jajn HA

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8 years, 9 months ago.

Save sensors data to SD

Hi, i have questions about save data to SD.i use LPC4088 board. Could someone can give me an example to let me know clearly? And i would like to save bit file to SD. Just like Hex. Thanks very much!!!!! Thanks! These are sensors below.

#include "mbed.h"
void sensorA();
void sensorB();
void sensorC();

int main(){
      sensorA();
      sensorB();
      sensorC();
}

1 Answer

Sanjiv Bhatia
8 years, 9 months ago.

SD interface = SPI interface.

You should be able to use the following mbed code for your project:

https://developer.mbed.org/teams/mbed/code/SDFileSystem/

// Access the filesystem on an SD Card using SPI

#include "mbed.h"
#include "SDFileSystem.h"
 
// change the port pins to suit the SPI port pins on your target board
SDFileSystem sd(p5, p6, p7, p12, "sd"); // mosi, miso, sclk, cs

int main() {
    FILE *fp = fopen("/sd/myfile.txt", "w");
    fprintf(fp, "Hello World!\n");
    fclose(fp);
}

THx !! i will try

posted by jajn HA 27 Nov 2016