Looking for a function to retrieve used and free space on SD card prior to write.

[jimtal001]

I am storing large files on an SD card using this great library (thank you), but I need to verify that there is enough space remaining before the write and be able to send remote message if storage is low. I have not been able to locate a function in your library to retrieve this info. If it exist, could you show me a simple example?

[carlk3]

Have a look at

no-OS-FatFS-SD-SPI-RPi-Pico/example/FatFS_SPI_example.cpp

Line 175 in 196016f

static void run_getfree() {

[jimtal001]

Thank You Carl. Another question: is there an example showing how to use: the get_fileinfo(...) function? Actually, all I need is the* file size. F*rom reviewing the ff.c file it looks like a call to get_fileinfo is required to access file size. Jim

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On Mon, Apr 15, 2024 at 8:59 PM Carl J Kugler III ***@***.***> wrote: Have a look at https://github.com/carlk3/no-OS-FatFS-SD-SPI-RPi-Pico/blob/196016f525e5b9c161f2b965ddd3045a4ef87649/example/FatFS_SPI_example.cpp#L175 — Reply to this email directly, view it on GitHub <#93 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AB5LB7QY7ZQKY5U3WDUYTN3Y5SAXFAVCNFSM6AAAAABGHMLVQSVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDANJYGA4TQNBZHE> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[carlk3]

The ls function populates a FILINFO structure:

no-OS-FatFS-SD-SPI-RPi-Pico/example/FatFS_SPI_example.cpp

Line 215 in 196016f

void ls(const char *dir) {

Also, see f_size.

[jimtal001]

Hello Carl, is there an example which demonstrates how to delete all files stored on the SD card? Thanks Jim

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On Tue, Apr 16, 2024 at 4:35 PM Carl J Kugler III ***@***.***> wrote: The ls function populates a FILINFO structure: https://github.com/carlk3/no-OS-FatFS-SD-SPI-RPi-Pico/blob/196016f525e5b9c161f2b965ddd3045a4ef87649/example/FatFS_SPI_example.cpp#L215 — Reply to this email directly, view it on GitHub <#93 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AB5LB7TVAGULSAZM5TKNV3DY5WKTLAVCNFSM6AAAAABGHMLVQSVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDANJZHE3DAMJTGQ> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[carlk3]

One way would be to simply format the card:

no-OS-FatFS-SD-SPI-RPi-Pico/example/FatFS_SPI_example.cpp

Line 122 in 196016f

static void run_format() {