Switch record stored at the beginning of each switch page.

CRC32 is computed over magic, seq, app_id, and version (first 8 bytes).

Public Attributes#

uint32_t
magic

Must be BTL_SMP_RECORD_MAGIC.

uint16_t
seq

Monotonic sequence counter (higher = newer). uint16_t wrap handled via epoch reset in the Flash API.

uint8_t
app_id

Target application ID (e.g. app 1 or app 2).

uint8_t
version

Record format version (BTL_SMP_RECORD_VERSION).

uint32_t
crc32

CRC32 over (magic, seq, app_id, version).

Public Attribute Documentation#

magic#

uint32_t btl_smp_switch_record_t::magic

Must be BTL_SMP_RECORD_MAGIC.


seq#

uint16_t btl_smp_switch_record_t::seq

Monotonic sequence counter (higher = newer). uint16_t wrap handled via epoch reset in the Flash API.


app_id#

uint8_t btl_smp_switch_record_t::app_id

Target application ID (e.g. app 1 or app 2).


version#

uint8_t btl_smp_switch_record_t::version

Record format version (BTL_SMP_RECORD_VERSION).


crc32#

uint32_t btl_smp_switch_record_t::crc32

CRC32 over (magic, seq, app_id, version).