Issue with Mounting SD Card on ESP32 Using SPI Interface - CLR_E_VOLUME_NOT_FOUND

[sangyuxiaowu]

Hello,

I am currently working on a project where I need to mount an SD card on an ESP32 using the SPI interface. However, I am encountering an issue where the SD card fails to mount, and I receive the CLR_E_VOLUME_NOT_FOUND exception.

Setup:

• Microcontroller: ESP32 https://www.waveshare.com/wiki/ESP32-S3-Zero

• SD Card Module: Standard SPI SD card reader https://detail.1688.com/offer/672799682129.html?spm=a360q.8274423.0.0.54954c9a7BdPkC

• SD Card Format: FAT32 SDHC 32G

Wiring:

• ESP32 GPIO4 (CS) -> SD Card CS
• ESP32 GPIO3 (SCK) -> SD Card SCK
• ESP32 GPIO2 (MOSI) -> SD Card MOSI
• ESP32 GPIO1 (MISO) -> SD Card MISO
• ESP32 5V (VCC) -> SD Card VCC
• ESP32 GND -> SD Card GND

Code:

using AudioPlayer;
using nanoFramework.Hardware.Esp32;
using nanoFramework.System.IO;
using nanoFramework.System.IO.FileSystem;
using System;
using System.Diagnostics;
using System.Threading;

/*
 * nanoFramework.Hardware.Esp32
 * nanoFramework.System.IO.FileSystem
 * nanoFramework.System.Device.I2s
 * nanoFramework.System.Math
 * nanoFramework.System.Threading
 * nanoFramework.System.Device.Spi
 */

namespace AudioTest
{
    public class Program
    {

        static SDCard mycard0;

        public static void Main()
        {
            Debug.WriteLine("START");

            // 尝试手动挂载SD卡
            MountMyCard();

            const string audioFile = "D:\\music.wav";
            var player = new I2sWavPlayer(I2sWavPlayer.Bus.One, audioFile,9,8);
            player.Play();
            player.Dispose();

            mycard0.Unmount();
            mycard0.Dispose();

            Thread.Sleep(Timeout.Infinite);

        }

        static bool MountMyCard()
        {

            // SD Card:
            const uint cs = 4;
            Configuration.SetPinFunction(1, DeviceFunction.SPI1_MISO);
            Configuration.SetPinFunction(2, DeviceFunction.SPI1_MOSI);
            Configuration.SetPinFunction(3, DeviceFunction.SPI1_CLOCK);

            Debug.WriteLine("SD card initialized");
            // 初始化SD卡，使用SPI1总线
            mycard0 = new SDCard(new SDCardSpiParameters { spiBus = 1, chipSelectPin = cs });

            // 使用存储事件检测驱动器是否已挂载或卸载
            StorageEventManager.RemovableDeviceInserted += StorageEventManager_RemovableDeviceInserted;
            StorageEventManager.RemovableDeviceRemoved += StorageEventManager_RemovableDeviceRemoved;

            try
            {
                mycard0.Mount();
                Debug.WriteLine("Card Mounted");
                return true;
            }
            catch (Exception ex)
            {
                Debug.WriteLine($"Card failed to mount: {ex.Message}");
                Debug.WriteLine($"IsMounted: {mycard0.IsMounted}");
            }

            return false;
        }

        static void StorageEventManager_RemovableDeviceRemoved(object sender, RemovableDriveEventArgs e)
        {
            Debug.WriteLine($"Card removed - Event: {e.Event} Path: {e.Drive}");
        }

        static void StorageEventManager_RemovableDeviceInserted(object sender, RemovableDriveEventArgs e)
        {
            Debug.WriteLine($"Card inserted - Event: {e.Event} Path: {e.Drive}");
        }
    }
}

Observed Output:

SD card initialized
    ++++ Exception System.Exception - CLR_E_VOLUME_NOT_FOUND (1) ++++
    ++++ Message: 
    ++++ nanoFramework.System.IO.FileSystem.SDCard::MountNative [IP: 0000] ++++
    ++++ nanoFramework.System.IO.FileSystem.SDCard::Mount [IP: 0004] ++++
    ++++ AudioTest.Program::Main [IP: 005c] ++++
Exception thrown: 'System.Exception' in System.IO.FileSystem.dll
Card failed to mount: Exception was thrown: System.Exception
IsMounted: False
    ++++ Exception System.InvalidOperationException - CLR_E_INVALID_OPERATION (1) ++++
    ++++ Message: 
    ++++ nanoFramework.System.IO.FileSystem.SDCard::UnmountNative [IP: 0000] ++++
    ++++ nanoFramework.System.IO.FileSystem.SDCard::Unmount [IP: 0004] ++++
Exception thrown: 'System.InvalidOperationException' in System.IO.FileSystem.dll

Troubleshooting Steps Taken:

1. Verified hardware connections.
2. Formatted SD card to FAT32.
3. Tested SD card on other devices (works fine).
4. Updated to the latest version of nanoFramework libraries and firmware.
5. Checked nanoFramework documentation and examples.

Despite these efforts, the issue persists. Any insights or suggestions on how to resolve this issue would be greatly appreciated.

Thank you!

[alberk8]

Make sure that the VCC is 3.3v otherwise you can kill the IO port of ESP32

[sangyuxiaowu]

SD Card Module: Power supply is 4.5V~5.5V，Onboard 3.3V voltage regulator circuit

[alberk8]

Look at ESP32 Docs it says that there must be 10K pullup for CMD/CS and all the data line D0-D3 even if it is not used

[sangyuxiaowu]

Thank you so much for your help and suggestions. I really appreciate your support.
As a non-professional, I find it quite challenging to make these adjustments and ensure everything is set up correctly.
Therefore, I am considering purchasing a new SD card module that is more compatible with the ESP32 to avoid these issues.

[alberk8]

You are welcomed. For faster reply you can go to nF Discord channel.

[sangyuxiaowu]

Yes, I am also in that channel. Each platform has its own benefits. GitHub is convenient for organizing discussions and for future reference.