FAT file error

Question

Hi, 
 we are trying to use FAT file in nRF9160. Referring the test case in "ncs\zephyr	ests\subsys\fs\multi-fs\src" to mount the FAT file. 
 But getting an error like "ff.h" not found: 
 ../src/main.c:24:10: fatal error: ff.h: No such file or directory #include <ff.h> 
 Code tried: 
 #define FATFS_MNTP "/RAM:" #define TEST_FILE FATFS_MNTP"/testfile.txt" #define TEST_DIR FATFS_MNTP"/testdir" #define TEST_DIR_FILE FATFS_MNTP"/testdir/testfile.txt" 
 static FATFS fat_fs; 
 static struct fs_mount_t fatfs_mnt = { .type = FS_FATFS, .mnt_point = FATFS_MNTP, .fs_data = &fat_fs, }; 
 void main(void) { int res; res = fs_mount(&fatfs_mnt); if (res < 0) { printk("Error mounting fs [%d]
", res); return 0; }} 
 
 Help us to resolve the error or please point us to the sample code/application to store the content in file system. 
 And what all are ways to persist the settings/content in nRF9160 ? 
 
 Thanks, Bala

Øyvind · Accepted Answer

Have a look at the Flash API and the File systems chapter . You could also look at the NVS sample: NVS Sample for Zephyr using high level API, the sample illustrates the usage of NVS for storing data of different kind (strings, binary blobs, unsigned 32 bit integer) and also how to read them back from flash. The reading of data is illustrated for both a basic read (latest added value) as well as reading back the history of data (previously added values). Next to reading and writing data it also shows how data can be deleted from flash. 
 Kind regards, Øyvind

FAT file error

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