LPC Microcontrollers中的主题 Re: File system for External SPI Flash

File system for External SPI Flash

ujwal_kumar_N_L — Fri, 27 Oct 2023 14:13:34 GMT

Hi community ,

I am currently working on I2S Audio project ,Im using SPI External Flash for data storage Im able to read data from Flash and send it to I2S Codec .Now I'm trying to implement File system .I found the Fliex_Levelx SDK program .
Specification :

Board :- LPC55S69
Flash:- Winbond W25Q32 -4MB -256 Bytes of page size -4KB sector size-64KB Block size.
SPI:-HSLSPI with DMA (FLEXCOMM
Running in FreeRTOS

PROBLEM:

Suggest me a simple file system for flash .
Filex SDK I'm unable to format the current Flash

status = fx_media_format(&flash_disk, _fx_levelx_driver, (VOID *)NULL,
(UCHAR *)media_memory, sizeof(media_memory), "FLASH_DISK",
2, 32, 0, real_sector_count, DEMO_SECTOR_SIZE,
DEMO_SECTORS_PER_CLUSTER, 1, 1).

Error im getting is : ERR: levelx NOR flash system error (91)
Im using FreeRTOS and the SDK uses Azure Levelx will there be any problem .
I just need FILE SYSTEM for making the project to run smoothly ,any other driver you guys can suggest .

Thank you and Regards
UJWAL KUMAR N L

@kbetts @xiangjun_rong @Juan-Rodarte @jesseg

Re: File system for External SPI Flash

ErichStyger — Fri, 27 Oct 2023 15:37:50 GMT

You might have a look at LittleFS (https://github.com/littlefs-project/littlefs ).

I'm using it both for the internal flash and external flash:

https://mcuoneclipse.com/2023/07/04/littlefs-file-system-with-mcu-internal-flash-memory/

I hope this helps,

Erich

Re: File system for External SPI Flash

ujwal_kumar_N_L — Mon, 30 Oct 2023 05:50:06 GMT

Hello,
I'm unable to find MCU lib in the project and I don't have SDK for the littleFS .Is there any other way I can proceed with the project .

Thank you and Regards
UJWAL KUMAR N L

Re: File system for External SPI Flash

ErichStyger — Mon, 30 Oct 2023 06:06:01 GMT

The McuLib is shared between many projects and is referenced by that project, three levels up here: https://github.com/ErichStyger/mcuoneclipse/tree/master/Examples/McuLib

LittleFS is part of that library and already adopted to the LPC55Sxx. You might check your SDK for your device as well, as NXP includes LittleFS in many of their SDK versions too.

Re: File system for External SPI Flash

ujwal_kumar_N_L — Mon, 30 Oct 2023 07:24:52 GMT

Thank you ,will check and let you know .