RE: It takes too long to read data using settings(Internal Flash).

Elfving — Fri, 15 Aug 2025 07:54:47 GMT

Have a look at this previous reply by a coworker of mine. Could you try using an FCB backend and see if it helps?

Regards,

Elfving

RE: It takes too long to read data using settings(Internal Flash).

Leo Mo — Fri, 15 Aug 2025 02:04:54 GMT

Hi Elfving,

Currently, this sample has not been tested.

I using these code to read/write data.

/**
 * Initialization of settings and backend
 *
 * Can be called at application startup.
 * In case the backend is a FS Remember to call it after the FS was mounted.
 * For FCB backend it can be called without such a restriction.
 *
 * @return 0 on success, non-zero on failure.
 */
int settings_subsys_init(void);

/**
 * Write a single serialized value to persisted storage (if it has
 * changed value).
 *
 * @param name Name/key of the settings item.
 * @param value Pointer to the value of the settings item. This value will
 * be transferred to the @ref settings_handler::h_export handler implementation.
 * @param val_len Length of the value.
 *
 * @return 0 on success, non-zero on failure.
 */
int settings_save_one(const char *name, const void *value, size_t val_len);

/**
 * Load limited set of serialized items using given callback.
 *
 * This function bypasses the normal data workflow in settings module.
 * All the settings values that are found are passed to the given callback.
 *
 * @note
 * This function does not call commit function.
 * It works as a blocking function, so it is up to the user to call
 * any kind of commit function when this operation ends.
 *
 * @param[in]     subtree subtree name of the subtree to be loaded.
 * @param[in]     cb      pointer to the callback function.
 * @param[in,out] param   parameter to be passed when callback
 *                        function is called.
 * @return 0 on success, non-zero on failure.
 */
int settings_load_subtree_direct(
	const char             *subtree,
	settings_load_direct_cb cb,
	void                   *param);

Regards,

Leo

RE: It takes too long to read data using settings(Internal Flash).

Elfving — Thu, 14 Aug 2025 10:47:41 GMT

Hi Leo,

Are you seeing the same thing when running an official sample for this?

Regards,

Elfving