SD Card interfacing with CC3200

Ajinkya R. Shinde

Intellectual 385 points

Other Parts Discussed in Thread: CC3200

Hello,

I am currently working on SD Card interfacing with CC3200 project. So I have some questions as following:

1. Commands for SD card are same for microSD card?

2. When we write any file to SD card or read from it, How should we know that EOF ?

3. I know how to read/write multiple blocks of file, but I would like to know how to write or read multiple files in SD card?

4. Instead of .txt file I wish to save .csv file in sd card with my sensor data, How can I perform this operation? Is it possible

Thanks

Best Regards,

Ajinkya Shinde

over 10 years ago

0 Praneet Kumar over 10 years ago

TI__Genius 16370 points

Ajinkya,

Apologies for the delayed response.

The Qs you have are not related to CC3200 as such. I'd suggest you refer the SD-Card Specifications for question #1, and question #2-#4 are dependent on the file-system you'd be using in your project.

-/Praneet

0 John Malaugh over 10 years ago in reply to Praneet Kumar

Prodigy 50 points

You need to add a file system library to your code to add SD card capability. I can recommend this library elm-chan.org/.../00index_e.html. You do need to hook the SD card up to a SPI port, and modify the driver to be compatible with your hardware. Once you have this working the API is the same as a standard file system (fopen, fread, fwrite etc) with slightly different names. A microSD and standard SD are the same electrically, only the size is different.

0 Rajneesh Sinha over 10 years ago in reply to John Malaugh

Prodigy 230 points

can you post the api code of cc3200 sdcard file operation which are create file and write something.

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SD Card interfacing with CC3200