write a value to a .csv file stored in the SD card and execute an equation using this value stored in the .csv file retrive the result of the equation and use it in further program in nRF52840

RE: write a value to a .csv file stored in the SD card and execute an equation using this value stored in the .csv file retrive the result of the equation and use it in further program in nRF52840

Edvin — Wed, 06 Mar 2024 10:23:46 GMT

The snippet would be the main file for the example I linked to. You can find it in SDK\examples\peripheral\fatfs\main.c. If you compile and run this example, then it should create a .txt file on your SD card, which you can open by inserting the SD card in an SD card reader on your computer.

Best regards,

Edvin

RE: write a value to a .csv file stored in the SD card and execute an equation using this value stored in the .csv file retrive the result of the equation and use it in further program in nRF52840

azwin — Fri, 01 Mar 2024 11:40:39 GMT

can you share any code snippet for the same

RE: write a value to a .csv file stored in the SD card and execute an equation using this value stored in the .csv file retrive the result of the equation and use it in further program in nRF52840

Edvin — Wed, 14 Feb 2024 14:03:40 GMT

Same example, different SDK:

https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.1.0/app_sdcard_example.html?cp=9_1_4_6_36

Best regards,

Edvin

RE: write a value to a .csv file stored in the SD card and execute an equation using this value stored in the .csv file retrive the result of the equation and use it in further program in nRF52840

azwin — Wed, 14 Feb 2024 12:00:09 GMT

i am using nrf SDK not zephyr. how to get started in nRF SDK

RE: write a value to a .csv file stored in the SD card and execute an equation using this value stored in the .csv file retrive the result of the equation and use it in further program in nRF52840

Edvin — Tue, 13 Feb 2024 13:44:31 GMT

Hello,

You can look into the zephyr\samples\subsys\usb\mass sample, as this uses an SD card reader. It will generate .txt files, but I guess it is possible to change that from the application running on the nRF.

The logic behind your equations and so on is something you need to write in your application, but for the file system and sd card, I guess this is the sample you can use to get started. Check that you get it up and running as described in the link above before you start modifying it.

Best regards,

Edvin