Questions tagged [sd]

Secure Digital (SD), a memory card standard. Has multiple form factors (Standard, MiniSD and microSD/TransFlash) and multiple capacity ratings (SDSC, SDHC, and SDXC). Also extends to SDIO, which allows peripherals in an SD form factor to attach to a host, similar to USB.

Filter by
Sorted by
Tagged with
1
vote
0answers
12 views

mcp3008 and sd card module error

I am making a datalogger arduino based, it reads from the adc mcp3008 and save on the sd card ADC and SD Module uses SPI . when the adc is used alone it works fine . but when adding the sd module to ...
-1
votes
0answers
28 views

How to execute application code (led blinking) from sd card on lpc1768

When I reset lpc1768, it should take executable code from sd card and run it. The code can be simple led blinking code. I just need overview and some references so I can try it on my own. I don't ...
0
votes
0answers
21 views

Samd51 fatfs driver with sd card backend stuck in an infinite loop

I am trying to use the FatFs module in the Atmel start for my project with the samd51j19a chip. The clock is @ 120mhz and the sd card is wired according to the diagram on the PINMUX. The program ...
0
votes
2answers
41 views

Interfacing SD card (SDSC) with Arduino Mega 2560 without SD module

I have just got into the idea of storing multiple scripts in an SD card, and using a custom driver written to the board to execute those scripts on demand. I have a 2GB SD card, and an Arduino Mega ...
2
votes
1answer
35 views

Interfacing 3-5V power source with 3.3V SD-card

I'm trying to find a reliable way to connect my nRF52840 BLE-module to a 3.3V SD-card. The application is going to run on a lithium-ion battery and power is extremely budgeted. The nRF52840 module can ...
0
votes
1answer
80 views

Read and Write file from SD Card with fpga

I'm working on a simple project with Quartus in which I've tried to implementent a NIOS II processor for read from and write to a SD Card. Here it is the schematic The C code is ...
0
votes
2answers
57 views

Talking to SD card *adapter* from FPGA

I have an FPGA (Lattice ICE40UP5K) at hand and need to do some SD card I/O with it. There are tutorials about interfacing with an SD card with an FPGA, but they typically concern with the case where ...
1
vote
1answer
82 views

Schematic check

I made my first schematic for an electronics project. Since this is the first time there'll probably be a lot of beginner mistakes and it would be really helpful if someone could check it for wiring ...
0
votes
0answers
53 views

STM32 SD SPI FR_DISK_ERR

Hi I am working on STM32F103c8t6 MCU.I am trying to run sd card with spi wiht this library https://github.com/eziya/STM32_SPI_SDCARD do every thing like youtube video and my connection is like video ...
2
votes
1answer
90 views

MicroSD to USB adapter

My goal is to make a MicroSD to USB adapter myself. With this question, I saw that I can use a USB2240 controller chip to connect my µSD card to my computer. In ...
0
votes
0answers
40 views

microSD card voltage level- reverse engineering design

Goal: Adding (back) a microSD socket to a camera that does not have one. The microSD pads are laid out and appear to be fully connected. Ground is to the ground plane, the data lines are with ...
0
votes
2answers
68 views

flash SPI memory vs USB SD card

i need to be able to update this memory storage device 1000 times per second via MCU in small 8 byte of data chunks trasnfers, and then read back the data into the PC. Should I go for the USB SD card ...
0
votes
0answers
44 views

Use MicroSD to SD adapter for read Memory Stick Micro M2

While searching in my personal affairs I found a Memory Stick Micro M2 (Sony) which I believe I was using in a phone. Unfortunately I no longer have the adapter ...
0
votes
0answers
42 views

STM32WB - sensor data sent via BLE and saved on SD card (SPI)

I have an STM32WB and I am trying to get the data from some pressure, temperature and humidity sensors through DMA and send them to my Android via BT, while at the same time saving it as well on a SD ...
0
votes
0answers
58 views

Open multiple files on SD Card using FatFs

The code is to log data in multiple files on SD card. The problem is that the SD card only opens and saves 1 file. When the if condition occurs in the 2nd time, the old file is deleted and the SD card ...
1
vote
1answer
60 views

Switch power on/off when SD card is inserted/removed in slot

I have ESP32 and I'm using it to read/write data from an SD card that is directly connected over SPI. This works fine. Now I want to switch on the ESP32 automatically by switching on the 3.3v power ...
0
votes
0answers
15 views

