wei zou / Mbed 2 deprecated Seeed_Arch_GPRS_V2_SD_Card_HelloWorld

demo code to use the SD card of Seeed Arch GPRS V2.0

Dependencies:   SDFileSystem USBDevice mbed

main.cpp@0:0f3ea0944add, 2014-04-29 (annotated)

Committer:
lawliet
Date:
Tue Apr 29 12:49:33 2014 +0000
Revision:
0:0f3ea0944add
Initial Version

Who changed what in which revision?

UserRevisionLine numberNew contents of line
lawliet 0:0f3ea0944add 1 /*
lawliet 0:0f3ea0944add 2 main.cpp
lawliet 0:0f3ea0944add 3 2014 Copyright (c) Seeed Technology Inc. All right reserved.
lawliet 0:0f3ea0944add 4
lawliet 0:0f3ea0944add 5 Author:lawliet zou(lawliet.zou@gmail.com)
lawliet 0:0f3ea0944add 6 2014-4-29
lawliet 0:0f3ea0944add 7
lawliet 0:0f3ea0944add 8 This library is free software; you can redistribute it and/or
lawliet 0:0f3ea0944add 9 modify it under the terms of the GNU Lesser General Public
lawliet 0:0f3ea0944add 10 License as published by the Free Software Foundation; either
lawliet 0:0f3ea0944add 11 version 2.1 of the License, or (at your option) any later version.
lawliet 0:0f3ea0944add 12
lawliet 0:0f3ea0944add 13 This library is distributed in the hope that it will be useful,
lawliet 0:0f3ea0944add 14 but WITHOUT ANY WARRANTY; without even the implied warranty of
lawliet 0:0f3ea0944add 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
lawliet 0:0f3ea0944add 16 Lesser General Public License for more details.
lawliet 0:0f3ea0944add 17
lawliet 0:0f3ea0944add 18 You should have received a copy of the GNU Lesser General Public
lawliet 0:0f3ea0944add 19 License along with this library; if not, write to the Free Software
lawliet 0:0f3ea0944add 20 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
lawliet 0:0f3ea0944add 21 */
lawliet 0:0f3ea0944add 22 #include "mbed.h"
lawliet 0:0f3ea0944add 23 #include "USBSerial.h"
lawliet 0:0f3ea0944add 24 #include "SDFileSystem.h"
lawliet 0:0f3ea0944add 25
lawliet 0:0f3ea0944add 26 SDFileSystem sd(P1_22, P1_21, P1_20, P1_23, "sd"); // mosi, miso, sclk, cs
lawliet 0:0f3ea0944add 27 USBSerial pc;
lawliet 0:0f3ea0944add 28 FILE *fp;
lawliet 0:0f3ea0944add 29
lawliet 0:0f3ea0944add 30 int main()
lawliet 0:0f3ea0944add 31 {
lawliet 0:0f3ea0944add 32 pc.printf("Initializing\r\n");
lawliet 0:0f3ea0944add 33
lawliet 0:0f3ea0944add 34 fp = fopen("/sd/hello.txt", "r");
lawliet 0:0f3ea0944add 35 if (fp != NULL) {
lawliet 0:0f3ea0944add 36 fclose(fp);
lawliet 0:0f3ea0944add 37 remove("/sd/hello.txt");
lawliet 0:0f3ea0944add 38 pc.printf("Remove an existing file with the same name\r\n");
lawliet 0:0f3ea0944add 39 }
lawliet 0:0f3ea0944add 40
lawliet 0:0f3ea0944add 41 fp = fopen("/sd/hello.txt", "w");
lawliet 0:0f3ea0944add 42 if (fp == NULL) {
lawliet 0:0f3ea0944add 43 pc.printf("Unable to write the file\r\n");
lawliet 0:0f3ea0944add 44 } else {
lawliet 0:0f3ea0944add 45 fprintf(fp, "mbed SDCard application!");
lawliet 0:0f3ea0944add 46 fclose(fp);
lawliet 0:0f3ea0944add 47 pc.printf("File successfully written!\r\n");
lawliet 0:0f3ea0944add 48 }
lawliet 0:0f3ea0944add 49 }