Athanassios Mavrogeorgiadis
Modbus RTU/ASCII/TCP with lwip TCP working partial, but with errors (retransmitions)
Dependencies: EthernetNetIf mbed
ModBus/portother.cpp@0:f54e9507171b, 2011-12-05 (annotated)
- Committer:
- tmav123
- Date:
- Mon Dec 05 22:49:02 2011 +0000
- Revision:
- 0:f54e9507171b
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| tmav123 | 0:f54e9507171b | 1 | /* |
| tmav123 | 0:f54e9507171b | 2 | * FreeModbus Libary: lwIP Port |
| tmav123 | 0:f54e9507171b | 3 | * Copyright (C) 2006 Christian Walter <wolti@sil.at> |
| tmav123 | 0:f54e9507171b | 4 | * |
| tmav123 | 0:f54e9507171b | 5 | * This library is free software; you can redistribute it and/or |
| tmav123 | 0:f54e9507171b | 6 | * modify it under the terms of the GNU Lesser General Public |
| tmav123 | 0:f54e9507171b | 7 | * License as published by the Free Software Foundation; either |
| tmav123 | 0:f54e9507171b | 8 | * version 2.1 of the License, or (at your option) any later version. |
| tmav123 | 0:f54e9507171b | 9 | * |
| tmav123 | 0:f54e9507171b | 10 | * This library is distributed in the hope that it will be useful, |
| tmav123 | 0:f54e9507171b | 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| tmav123 | 0:f54e9507171b | 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| tmav123 | 0:f54e9507171b | 13 | * Lesser General Public License for more details. |
| tmav123 | 0:f54e9507171b | 14 | * |
| tmav123 | 0:f54e9507171b | 15 | * You should have received a copy of the GNU Lesser General Public |
| tmav123 | 0:f54e9507171b | 16 | * License along with this library; if not, write to the Free Software |
| tmav123 | 0:f54e9507171b | 17 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| tmav123 | 0:f54e9507171b | 18 | * |
| tmav123 | 0:f54e9507171b | 19 | * File: $Id: portother.c,v 1.1 2006/08/30 23:18:07 wolti Exp $ |
| tmav123 | 0:f54e9507171b | 20 | */ |
| tmav123 | 0:f54e9507171b | 21 | |
| tmav123 | 0:f54e9507171b | 22 | /* ----------------------- System includes ----------------------------------*/ |
| tmav123 | 0:f54e9507171b | 23 | //#include <sys/types.h> |
| tmav123 | 0:f54e9507171b | 24 | //#include <sys/stat.h> |
| tmav123 | 0:f54e9507171b | 25 | //#include <unistd.h> |
| tmav123 | 0:f54e9507171b | 26 | #include <stdio.h> |
| tmav123 | 0:f54e9507171b | 27 | #include <stdarg.h> |
| tmav123 | 0:f54e9507171b | 28 | #include <string.h> |
| tmav123 | 0:f54e9507171b | 29 | |
| tmav123 | 0:f54e9507171b | 30 | #include "port.h" |
| tmav123 | 0:f54e9507171b | 31 | |
| tmav123 | 0:f54e9507171b | 32 | /* ----------------------- Defines ------------------------------------------*/ |
| tmav123 | 0:f54e9507171b | 33 | #define MB_FRAME_LOG_BUFSIZE 512 |
