66 lines
2.1 KiB
C
66 lines
2.1 KiB
C
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/*
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* c't-Bot
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*
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* This program is free software; you can redistribute it
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* and/or modify it under the terms of the GNU General
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* Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your
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* option) any later version.
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* This program is distributed in the hope that it will be
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* useful, but WITHOUT ANY WARRANTY; without even the implied
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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* You should have received a copy of the GNU General Public
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* License along with this program; if not, write to the Free
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* Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307, USA.
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*
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*/
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/*! @file mini-fat.c
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* @brief Routinen zum erstellen von markierten Files fuer eine MMC-Karte.
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* @author Benjamin Benz (bbe@heise.de)
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* @date 04.01.07
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*/
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#include "ct-Bot.h"
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#include "mini-fat.h"
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#ifdef PC
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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/*!
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* Erzeugt eine Datei, die an den ersten Bytes die ID enthaelt. Dann folgen 512 - sizeof(id) nullen
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* Danach kommen so viele size kByte Nullen
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* @param filename Der Dateiname der zu erzeugenden Datei
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* @param id_string Die ID des Files, wie sie zu beginn steht
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* @param size kByte Nutzdaten, die der MCU spaeter beschreiben darf
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*/
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void create_mini_fat_file(const char* filename, const char* id_string, uint32 size){
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printf("Erstelle eine Mini-Fat-Datei mit dem Namen %s\n",filename);
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FILE *fp = fopen(filename, "w");
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/* Dateiparameter vorbereiten */
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uint8 id_len = strlen(id_string) >= MMC_FILENAME_MAX ? 254 : strlen(id_string);
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file_len_t length = {size*1024 - 512}; // im ersten Block stehen interne Daten
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printf("Schreibe ID: \"%s\"\n",id_string);
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fwrite(id_string,id_len,1,fp);
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/* Dateilaenge in die Datei schreiben */
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fseek(fp, 256, SEEK_SET);
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int8 i;
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for (i=3; i>=0; i--)
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putc(length.u8[i], fp);
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printf("Erzeuge Speicherplatz fuer %lu kByte Nutzdaten\n",size);
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fseek(fp, size*1024-1, SEEK_SET); // Ans Dateiende springen
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putc(0, fp); // eine Null schreiben
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fclose(fp);
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}
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#endif
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