 |
|
|
|
1353 |
|
|
}
|
1354 |
|
|
|
1355 |
|
|
}
|
1356 |
|
|
|
1357 |
|
|
|
1358 |
|
|
/*
|
1359 |
|
|
* This small wait is required if SLIP is in use.
|
1360 |
|
|
* If this is not used, PC might misinterpret SLIP
|
1361 |
|
|
* module communication and never close file transfer
|
1362 |
|
|
* dialog box.
|
1363 |
|
|
*/
|
1364 |
|
|
#if defined(STACK_USE_SLIP)
|
1365 |
|
|
{
|
1366 |
|
|
BYTE i;
|
1367 |
|
|
i = 255;
|
1368 |
|
|
while( i-- );
|
1369 |
|
|
}
|
1370 |
|
|
#endif
|
1371 |
|
|
return TRUE;
|
1372 |
|
|
}
|
1373 |
|
|
|
1374 |
|
|
#endif
|
1375 |
|
|
|
1376 |
|
|
|
1377 |
|
|
void XLCDDelay15ms(void)
|
1378 |
|
|
{
|
1379 |
|
|
DelayMs(15);
|
1380 |
|
|
}
|
1381 |
|
|
void XLCDDelay4ms(void)
|
1382 |
|
|
{
|
1383 |
|
|
DelayMs(4);
|
1384 |
|
|
}
|
1385 |
|
|
|
1386 |
|
|
void XLCDDelay100us(void)
|
1387 |
|
|
{
|
1388 |
|
|
INTCON_GIEH = 0;
|
1389 |
|
|
Delay10us(1);
|
1390 |
|
|
INTCON_GIEH = 1;
|
1391 |
|
|
}
|