Part number / manufacturer of microSD connector of Raspberry PI zero

Do somebody know what is the part number / manufacturer of microSD card of Raspberry PI zero? I would like to include it on my Digikey cart if possible. Schematics does not show the part number... ...
0
votes
1answer
85 views

USB2244 enumeration failure

I have a PCB with a USB2244 USB to SDIO bridge IC connected to a Raspberry Pi Compute Module 3+. I (think I) designed based on the schematic circuit for the USB224x evaluation kit EVB-USB2240-IND. ...
0
votes
0answers
95 views

STM32WB55 connection to SD card with SPI FR_NOT_READY

I am very new at this and I don't understand a lot, so please be patient. I have an STM32WB55 to which I need to connect an SD module to store data from some sensors in SPI mode. I basically followed ...
0
votes
1answer
35 views

STM32 Nucleo board, SD card displaying symbols instead of numbers

Devices: STM32F4 The SD is working and the data is saving on the SD, but the problem is that the integers are displayed as symbols in this SD. So I think that the problem is that the function I used ...
0
votes
1answer
51 views

SD Card detect switch circuit diagram

I need to work on a design for an SD card connector. I'm having some trouble understanding the 'SD card detect' Switch and 'Write Protect' switch operation. Unfortunately, I don't have a physical ...
1
vote
2answers
192 views

SD card via SPI: pull-up resistors or dedicated IC?

It's common to find SD card connected to MCU via pull-up resistors, like in the schematics above: Recently I have read that newer SD card to achieve high write/read speeds needs to have sharps edges ...
1
vote
2answers
26 views

Boost converter for powering SD card

I want to use a switching boost converter that has 3.3V output in order to power an SD card. Also, the input voltage is a CR2477 battery, with voltage ranging from 2 to 3 volts. I have seen that an SD ...
1
vote
1answer
37 views

Do “standing”/90° MicroSD card slots exist?

For a rather cramped design, I need a way to hold a MicroSD card in a "standing"/"upright" position (90° to the PCB, rather than "flat"/"parallel" like most sockets). The card will be plugged and ...
4
votes
0answers
66 views

SD card SPI initialization Check Pattern Fail

I'm trying to interface a Swissbit 512MB (S-450u Series) SD card (datasheet here) with an ARM microcontroller through the card's SPI interface. The datasheet for this card says it's fully compliant ...
1
vote
0answers
54 views

SD card reader, had to add 1k resistor to make it work, why?

I was having a problem making my sd card reader work with Arduino Mega, I tried a lot of things to no avail until I read somewhere that I should try putting a 10k or 1k resistor in series with the ...
0
votes
1answer
61 views

Where is load-leveling data stored on a MicroSD card?

Reading this question on load-leveling of writes on a MicroSD card, Is it true that a SD/MMC Card does wear levelling with its own controller?, it prompted me to wonder where on the MicroSD card is ...
0
votes
1answer
91 views

Can I use the 1.8 inch TFT LCD SD slot for other purposes other than displaying images on the display?

Can I use the 1.8 inch TFT LCD SD slot for other purposes other than displaying images on the display? For example, storing text files on that SD card (that's on the display's SD slot)? Can I use that ...
1
vote
1answer
42 views

Can unwritten (but presumably otherwise usable/functional) blocks on an SD ever fail to be readable?

Does an SD come from "the factory" with all of its ECC (or spare area) set correctly? Sometimes when I blindly dd (copy) an entire SD card (that is only partially ...
2
votes
0answers
57 views

Errors in SPI communication with SD card due to heat

Given is a PCB with a STM32L432KCU6 and a microSD card connected to it via SPI at 40 MHz in SPI Mode 0. The communication is protected by CRC which is calculated by the microSD card on the fly. When ...
0
votes
1answer
56 views

Wear leveling and supply of voltage

Does anyone know if a NAND flash device (e.g. microSD) has to be continuously supplied with energy for its wear leveling algorithms work as designed? Or, if it doesn't matter if the device is (safely) ...
0
votes
0answers
46 views

SD card sharing between atmega2560 and sim800

I am designing a data logging system that uploads its data via 2G, and downloads new firmware from a server to the SD card, which the mcu boots from. So far, I have achieved Over The air update by ...
2
votes
1answer
189 views

Write endurance: Is there a difference between eMMC and Micro SD Card?

