Question about LittleFS on rp2040 system

[Tubie1977]

Hello,

one Question about the “integrated LittleFS filesystem – 2” tutorial:

I have tested the examples as shown in the tutorial. It seems to work fine. I can read / write files from / to the build in Flash Memory, but when i want to get the info’s about the File system, configured in the Settings of Arduino Up-loader i get the wrong data. The same Data as shown in the tutorial.

FSInfo *info;
LittleFS.info(*info);

uint32_t totalBytes 	= info->totalBytes;
uint32_t usedBytes	= info->usedBytes;
uint32_t freeBytes 	= totalBytes-usedBytes;
uint32_t maxPath 	= info->maxPathLength;
uint32_t blockSize 	= info->blockSize;
uint32_t pagesize 	= info->pageSize;
uint32_t maxOpen 	= info->maxOpenFiles;

Serial1.println("File System info:");

Serial1.print("Total space:      ");Serial1.print(totalBytes);Serial1.println("byte");
Serial1.print("Total space used: ");Serial1.print(usedBytes); Serial1.println("byte");
Serial1.print("Total space free: ");Serial1.print(freeBytes); Serial1.println("byte");
Serial1.print("Max path lenght:  ");Serial1.println(maxPath);
Serial1.print("Block size:       ");Serial1.print(blockSize); Serial1.println("byte");
Serial1.print("Page size:        ");Serial1.print(pagesize);  Serial1.println("byte");
Serial1.print("Max open files:   ");Serial1.println(maxOpen);

output is:

File System info:
Total space: 537140992byte
Total space used: 239byte
Total space free: 537140753byte
Max path lenght: 13107322
Block size: 53byte
Page size: 49byte
Max open files: 33649997

Test.txt 39 byte

What is going wrong here? Its the same values as shown in the tutorial…

Thank you for support.

Best regards,
Horst

[Renzo Mischianti]

Mmmm.. It’s very strange, It returns the specs of File-system, not the actual information like esp32 or esp8266.
But there isn’t another method to retrieve the free space, I think I must write to rp2040 maintainer.

Bye Renzo

[Author]

Posts