How to use micro SD card module with arduino zero

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1

Hi, I want to control the sd card module through arduino zero not MKR Zero. However, when I connect the wires and write the code in the same way as the Arduino Uno, it does not work. The lines are connected like this: MISO -> D12, MOSI -> D11, SCK -> D13, CS -> D10 and It stop at "while(!SD.begin(10));". How to solve it?

#if !( defined(ARDUINO_SAMD_ZERO) || defined(ARDUINO_SAMD_MKR1000) || defined(ARDUINO_SAMD_MKRWIFI1010) \
      || defined(ARDUINO_SAMD_NANO_33_IOT) || defined(ARDUINO_SAMD_MKRFox1200) || defined(ARDUINO_SAMD_MKRWAN1300) || defined(ARDUINO_SAMD_MKRWAN1310) \
      || defined(ARDUINO_SAMD_MKRGSM1400) || defined(ARDUINO_SAMD_MKRNB1500) || defined(ARDUINO_SAMD_MKRVIDOR4000) \
      || defined(ARDUINO_SAMD_CIRCUITPLAYGROUND_EXPRESS) || defined(__SAMD51__) || defined(__SAMD51J20A__) \
      || defined(__SAMD51J19A__) || defined(__SAMD51G19A__) || defined(__SAMD51P19A__)  \
      || defined(__SAMD21E15A__) || defined(__SAMD21E16A__) || defined(__SAMD21E17A__) || defined(__SAMD21E18A__) \
      || defined(__SAMD21G15A__) || defined(__SAMD21G16A__) || defined(__SAMD21G17A__) || defined(__SAMD21G18A__) \
      || defined(__SAMD21J15A__) || defined(__SAMD21J16A__) || defined(__SAMD21J17A__) || defined(__SAMD21J18A__) )
  #error This code is designed to run on SAMD21/SAMD51 platform! Please check your Tools->Board setting.
#endif

/////////////////////////////////////////////////////////////////

// These define's must be placed at the beginning before #include "SAMDTimerInterrupt.h"
// _TIMERINTERRUPT_LOGLEVEL_ from 0 to 4
// Don't define _TIMERINTERRUPT_LOGLEVEL_ > 0. Only for special ISR debugging only. Can hang the system.
// Don't define TIMER_INTERRUPT_DEBUG > 2. Only for special ISR debugging only. Can hang the system.
#define TIMER_INTERRUPT_DEBUG         0
#define _TIMERINTERRUPT_LOGLEVEL_     1

// Select only one to be true for SAMD21. Must must be placed at the beginning before #include "SAMDTimerInterrupt.h"
#define USING_TIMER_TC3         true      // Only TC3 can be used for SAMD51
#define USING_TIMER_TC4         false     // Not to use with Servo library
#define USING_TIMER_TC5         false
#define USING_TIMER_TCC         false
#define USING_TIMER_TCC1        false
#define USING_TIMER_TCC2        false     // Don't use this, can crash on some boards

// Uncomment To test if conflict with Servo library
//#include "Servo.h"

/////////////////////////////////////////////////////////////////

// To be included only in main(), .ino with setup() to avoid `Multiple Definitions` Linker Error
#include "SAMDTimerInterrupt.h"
#include <SPI.h>
#include <SD.h>
#define TEST_PIN                 9
#define TIMER_INTERVAL_US        500


#if USING_TIMER_TC3
  #define SELECTED_TIMER      TIMER_TC3
#elif USING_TIMER_TC4
  #define SELECTED_TIMER      TIMER_TC4
#elif USING_TIMER_TC5
  #define SELECTED_TIMER      TIMER_TC5
#elif USING_TIMER_TCC
  #define SELECTED_TIMER      TIMER_TCC
#elif USING_TIMER_TCC1
  #define SELECTED_TIMER      TIMER_TCC1
#elif USING_TIMER_TCC2
  #define SELECTED_TIMER      TIMER_TCC
#else
  #error You have to select 1 Timer  
#endif

//////////////////////////////////////////////

SAMDTimer ITimer(SELECTED_TIMER);
File myFile;

volatile uint32_t idx=0;
volatile uint8_t flag=0;
/*   0: ADC
 *   1: save
*/

//////////////////////////////////////////////

void TimerHandler(){
  static bool toggle = false;
  digitalWrite(TEST_PIN, toggle);
  toggle = !toggle;
  flag |= 1;
}

//////////////////////////////////////////////

void setup(){
  pinMode(TEST_PIN, OUTPUT);
  if (ITimer.attachInterruptInterval(TIMER_INTERVAL_US, TimerHandler)){
    ITimer.stopTimer();
    digitalWrite(TEST_PIN, HIGH);delay(1000);
    digitalWrite(TEST_PIN, LOW);delay(1000);
    digitalWrite(TEST_PIN, HIGH);delay(1000);
    digitalWrite(TEST_PIN, LOW);
  }else{
    digitalWrite(TEST_PIN, HIGH);
    while(1);
  }
  analogReadResolution(12);
  while(!SD.begin(10));  
  ITimer.restartTimer();
}

//////////////////////////////////////////////

void loop(){
}

I use this module.
sd

2

Have you tried using the SPI pins on the ICSP header ?

image

1 Like
3

It also does not work.

4

Have you tried the SD card examples that come with IDE?

Your topic has been moved to a more suitable location on the forum. Installation and Troubleshooting is not for problems with your project.

5

It still doesn't work. SD.begin keeps failing to read SD card.

6

Are you applying 5V power to the module's Vcc pin?

Is your SD card either SD or SDHC, but not SDXC?

7

Just started playing with Arduino myself.
Thanks @UKHeliBob for hint to use 6 pin connection on that board :). 5 pins from SDBoard goes there directly:
VCC/GRN/MOSI/MISO/SCT but CS (chip select) connected to pin 4 (8 worked as well) on Ardiuno Zero board and Sample code from Arduino IDE started to work.

8

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