Hello
I'm using BSEC_1.4.7.4_Generic_Release .
I find the lenth of bsec_state is different between in functionbsec_iot_init() and bsec_iot_loop().
One is 454 bytes and another is 139.
Why? how to save?
reference :
return_values_init bsec_iot_init(float sample_rate, float temperature_offset, bme680_com_fptr_t bus_write,
bme680_com_fptr_t bus_read, sleep_fct sleep, state_load_fct state_load, config_load_fct config_load)
{
return_values_init ret = {BME680_OK, BSEC_OK};
bsec_library_return_t bsec_status = BSEC_OK;
uint8_t bsec_state[BSEC_MAX_PROPERTY_BLOB_SIZE] = {0}; //454 Bytes
uint8_t bsec_config[BSEC_MAX_PROPERTY_BLOB_SIZE] = {0};
uint8_t work_buffer[BSEC_MAX_PROPERTY_BLOB_SIZE] = {0};
int bsec_state_len, bsec_config_len;
...................
/* Load library config, if available */
bsec_config_len = config_load(bsec_config, sizeof(bsec_config));
if (bsec_config_len != 0)
{
ret.bsec_status = bsec_set_configuration(bsec_config, bsec_config_len, work_buffer, sizeof(work_buffer));
if (ret.bsec_status != BSEC_OK)
{
return ret;
}
}
/* Load previous library state, if available */
bsec_state_len = state_load(bsec_state, sizeof(bsec_state));
if (bsec_state_len != 0)
{
ret.bsec_status = bsec_set_state(bsec_state, bsec_state_len, work_buffer, sizeof(work_buffer));
if (ret.bsec_status != BSEC_OK)
{
return ret;
}
}
...................
}
//-------------------------------------------------------------
void bsec_iot_loop(sleep_fct sleep, get_timestamp_us_fct get_timestamp_us, output_ready_fct output_ready,
state_save_fct state_save, uint32_t save_intvl)
{
................................
uint8_t bsec_state[BSEC_MAX_STATE_BLOB_SIZE]; 139 Bytes
uint8_t work_buffer[BSEC_MAX_STATE_BLOB_SIZE];
uint32_t bsec_state_len = 0;
uint32_t n_samples = 0;
bsec_library_return_t bsec_status = BSEC_OK;
while (1)
{
.....................
/* Retrieve and store state if the passed save_intvl */
if (n_samples >= save_intvl)
{
bsec_status = bsec_get_state(0, bsec_state, sizeof(bsec_state), work_buffer, sizeof(work_buffer), &bsec_state_len);
if (bsec_status == BSEC_OK)
{
state_save(bsec_state, bsec_state_len);
}
n_samples = 0;
}
...................
}
}
