so when you flash the esp32, it execute the main at least once without showing you, that's why it had problem with showing me the first init. If I flash the esp32 without the sd card it works fine. also for some reason, calling the f_expand function inside the conditional statement was problematic, ...

At this point reading microsoft fat32 implementation and the wikipedia page is easier, I'm just gonna do it myself :lol: Did you try the code I gave you? even the simplest sample I gave at the end? please try it. I tried formatting my card more than 100 times while trying to debug this. I and about ...

So this is my last consecutive post(since I don't want to overwhelm the chat with consecutive posts) but I found this very simple snippet: f_open(&file, FILE_PATH, FA_OPEN_ALWAYS | FA_READ | FA_WRITE); if(f_size(&file) != 0) { printf("File opened with success\n"); } else { printf("File opened for th...

Ok, I just noticed a very strange behavior. Even if my code is behaving as 'expected' (provided you delay 3 seconds and execute the weird conditional logic), the file doesn't exist when I insert my sd card in my laptop.. Even if the esp32 is able to read it back again when I mount back the sd card i...

Hello. I am not sure why is it happening, but can you try something like this? I am using `access` to see if the file exists. #include <unistd.h> //... FIL* file = (FIL*) ff_memalloc(sizeof(FIL)); if (file == NULL) { ;/* handle NULL */ } memset(file, 0, sizeof(FIL)); FRESULT fr = 0; if (access(FILE...

hahaha, I love your solution where you check if the file exists, I came to a similar conclusion, except my solution doesn't work unless I do a weird conditional check with the file and then do a wait call for at least 3 seconds, sorry if its a bit convoluted with the function: FRESULT checkFileExist...

well, for example I definitely tried to change the filename, like if it was "filetext.txt" I rename it "filetex2.txt". normally I would expect that opening the same file twice execute the 1st code block(FA_CREATE_NEW creates a new file), then the second open would execute the 2nd code block(FA_OPEN_...

I am currently using the fatfs library to allocate a contiguous file for my project. The problem is that I think I found a bug in the fatfs library, for example I want to first try opening a file with FA_OPEN_EXISTING, and if the file doesn't exist and the function return fail, I'd like to fall back...

I'm pretty sure I had the esp extension in visual studio at 5.3, since I remember downgrading it to 5.0 with no success(these days with the millions lines of code I expect newer versions of software to break, so my first instinct was to downgrade to 5.0 instead of trying to upgrade). I found out abo...

In the documentation, we are told to use the #include "esp_vfs_fat.h" header. then the documentation proceed do define a bunch of functions like esp_vfs_fat_test_contiguous_file, and esp_vfs_fat_create_contiguous_file which I need for performance reasons since I want to allocate a contiguous file fo...