Creating CSV format file system in Flash memory through NRF52840's spi protocol

RE: Creating CSV format file system in Flash memory through NRF52840's spi protocol

Avishav — Tue, 26 Dec 2023 10:58:06 GMT

I will try. thanks

RE: Creating CSV format file system in Flash memory through NRF52840's spi protocol

Manikandan1 — Tue, 26 Dec 2023 09:37:38 GMT

The Flash chip in development board used QSPI protocol . So we have to use the Driver associated with QSPI .

what we did was , we used USB MSC Class sample code and QSPI flash write and read procedures. Its partially okay for my application . QSPI based drivers and our nominal FATFS will create the Volume and File creation . We can access it through USB MSC - The Volume will appear .inside the File appear along with data .

QSPI is the main protocol here . Hope you understood . Thanks

RE: Creating CSV format file system in Flash memory through NRF52840's spi protocol

Avishav — Tue, 26 Dec 2023 09:11:26 GMT

hi domko99,

did you make any progress? i am facing the exact same issue...

RE: Creating CSV format file system in Flash memory through NRF52840's spi protocol

domko99 — Mon, 09 Jan 2023 21:06:08 GMT

Hi. Did you make any progress? Because I am facing the same problem, trying to write data from sensor to files in SOC flash (flash memory of nrf52840). I am studying code here https://developer.nordicsemi.com/nRF_Connect_SDK/doc/2.2.0/zephyr/samples/subsys/fs/littlefs/README.html but it doesnt use files.

RE: Creating CSV format file system in Flash memory through NRF52840's spi protocol

Manikandan1 — Wed, 28 Dec 2022 12:23:52 GMT

Ok Thanks Sigurd Hellesvik . We will try and let you now.

RE: Creating CSV format file system in Flash memory through NRF52840's spi protocol

Sigurd Hellesvik — Wed, 28 Dec 2022 10:24:03 GMT

For example the littlefs sample can store data to internal Flash.

We do not have a nRF Connect SDK specific CSV library.
However, this is generic, so you could likely use commonly available C libraries for this and include it in your project.

We do not have any single sample creating CSV files and saving them to flash though, so you will have to make this yourself.

Regards,
Sigurd Hellesvik

RE: Creating CSV format file system in Flash memory through NRF52840's spi protocol

Manikandan1 — Wed, 28 Dec 2022 10:06:00 GMT

FS samples related to SD card one. How do I create a CSV format file and want to store the file in Flash memory or create the csv file and store some information . Is any sample code available like Crete a file " Task1.csv " ? Please confirm

RE: Creating CSV format file system in Flash memory through NRF52840's spi protocol

Sigurd Hellesvik — Wed, 28 Dec 2022 09:37:41 GMT

Hi,

In the nRF Connect SDK, see the Zephyr FS samples.

Regards,
Sigurd Hellesvik