I have seen several forum posts (link 1, link 2) debating whether eMMC offers an endurance advantage over SD cards for embedded applications. My understanding was that the write endurance problem is ...
0
votes
1answer
35 views

Monitoring SD/TF Card status while interfacing with separate host

I'm working on project that requires taking several terabytes worth of RAW photos on DSLR controlled by a microcontroller. Initially the plan was to use a small Linux SBC running some kind of control ...
1
vote
1answer
133 views

PCB sound memory for toys [closed]

I want to build a toy. The initial build will be a prototype but if the idea 'sells,' I want to build en-masse. For the prototype, as I do not have (beyond what I learnt at Uni) industry experience, ...
0
votes
1answer
80 views

How to modify an SD card so it will be read only?

I checked SD card pins and their descriptions and saw that there is a "data input" and a "data out". If I covered, removed the data in pin, would it block all the writing requests to the card?
0
votes
1answer
98 views

Sandisk micro sd card not detected. How to diagnose the problem without knowledge about the sd card protocol? [closed]

Seems to be a common problem with Sandisk micro sd cards. Just a little before or after the warrenty period, the micro sd card suddently stop to be recognized. I mean phones and external card reader ...
0
votes
1answer
241 views

Initializing to MicroSD Card with Arduino produces error code 0x43, 0xff

I am trying to interface with a 32GB MicroSD card with an Arduino Uno, but the code consistently fails at the initialization stage. Below is my schematic (sorry for the horrendous schematic, I'm not ...
1
vote
0answers
252 views

Mounting Problems SD Card and STM32F7 Discovery

I've got some problems with the FATFs library and the STM32F7 Series. I want to connect a SD-Card (32GB, SanDisk, FAT32) with the F746G-Discovery-Board to save some data on it. (at first .txt-Files, ...
3
votes
1answer
3k views

CMOS Flash vs SD: Can I put a Gamecube Memory Card in an SD reader?

Backstory I've decided to run "Homebrew" on my Gamecube (and writing Homebrew for n00bs to document the process). Unfortunately, it seems that there's no way to do this without buying special ...
0
votes
1answer
61 views

Download a file from web browser to Micro SD card [closed]

I am trying to do a web server to store a file (mostly MP3) on a Micro SD card. I have stm32f407-discovery and w5500 and a Micro SD card reader (unbranded manual pcb drawed). How can I open a web ...
0
votes
0answers
102 views

STM32 SD Card SPI no response

I am using an STM32F0 to communicate with an SD card over SPI. However, when I send CMD0 after performing the required initialization, the SD card does not respond with anything on MISO. What's ...
-4
votes
1answer
60 views

Why CMD17 cannot return 0xFE?

I have a problem with CMD17 when I send this command and wait response I always get first response 0x00 but when I am waiting at 0xFE it cannot get it. In debug mode I get 0xFE. This my code for ...
2
votes
0answers
50 views

SPI SDHC card will not come ready, Regular (older) SD card works fine

I am trying to make an SPI interface on a 186 Microprocessor using bit banging and a GPIO to control the CS, SCLK, MOSI and reading in the MISO lines. Mode 0. I cannot get SDHC (version2) cards to ...
1
vote
1answer
180 views

ADC distortion when writing to microSD

I am doing my own project making a basic audio recording device using microcontroller's ADC to get the audio signal from electret microphone and saving data to microSD card. I'm using STM32L476RG ...
0
votes
3answers
329 views

Make an SD card installed on PCB readable through USB

I work on a circuit that logs data onto an SD card. I want to know how I can read the SD card data directly from my PC using USB. I am thinking of using a type of SPI to USB converter because there ...
0
votes
1answer
115 views

Will using a microSD card reader with STM32 produce logical errors? [closed]

I have a microSD card reader which needs \$5\,\mathrm{V}\$ to operate. I am interfacing it with STM32 MCU operating at \$3.3\,\mathrm{V}\$. Will it operate normally when I provide only \$3.3\,\mathrm{...
0
votes
0answers
206 views

Can I connect two MCUs directly to one micro SD card without additional components?

I am new to this community so I am sorry if I'm asking in a wrong place or something out of topic. I think I have considered everything. :) So, now the basic info: I am working on a project which ...
0
votes
1answer
121 views

Arduino nano + microSD module + ethernet module does not assign IP address

I would like to create a small web server to enable or disable devices via ethernet connection, except that the network module and the SD reader did not seem to work if connected simultaneously. That ...
0
votes
1answer
81 views

Level shifting between SD Card and Lipo-powered microcontroller

I have an ATtiny861 microcontroller powered directly from a Lipo battery. My circuit is designed to operate on supply voltages from 3V - 4.2V (bonus if it tolerates up to 4.6V). I need to interface ...

1
2 3 4 5
8