Reading and Writing to an SD Card via SPI on Arduino

Question

Russell Senior 2016-12-30

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/318584-reading-and-writing-to-an-sd-card-via-spi-on-arduino

评论： Pathmashantha Senanayaka 2020-12-29

Hi, I'm looking for some general guidance on writing data to an SD card through SPI on an Arduino UNO running through Matlab.

This is the SD card breakout I am using: https://www.sparkfun.com/products/13743. There are plenty of examples and helpful functions written to access data on the SD card for programming through the Arduino IDE. So, I can see a path to complete my project that way, BUT, I want to learn more about controlling external devices with Matlab and Simulink.

So. I cannot seem to find SD card specific functions in Matlab like find a file, open a file, and write to that file. Do I need to figure out the low level byte commands to send through SPI to accomplish these and then code that into Matlab, or does something like that already exist? I THINK the answer is no, that if I want to use Matlab, I need to figure out all of the communication commands for the SPI device.

If it helps, I can state a specific task: I want to write "Hello World!" onto an SD card through Arduino SPI using Matlab.

Any suggestions are appreciated.

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fus 2020-10-20

Did you ever figure this one out? I just got into this myself and wanted to comb through the internet for solutions because I don't know how to use sblocks yet. I'm surprised this is probably the only post on it I've seen so far.

Pathmashantha Senanayaka 2020-12-29