main.cpp

00001 // SDFileSystem---1. https://developer.mbed.org/users/mbed_official/code/SDFileSystem/
00002 //                2. https://developer.mbed.org/users/simon/code/SDCardTest/
00003 // VCC:3.3v
00004 #include "mbed.h"
00005 #include "SDFileSystem.h"
00006  
00007 //SDFileSystem sd(PA_7, PA_6, PA_5, PB_6, "sd"); //  mosi, miso, sclk, cs
00008 //SPI spi(SPI_MOSI, SPI_MISO, SPI_SCK);
00009 //SPI_MOSI = PA_7, SPI_MISO = PA_6, SPI_SCK = PA_5, SPI_CS = PB_6,
00010 SDFileSystem sd( D4, D5, D3, D6, "sd"); //  mosi, miso, sclk, cs
00011 
00012 int main() 
00013 {
00014     printf("Hello World!\n");   
00015     
00016     mkdir("/sd/Amber", 0777);  //SD裡面的資料夾叫Amber,在此做宣告
00017     FILE *fp = fopen("/sd/Amber/Amber77.txt", "w");       //將檔案存進SD的資料夾Amber裡面,並取名為Amber77.txt
00018  
00019     /*mkdir("/sd/mydir", 0777);  //SD裡面的資料夾叫mydir,在此做宣告
00020     FILE *fp = fopen("/sd/mydir/Amber77.txt", "w");*/       //將檔案存進SD的資料夾mydir裡面,並取名為sdtest.txt
00021     
00022     /*
00023     mkdir("/sd/Amber20170222", 0777);  //SD裡面的資料夾叫Amber77,在此做宣告
00024     FILE *fp = fopen("/sd/Amber20170222/AngVel_PWM20170222a.csv", "a");     
00025     //將檔案存進SD的資料夾Amber77裡面,並取名為PWM_AngVel_PWM.xls/.xlsx/.csv
00026     fprintf(fp,"RunTime,Now_angularVelocity,control_PWM_Value\n");
00027     
00028     if(fp == NULL) 
00029             {
00030                     error("Could not open file for write\n");
00031             }
00032             fprintf(fp,"%.3f,%.3f,%.3f\n", RunTime,Now_angularVelocity,control_PWM_Value);  
00033             
00034     if(!mybutton)
00035         {
00036             StopRun.write(1);
00037             CW_CCW.write(1);                   // clockwise:0    counterclockwise:1
00038             PWM.write(0);
00039             break;
00040         }
00041     }
00042     fclose(fp);
00043     
00044     */
00045     
00046     
00047     if(fp == NULL) 
00048     {
00049         error("Could not open file for write\n");
00050     }
00051     fprintf(fp, "Go to the file ");             //檔案如sdtest.txt裡面的資料內容
00052     fclose(fp); 
00053  
00054     printf("Goodbye World!\n");
00055 }