Hello,
I am working on an application where large amount of data are being stored onto a NOR flash. The flash is a W25Q02JV with 2Gb of storage, running little FS. My application works as expected filling a little over half of the flash with data, but runs into issues afterwards. The FS write calls take very long and errors out with little_fs claiming there is no more free space. There is still however 32,769 blocks remaining. I am using the default settings for little_fs parameters. Could I be making some better choices here? I've included some of my debug logs from both startup and runtime. Thank you for any help.
During startup:
...
00> [00:00:01.031,005] <inf> StorageLib: Enter Setup Little FS
00> [00:00:01.031,036] <inf> StorageLib: Area 1 at 0x0 on w25q02jv@0 for 268435456 bytes
00> [00:00:01.031,066] <inf> littlefs: LittleFS version 2.5, disk version 2.0
00> [00:00:01.092,742] <inf> littlefs: FS at w25q02jv@0:0x0 is 65536 0x1000-byte blocks with 512 cycle
00> [00:00:01.092,742] <inf> littlefs: sizes: rd 16 ; pr 16 ; ca 64 ; la 32
00> [00:00:01.248,077] <inf> StorageLib: Filesystem mounted at /lfs
00> [00:00:02.980,407] <inf> StorageLib: /lfs: bsize = 16 ; frsize = 4096 ; blocks = 65536 ; bfree = 32770
00> [00:00:03.130,615] <inf> StorageLib: Attempting to open directory: /lfs
00> [00:00:03.134,704] <inf> StorageLib: Listing directory /lfs ...
00> [00:01:00.086,242] <inf> StorageLib: [FILE] 12F5C425CAA9-669A57.DAT (size = 210248)
00> [00:01:00.188,659] <inf> StorageLib: [FILE] 12F5C425CAA9-669A58.DAT (size = 211314)
00> [00:01:00.291,015] <inf> StorageLib: [FILE] 12F5C425CAA9-669A59.DAT (size = 210002)
00> [00:01:00.393,127] <inf> StorageLib: [FILE] 12F5C425CAA9-669A5A.DAT (size = 210658)
00> [00:01:00.495,147] <inf> StorageLib: [FILE] 12F5C425CAA9-669A5B.DAT (size = 211314)
00> [00:01:00.596,923] <inf> StorageLib: [FILE] 12F5C425CAA9-669A5C.DAT (size = 210412)
...
During runtime:
...
00> [00:01:27.008,605] <inf> System: --- Device started and collecting data ---
00> [00:01:42.999,938] <inf> StorageLib: Opening file: /lfs/12F5C425CAA9-669E78.DAT
00> [00:01:45.201,293] <inf> StorageLib: Header written to file: /lfs/12F5C425CAA9-669E78.DAT
00> [00:14:36.135,070] <err> littlefs: WEST_TOPDIR/modules/fs/littlefs/lfs.c:589: No more free space 32769
00> [00:14:36.135,192] <err> fs: file write error (-28)
00> [00:14:36.136,383] <err> StorageLib: Failed to write sample 100 to file /lfs/12F5C425CAA9-669E78.DAT: -28