All Questions
495 questions
1 vote
1 answer
118 views
Shared Pin Mapping for SD Card and NAND Flash Interfaces on MPU
I am using a Microchip SAMA5D27 Wireless System-On-Module 1 (ATSAMA5D27-WLSOM1) MPU SOM Module with a Micron MT29F4G08ABADAWP-IT:D NAND Flash device for storing the boot image. I will also use a 4-bit ...
- 1,821
0 votes
1 answer
80 views
Getting SD card to IDLE state with an STM32L432
I have been having difficulty getting an SD card to initialize to communicate over SPI. I am using a 32GB PNY Elite SD card, and the microcontroller I am using is an STM32L432KC. Below is the code I ...
1 vote
1 answer
78 views
ESP32-C3 ESP-NOW Receiver + SD Logger, design Feedback Wanted
I’ve been working on a custom ESP32-C3 development board that’s designed to be a plug-and-play ESP-NOW receiver, with the option to log data straight to a microSD card. The idea is to make something ...
- 21
1 vote
1 answer
57 views
BeaglePlay SD card HW design
I am currently designing hardware around an AM6254ATCGHAALW MPU, and I am making great use of the BeaglePlay schematic: link Here is the SD card design in the schematic: I would prefer not to use the ...
- 35
2 votes
1 answer
158 views
Micro SD card wont exit idle state when using SPI bus
I'm writing some software in rust to interface with a microSD card connected to an STM32 over SPI. I'm having issues getting the SD card to exit the idle state with ACMD41. I have a 64gb card that ...
- 29
0 votes
0 answers
55 views
Compatible replacement for Hardkernel Odroid N2 microSD card slot
I have an Odroid N2 rev. 0.4 (HW and schematics), and its microSD slot is broken. I'd like to replate it, but I fail to find a compatible replacement, because most available seem to be wider, deeper, ...
- 101
0 votes
1 answer
129 views
How to build external loader for SD card? [closed]
I'm using STM32 and SDMMC peripheral to make external loader for an SD card,to flash touchgfx data to it and read it next . I have some questions. ...
1 vote
2 answers
149 views
SD Card SPI Interface Issue - Read Operation Returns incorrect reading
I am trying to implement an SD card with no filesystem in my ESP32 project. So far I have been able to initialize it and write data to it. However, I have not been able to correctly read the data from ...
- 21