SD-Card Control Program / Using Micro-SD / based on SDCardTest Program (http://mbed.org/users/simon/programs/SDCardTest/gpdz4x/)

Dependencies:   mbed SDFileSystem

Please refer following my Notebook page.
/users/kenjiArai/notebook/sd-card-control-new/#

Revision:
2:1397a54382ec
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/org_main.cpp	Sat Apr 07 01:29:41 2018 +0000
@@ -0,0 +1,205 @@
+#if 0
+/*
+ * mbed Application program
+ *      SD-Card Control Program
+ *
+ *  Copyright (c) 2010-2014 Kenji Arai / JH1PJL
+ *  http://www.page.sannet.ne.jp/kenjia/index.html
+ *  http://mbed.org/users/kenjiArai/
+ *      March   28th, 2010  Started
+ *      April    3rd, 2010
+ *      October  3rd, 2014  use latest lib.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
+ * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
+ * AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+ 
+//-------------------------------------------------------------------------------------------------
+// Function
+//      5 channeles ADC data records into a file which is located in SD-Card
+//      If USE_LCD = 1, data shows on a Text LCD
+//      If USE_RTC = 1, time stamp also writes in the file
+// Connection
+//      Analog input    PIN 15,16,17,19,20
+//      LCD             PIN 22,21,8,7,6,5
+//       -> CAUTION!! pin assignment is different
+//          with " http://mbed.org/projects/cookbook/wiki/TextLCD "
+//      RTC             PIN 3 needs to connect 3V Battery
+//       -> Please refer my program " RTC_w_COM" for time adjustment
+//          at " http://mbed.org/users/kenjiArai/programs/RTC_w_COM/5yi9a/ "
+//-------------------------------------------------------------------------------------------------
+ 
+//  Include ---------------------------------------------------------------------------------------
+#include "mbed.h"
+#include "TextLCD.h"
+#include "SDFileSystem.h"
+ 
+//  Definition ------------------------------------------------------------------------------------
+#define DEBUG       1           // 1= Shows progress on PC via USB ( virtual COM line)
+#define USE_LCD     1           // 1= Display the data on LCD
+#define USE_RTC     1           // 1= Use RTC (need 3V supply and time adjustment before use)
+ 
+#define NO_OF_SAMPLE    100     // Total recording length -> unit=sec
+#define TIM_INTVL       10      // Insert time stamp in the file every ?? sec
+ 
+//  Object ----------------------------------------------------------------------------------------
+DigitalOut myled(LED1);         // Indicate the sampling period
+#if USE_LCD
+TextLCD lcd(p22, p21, p8, p7, p6, p5, TextLCD::LCD40x2);  // rs, e, d4-d7
+#endif
+AnalogIn ain_G_X(p15);          // G Sensor
+AnalogIn ain_G_Y(p16);          // G Sensor
+AnalogIn ain_G_Z(p17);          // G Sensor
+AnalogIn ain_BAT(p19);          // Battery Volt
+AnalogIn ain_TEMP(p20);         // Temperature Sensor
+SDFileSystem sd(p11, p12, p13, p14, "sd");  // do,di,clk,cs
+#if DEBUG
+Serial pc(USBTX, USBRX);
+#endif
+ 
+//  RAM -------------------------------------------------------------------------------------------
+ 
+//  ROM / Constant data ---------------------------------------------------------------------------
+ 
+//  Function prototypes ---------------------------------------------------------------------------
+ 
+//-------------------------------------------------------------------------------------------------
+//  Control Program
+//-------------------------------------------------------------------------------------------------
+int main()
+{
+    char buf[40];               // data buffer for text