| tmav123 | 0:f54e9507171b | 34 | |
| tmav123 | 0:f54e9507171b | 35 | /* ----------------------- Start implementation -----------------------------*/ |
| tmav123 | 0:f54e9507171b | 36 | |
| tmav123 | 0:f54e9507171b | 37 | #ifdef MB_TCP_DEBUG |
| tmav123 | 0:f54e9507171b | 38 | void |
| tmav123 | 0:f54e9507171b | 39 | prvvMBTCPLogFrame( const CHAR * pucMsg, UCHAR * pucFrame, USHORT usFrameLen ) |
| tmav123 | 0:f54e9507171b | 40 | { |
| tmav123 | 0:f54e9507171b | 41 | int i; |
| tmav123 | 0:f54e9507171b | 42 | int res; |
| tmav123 | 0:f54e9507171b | 43 | int iBufPos = 0; |
| tmav123 | 0:f54e9507171b | 44 | size_t iBufLeft = MB_FRAME_LOG_BUFSIZE; |
| tmav123 | 0:f54e9507171b | 45 | static CHAR arcBuffer[MB_FRAME_LOG_BUFSIZE]; |
| tmav123 | 0:f54e9507171b | 46 | |
| tmav123 | 0:f54e9507171b | 47 | assert( pucFrame != NULL ); |
| tmav123 | 0:f54e9507171b | 48 | |
| tmav123 | 0:f54e9507171b | 49 | for( i = 0; i < usFrameLen; i++ ) |
| tmav123 | 0:f54e9507171b | 50 | { |
| tmav123 | 0:f54e9507171b | 51 | /* Print some additional frame information. */ |
| tmav123 | 0:f54e9507171b | 52 | switch ( i ) |
| tmav123 | 0:f54e9507171b | 53 | { |
| tmav123 | 0:f54e9507171b | 54 | case 0: |
| tmav123 | 0:f54e9507171b | 55 | /* TID = Transaction Identifier. */ |
| tmav123 | 0:f54e9507171b | 56 | res = snprintf( &arcBuffer[iBufPos], iBufLeft, "| TID = " ); |
| tmav123 | 0:f54e9507171b | 57 | break; |
| tmav123 | 0:f54e9507171b | 58 | case 2: |
| tmav123 | 0:f54e9507171b | 59 | /* PID = Protocol Identifier. */ |
| tmav123 | 0:f54e9507171b | 60 | res = snprintf( &arcBuffer[iBufPos], iBufLeft, " | PID = " ); |
| tmav123 | 0:f54e9507171b | 61 | break; |
| tmav123 | 0:f54e9507171b | 62 | case 4: |
| tmav123 | 0:f54e9507171b | 63 | /* Length */ |
| tmav123 | 0:f54e9507171b | 64 | res = snprintf( &arcBuffer[iBufPos], iBufLeft, " | LEN = " ); |
| tmav123 | 0:f54e9507171b | 65 | break; |
| tmav123 | 0:f54e9507171b | 66 | case 6: |
| tmav123 | 0:f54e9507171b | 67 | /* UID = Unit Identifier. */ |
| tmav123 | 0:f54e9507171b | 68 | res = snprintf( &arcBuffer[iBufPos], iBufLeft, " | UID = " ); |
| tmav123 | 0:f54e9507171b | 69 | break; |
| tmav123 | 0:f54e9507171b | 70 | case 7: |
| tmav123 | 0:f54e9507171b | 71 | /* MB Function Code. */ |
| tmav123 | 0:f54e9507171b | 72 | res = snprintf( &arcBuffer[iBufPos], iBufLeft, "|| FUNC = " ); |
| tmav123 | 0:f54e9507171b | 73 | break; |
| tmav123 | 0:f54e9507171b | 74 | case 8: |
| tmav123 | 0:f54e9507171b | 75 | /* MB PDU rest. */ |
| tmav123 | 0:f54e9507171b | 76 | res = snprintf( &arcBuffer[iBufPos], iBufLeft, " | DATA = " ); |
| tmav123 | 0:f54e9507171b | 77 | break; |
| tmav123 | 0:f54e9507171b | 78 | default: |
