Hello, I am using pca10028 and sdk 12.2. I have interfaced temp sensor with nrf51 and now I want to store that data continuously in memory of nrf51. I want to store min 4k sample consisting of 2 bytes of data. So should I prefer fds or pstorage or fstorage? Can I get example code to do this? Also I am am facing difficulty in displaying output through uart although code doesnt gives me error. I am attaching my code . Please let me know suggestions. Thanks, Shailav
error - debug1.PNG
Below is the needed FDS part in sdk_config.h (nRF51822):
// <e> FDS_ENABLED - fds - Flash data storage module
//==========================================================
#ifndef FDS_ENABLED
#define FDS_ENABLED 1
#endif
#if FDS_ENABLED
// <o> FDS_OP_QUEUE_SIZE - Size of the internal queue.
#ifndef FDS_OP_QUEUE_SIZE
#define FDS_OP_QUEUE_SIZE 4
#endif
// <o> FDS_CHUNK_QUEUE_SIZE - Determines how many @ref fds_record_chunk_t structures can be buffered at any time.
#ifndef FDS_CHUNK_QUEUE_SIZE
#define FDS_CHUNK_QUEUE_SIZE 8
#endif
// <o> FDS_MAX_USERS - Maximum number of callbacks that can be registered.
#ifndef FDS_MAX_USERS
#define FDS_MAX_USERS 8
#endif
// <o> FDS_VIRTUAL_PAGES - Number of virtual flash pages to use.
// <i> One of the virtual pages is reserved by the system for garbage collection.
// <i> Therefore, the minimum is two virtual pages: one page to store data and
// <i> one page to be used by the system for garbage collection. The total amount
// <i> of flash memory that is used by FDS amounts to @ref FDS_VIRTUAL_PAGES
// <i> @ref FDS_VIRTUAL_PAGE_SIZE * 4 bytes.
#ifndef FDS_VIRTUAL_PAGES
#define FDS_VIRTUAL_PAGES 3
#endif
// <o> FDS_VIRTUAL_PAGE_SIZE - The size of a virtual page of flash memory, expressed in number of 4-byte words.
// <i> By default, a virtual page is the same size as a physical page.
// <i> The size of a virtual page must be a multiple of the size of a physical page.
// <256=> 256
// <512=> 512
// <1024=> 1024
#ifndef FDS_VIRTUAL_PAGE_SIZE
#define FDS_VIRTUAL_PAGE_SIZE 256
#endif
#endif //FDS_ENABLED
// </e>
// <e> FSTORAGE_ENABLED - fstorage - Flash storage module
//==========================================================
#ifndef FSTORAGE_ENABLED
#define FSTORAGE_ENABLED 1
#endif
#if FSTORAGE_ENABLED
// <o> FS_QUEUE_SIZE - Configures the size of the internal queue.
// <i> Increase this if there are many users, or if it is likely that many
// <i> operation will be queued at once without waiting for the previous operations
// <i> to complete. In general, increase the queue size if you frequently receive
// <i> @ref FS_ERR_QUEUE_FULL errors when calling @ref fs_store or @ref fs_erase.
#ifndef FS_QUEUE_SIZE
#define FS_QUEUE_SIZE 4
#endif
// <o> FS_OP_MAX_RETRIES - Number attempts to execute an operation if the SoftDevice fails.
// <i> Increase this value if events return the @ref FS_ERR_OPERATION_TIMEOUT
// <i> error often. The SoftDevice may fail to schedule flash access due to high BLE activity.
#ifndef FS_OP_MAX_RETRIES
#define FS_OP_MAX_RETRIES 3
#endif
// <o> FS_MAX_WRITE_SIZE_WORDS - Maximum number of words to be written to flash in a single operation.
// <i> Tweaking this value can increase the chances of the SoftDevice being
// <i> able to fit flash operations in between radio activity. This value is bound by the
// <i> maximum number of words which the SoftDevice can write to flash in a single call to
// <i> @ref sd_flash_write, which is 256 words for nRF51 ICs and 1024 words for nRF52 ICs.
#ifndef FS_MAX_WRITE_SIZE_WORDS
#define FS_MAX_WRITE_SIZE_WORDS 256
#endif
#endif //FSTORAGE_ENABLED
// </e>