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.
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ESP32-S3 SD Card not working
I am trying to interface an SD card with my ESP32-S3 module. The code I am using as follows.
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How can I enable read only mode in microSD card
I have microSD card which doesn't have read-only switch (but the adapter does).
I would like to switch microSD card into read-only mode (without adapter), so inserting it into any device like ...
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ESP8266 NodeMCU SD Card Not Initializing
I have tried numerous tutorials, Arduino examples and I cant get an SD to initialize. There is a card inserted that is formatted with exFAT and there is one file test.txt. Particularly https://www....
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SD card via SPI: any way of getting it out of stuck state after aborted SPI operation(s) without power cycling it?
using ESP32 and its IDF platform libraries to access SD card via SPI, we have a situation where e.g. panic reboot of ESP32 leaves the SD card 'stuck' such that it cannot be mounted any more after ...
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Reading ECG wave data from .dat and .hea file from SD card with Arduino DUE to produce it on DAC pin
I am trying to produce an ECG wave on the DAC pin of the Arduino DUE.
Here are my setup details.
SD card is attached to Arduino DUE with SPI connections.
I have 2 files (.dat and .hea) of ECG data on ...
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Discrepancy between SKR Mini E3V2 and documented SD Card Pinout
There is a schematic of the BTT SKR Mini E3 V2 available on the internet and I was taking a look at the SD Card Pinout.
First of all I noticed, that it appears to run in SPI and not SD mode. Fine okay,...
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Interface micro SD card with MCU and USB port at the same time [closed]
I'm designing a PCB and I would like an MCU (ESP32-S3) to be able to write periodically on a micro SD card (logs). I'm using SPI. I also would like to be able to get those logs through a USB port on ...
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Accessing Data through web saved on microcontroller SD card
I'm using a microcontroller (Arduino Uno) to collect sensor data and saving it in .txt format to the interfaced SD card. I would like to access this data remotely through web (WAN).
Please advise on ...
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STM32MP157D-DK1 OS building
I am trying to flash binaries that I have generated with Yocto, intended for an STM32MP157D-DK1 board. However, during the process, I am encountering the following error: 'Partition 0xBB not found in ...
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SD/µSD card pins
I would like to make a µSD card to USB adapter using this chip and this connector but the SD data pins on the chip are SD_D[0-7] whereas on the connector it's 063 and a bunch of PCIe pins. Which pin ...
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Reset issue while issuing commands to SD card
I am busy with a project where I'm trying to make a custom flashcard for the Gameboy (for more details, refer to https://efacdev.nl/projects/ecgc). For the flashcard, I am trying to load games from an ...
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SPI: Write to display while reading multiple blocks from SD card
I'm reading BMP images with hundreds of kB's raw from an SD card and parse/write the image data to a TFT LCD with an AVR MCU with 2kB RAM.
Reading a single block of 512 bytes with CMD17, passing it to ...
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EMF Coupling from microSD writes
Looking for some pointers. I am having an issue with noise coupling into the onboard ADCs while writing to a microSD card. Audio from an pre-amp at 46.875 ksps
I am using a SAMD51 microcontroller (...
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STM32 writing to SD card using FATFS sometimes takes longer than normally
I am using nucleo-f401re board for my project and I want to write sensor data to SD card. I am writing data when sensor interrupts occur, and that happens at 408 Hz, so I have around 2 ms to write ...
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What does an SD Card do internally during the 74 clock cycles at startup
It is documented that the SD Bus Interface requires 74 clock cycles before the first command is sent:
Taken from SD Specifications Part 1 Physical Layer, Simplified Specification, Version 6.00
https:/...
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