+    int count;                  // count for number of record
+    float x,y,z,b,t;            // Analog data
+#if USE_RTC
+    time_t seconds, old_sec;    // RTC data based on seconds
+    int i;
+#endif
+ 
+    // Open the file
+#if USE_RTC
+    seconds = time(NULL);
+    seconds %= 100000000;               // Adjust 8 charcters file name
+    sprintf(buf,"/sd/%d.txt",seconds);  // File name is defined based on time from 1970/1/1
+    FILE *fp = fopen(buf, "w");         // Open "out.txt" on the local file system for writing
+#if DEBUG
+    printf("\r\n %s \r\n", buf);        // File name on the screen
+    printf(" use RTC\r\n");
+#endif
+#else
+    FILE *fp = fopen("/sd/out.txt", "w");// Open "out.txt" on the local file system for writing
+#if DEBUG
+    printf("\r\n /sd/out.txt\r\n");     // File name on the screen
+    printf(" Not use RTC\r\n");
+#endif
+#endif
+    if(fp == NULL) {
+        // File not open and stop
+#if USE_LCD
+        lcd.printf("  Could not open file for write\n");
+#endif
+#if DEBUG
+        printf( "\r\n Could not open file for write\r\n");
+#endif
+        while(1) ;
+    }
+    // Success file access
+    fprintf(fp, "This is a test program for logging /by JH1PJL\r\n");
+#if DEBUG
+    printf(     "This is a test program for logging /by JH1PJL\r\n");
+    printf("\r\nStart sampling\r\n");
+#endif
+#if USE_LCD
+    lcd.cls();
+#endif
+ 
+    count = 0;              // Initialze counter
+#if USE_RTC
+    seconds = time(NULL);   // Put time stamp in the file
+    old_sec = seconds;
+    strftime(buf,40, "Time:%I:%M:%S %p, %Y/%m/%d\r\n", localtime(&seconds));
+    fprintf(fp,buf);
+#if DEBUG
+    printf("  %s \r\n", buf);
+#endif
+#endif
+    while(1) {
+        // check time interval (1sec)
+#if USE_RTC
+        myled = 1;
+        wait(0.5);
+        myled = 0;
+        while ((seconds = time(NULL)) == old_sec) ;    // Wait 1 sec for loop
+        old_sec = seconds;
+#else
+        myled = 1;
+        wait(0.5);
+        myled = 0;
+        wait(0.5);
+#endif
+        // Get analog data from each port
+        x=ain_G_X.read();
+        y=ain_G_Y.read();
+        z=ain_G_Z.read();
+        b=ain_BAT.read();
+        t=ain_TEMP.read();
+        // Write data into the file
+        sprintf(buf, "G-Sen, %f, %f, %f  \r\n", x, y, z);
+        fprintf(fp,buf);
+#if USE_LCD
+        lcd.locate(0, 0);   // 1st line top
+        lcd.printf(buf);
+#endif
+#if DEBUG
+        printf(" %s", buf);
+#endif
+        sprintf(buf, "VB, %f, T, %f  \r\n", b, t);
+        fprintf(fp,buf);
+#if USE_LCD
+        lcd.locate(0, 1);   // 2nd line top
+        lcd.printf(buf);
+#endif
+#if DEBUG
+        printf(" %s", buf);
+#endif
+        // if reach to expected data number then finsh
+        if (++count > NO_OF_SAMPLE) {
+            break;
+        }
+        // Set time satmp
+#if USE_RTC
+        i = count / TIM_INTVL;
+        if (count == i * TIM_INTVL) {
+            //seconds = time(NULL);     // this line is wrong! BUG
+            strftime(buf,40, "Time:%I:%M:%S %p, %Y/%m/%d\r\n", localtime(&seconds));
+            fprintf(fp, buf);
+#if DEBUG
+            printf(" %s", buf);
+#endif
+        }
+#endif
+#if DEBUG
+        printf("Sampling #%d/end=%d\r\n", count, NO_OF_SAMPLE);
+#endif
+    }
+    // Set time satmp
+#if USE_RTC
+    sprintf(buf,"Sampling numbers: %d\r\n", count-1);
+    fprintf(fp, buf);
+    seconds = time(NULL);
+    strftime(buf,40, "Time:%I:%M:%S %p, %Y/%m/%d\r\n", localtime(&seconds));
+    fprintf(fp, buf);
+#if DEBUG
+    printf(" %s", buf);
+#endif
+#endif
+    fclose(fp);
+    // for debug
+#if DEBUG
+    printf("\r\nFinished sampling\r\n");
+#endif
+}
+#endif