Hi everyone,
I am a PhD student at Politecnico di Torino in Italy and I am currently working on Arduino Nicla Sense ME. The main purpose of the study is to use the sensors on the Arduino and to save the collected data on a micro-SD connected to the board to work as a datalogger.
The storage device is the Micro SD Card Breakout Board from Adafruit (picture below).
I am following the tutorial on how to connect this board to Arduino available on Adafruit:
The Arduino Nicla Sense ME Pinout is the following:
I am connecting the pins as follows:
- 5V pin on micro-SD board with Vin on Nicla
- GND pin on micro-SD board with GND on Nicla
- CS on micro-SD board with CS on Nicla (pin 29)
- DI on micro-SD board with COPI on NIcla (pin 27) in substitution of MOSI on the Adafruit tutorial
- D0 on micro-SD board with CIPO on NIcla (pin 28) in substitution of MISO on the Adafruit tutorial
- CLK on micro-SD board with SCLK on NIcla (pin 11)
Then I try to upload the CardInfo.ino example sketch of "SD.h" library changing the
chipSelect variable to 29 as it should be the Nicla pin for CS.
/*
SD card test
This example shows how use the utility libraries on which the'
SD library is based in order to get info about your SD card.
Very useful for testing a card when you're not sure whether its working or not.
The circuit:
SD card attached to SPI bus as follows:
** MOSI - pin 11 on Arduino Uno/Duemilanove/Diecimila
** MISO - pin 12 on Arduino Uno/Duemilanove/Diecimila
** CLK - pin 13 on Arduino Uno/Duemilanove/Diecimila
** CS - depends on your SD card shield or module.
Pin 4 used here for consistency with other Arduino examples
created 28 Mar 2011
by Limor Fried
modified 9 Apr 2012
by Tom Igoe
*/
// include the SD library:
#include <SD.h>
#include <SPI.h>
// set up variables using the SD utility library functions:
Sd2Card card;
SdVolume volume;
SdFile root;
// change this to match your SD shield or module;
// Arduino Ethernet shield: pin 4
// Adafruit SD shields and modules: pin 10
// Sparkfun SD shield: pin 8
// MKRZero SD: SDCARD_SS_PIN
const int chipSelect = 29;
void setup() {
// Open serial communications and wait for port to open:
Serial.begin(115200);
while (!Serial) {
; // wait for serial port to connect. Needed for native USB port only
}
SPI.begin();
Serial.print("\nInitializing SD card...");
// we'll use the initialization code from the utility libraries
// since we're just testing if the card is working!
if (!card.init(SPI_HALF_SPEED, chipSelect)) {
Serial.println("initialization failed. Things to check:");
Serial.println("* is a card inserted?");
Serial.println("* is your wiring correct?");
Serial.println("* did you change the chipSelect pin to match your shield or module?");
while (1);
} else {
Serial.println("Wiring is correct and a card is present.");
}
// print the type of card
Serial.println();
Serial.print("Card type: ");
switch (card.type()) {
case SD_CARD_TYPE_SD1:
Serial.println("SD1");
break;
case SD_CARD_TYPE_SD2:
Serial.println("SD2");
break;
case SD_CARD_TYPE_SDHC:
Serial.println("SDHC");
break;
default:
Serial.println("Unknown");
}
// Now we will try to open the 'volume'/'partition' - it should be FAT16 or FAT32
if (!volume.init(card)) {
Serial.println("Could not find FAT16/FAT32 partition.\nMake sure you've formatted the card");
while (1);
}
Serial.print("Clusters: ");
Serial.println(volume.clusterCount());
Serial.print("Blocks x Cluster: ");
Serial.println(volume.blocksPerCluster());
Serial.print("Total Blocks: ");
Serial.println(volume.blocksPerCluster() * volume.clusterCount());
Serial.println();
// print the type and size of the first FAT-type volume
uint32_t volumesize;
Serial.print("Volume type is: FAT");
Serial.println(volume.fatType(), DEC);
volumesize = volume.blocksPerCluster(); // clusters are collections of blocks
volumesize *= volume.clusterCount(); // we'll have a lot of clusters
volumesize /= 2; // SD card blocks are always 512 bytes (2 blocks are 1KB)
Serial.print("Volume size (Kb): ");
Serial.println(volumesize);
Serial.print("Volume size (Mb): ");
volumesize /= 1024;
Serial.println(volumesize);
Serial.print("Volume size (Gb): ");
Serial.println((float)volumesize / 1024.0);
Serial.println("\nFiles found on the card (name, date and size in bytes): ");
root.openRoot(volume);
// list all files in the card with date and size
root.ls(LS_R | LS_DATE | LS_SIZE);
}
void loop(void) {
}
On the serial monitor I obtain an error as follows:
Initializing SD card...
++ MbedOS Fault Handler ++
FaultType: HardFault
Context:
R 0: 00000000
R 1: FFFFFFFF
R 2: 200093CC
R 3: 00000001
R 4: 159A55E5
R 5: 200000F8
R 6: 200004E8
R 7: 00016FF9
R 8: 000001D0
R 9: 00000000
R 10: 00000000
R 11: 00000000
R 12: 00018075
SP : 20003F70
LR : 0001836B
PC : 00042604
xPSR : 010F0000
PSP : 20003F50
MSP : 2000FFC0
CPUID: 410FC241
HFSR : 40000000
MMFSR: 00000000
BFSR : 00000082
UFSR : 00000000
DFSR : 00000000
AFSR : 00000000
BFAR : 159A55E1
Mode : Thread
Priv : Privileged
Stack: PSP
-- MbedOS Fault Handler --
++ MbedOS Error Info ++
Error Status: 0x80FF013D Code: 317 Module: 255
Error Message: Fault exception
Location: 0x42604
Error Value: 0x20009354
Current Thread: main Id: 0x20003FFC Entry: 0x19193 StackSize: 0xC00 StackMem: 0x200033D8 SP: 0x20003F70
For more info, visit: https://mbed.com/s/error?error=0x80FF013D&tgt=NICLA
-- MbedOS Error Info --
Can someone help me on finding the problem?
I tried to connect the micro-SD board to an Arduino Uno following Adafruit tutorial (linked before) and it correctly works. So I do not understand if it is a matter of coding or wrong wiring for the Nicla Sense ME.
Thank you very much,
Mirco Lo Monaco