Documentation SD/SDIO/MMC Driver FAT Filesystem Support FatFs library API Support Good, startoff with the Espressif sample project as a way to get up and running writing and reading a card simply. Supports 1bit and 4bit SD card interfaces. Raw Access The API provides functions that can read and write sectors directly if you don’t want […]
Category: SD/MMC Card
Directories
You can use directories, an example path:
File access functions
Path to SD Card drive Everything else… See here.
File access issues
fgets() does not handle 0x0d only Macintosh formatted text files In our use of fgets() (2023-11) using fgets with the esp-idf failed with mac formatted text files. The missing 0x0a LF character meant it did not detect the end of each line.