| tmav123 | 0:f54e9507171b | 79 | res = 0; |
| tmav123 | 0:f54e9507171b | 80 | break; |
| tmav123 | 0:f54e9507171b | 81 | } |
| tmav123 | 0:f54e9507171b | 82 | if( res == -1 ) |
| tmav123 | 0:f54e9507171b | 83 | { |
| tmav123 | 0:f54e9507171b | 84 | break; |
| tmav123 | 0:f54e9507171b | 85 | } |
| tmav123 | 0:f54e9507171b | 86 | else |
| tmav123 | 0:f54e9507171b | 87 | { |
| tmav123 | 0:f54e9507171b | 88 | iBufPos += res; |
| tmav123 | 0:f54e9507171b | 89 | iBufLeft -= res; |
| tmav123 | 0:f54e9507171b | 90 | } |
| tmav123 | 0:f54e9507171b | 91 | |
| tmav123 | 0:f54e9507171b | 92 | /* Print the data. */ |
| tmav123 | 0:f54e9507171b | 93 | res = snprintf( &arcBuffer[iBufPos], iBufLeft, "%02X", pucFrame[i] ); |
| tmav123 | 0:f54e9507171b | 94 | if( res == -1 ) |
| tmav123 | 0:f54e9507171b | 95 | { |
| tmav123 | 0:f54e9507171b | 96 | break; |
| tmav123 | 0:f54e9507171b | 97 | } |
| tmav123 | 0:f54e9507171b | 98 | else |
| tmav123 | 0:f54e9507171b | 99 | { |
| tmav123 | 0:f54e9507171b | 100 | iBufPos += res; |
| tmav123 | 0:f54e9507171b | 101 | iBufLeft -= res; |
| tmav123 | 0:f54e9507171b | 102 | } |
| tmav123 | 0:f54e9507171b | 103 | } |
| tmav123 | 0:f54e9507171b | 104 | |
| tmav123 | 0:f54e9507171b | 105 | if( res != -1 ) |
| tmav123 | 0:f54e9507171b | 106 | { |
| tmav123 | 0:f54e9507171b | 107 | /* Append an end of frame string. */ |
| tmav123 | 0:f54e9507171b | 108 | res = snprintf( &arcBuffer[iBufPos], iBufLeft, " |\r\n" ); |
| tmav123 | 0:f54e9507171b | 109 | if( res != -1 ) |
| tmav123 | 0:f54e9507171b | 110 | { |
| tmav123 | 0:f54e9507171b | 111 | vMBPortLog( MB_LOG_DEBUG, pucMsg, "%s", arcBuffer ); |
| tmav123 | 0:f54e9507171b | 112 | } |
| tmav123 | 0:f54e9507171b | 113 | } |
| tmav123 | 0:f54e9507171b | 114 | } |
| tmav123 | 0:f54e9507171b | 115 | #endif |
| tmav123 | 0:f54e9507171b | 116 | |
| tmav123 | 0:f54e9507171b | 117 | #ifdef MB_TCP_DEBUG |
| tmav123 | 0:f54e9507171b | 118 | void |
| tmav123 | 0:f54e9507171b | 119 | vMBPortLog( eMBPortLogLevel eLevel, const CHAR * szModule, const CHAR * szFmt, ... ) |
| tmav123 | 0:f54e9507171b | 120 | { |
| tmav123 | 0:f54e9507171b | 121 | va_list args; |
| tmav123 | 0:f54e9507171b | 122 | static const char *arszLevel2Str[] = { "ERROR", "WARN", "INFO", "DEBUG"}; |
| tmav123 | 0:f54e9507171b | 123 | |
| tmav123 | 0:f54e9507171b | 124 | ( void )printf( "%s: %s: ", arszLevel2Str[eLevel], szModule ); |
| tmav123 | 0:f54e9507171b | 125 | va_start( args, szFmt ); |
| tmav123 | 0:f54e9507171b | 126 | vprintf( szFmt, args ); |
| tmav123 | 0:f54e9507171b | 127 | va_end( args ); |
| tmav123 | 0:f54e9507171b | 128 | } |
| tmav123 | 0:f54e9507171b | 129 | #endif |