Dear all,
I am trying to adopt the flash_fds example to fit my needs. What I initially need to get sorted out is how can I erase the memory pages after I have fully written on them. I have changed the handler of the example with the following code:
static void fds_evt_handler(fds_evt_t const * p_evt)
{
NRF_LOG_GREEN("Event: %s received (%s)",
fds_evt_str[p_evt->id],
fds_err_str[p_evt->result]);
switch (p_evt->id)
{
case FDS_EVT_INIT:
if (p_evt->result == FDS_SUCCESS)
{
m_fds_initialized = true;
}
break;
case FDS_EVT_WRITE:
{
if (p_evt->result == FDS_SUCCESS)
{
NRF_LOG_GREEN("Record ID:\t0x%04x", p_evt->write.record_id);
NRF_LOG_INFO("File ID:\t0x%04x", p_evt->write.file_id);
NRF_LOG_INFO("Record key:\t0x%04x", p_evt->write.record_key);
}
else
{
delete_all_begin();
fds_gc();
}
} break;
case FDS_EVT_DEL_RECORD:
{
if (p_evt->result == FDS_SUCCESS)
{
NRF_LOG_INFO("Record ID:\t0x%04x", p_evt->del.record_id);
NRF_LOG_INFO("File ID:\t0x%04x", p_evt->del.file_id);
NRF_LOG_INFO("Record key:\t0x%04x", p_evt->del.record_key);
}
m_delete_all.pending = false;
} break;
default:
break;
}
}
The change that I tried to make is that in case the p_evt->result doesn't return SUCCESS, then I will print a simple message in the terminal. Ideally I would like to print my message when p_evt->result = FDS_ERR_NO_SPACE_IN_FLASH or p_evt->result = FDS_ERR_NO_SPACE_IN_QUEUES.
In the main loop I am updating the configuration entry to the point that I am exhausting the memory that I have allocated for my project. This part appears to work, although there is a problem with the APP_ERROR_CHECK(rc), that I am also unable to figure out.
My whole main looks like this:
int main(void)
{
ret_code_t rc;
#ifdef SOFTDEVICE_PRESENT
ble_stack_init();
#else
clock_init();
#endif
timer_init();
log_init();
cli_init();
NRF_LOG_INFO("FDS example started.")
/* Register first to receive an event when initialization is complete. */
(void) fds_register(fds_evt_handler);
NRF_LOG_INFO("Initializing fds...");
rc = fds_init();
APP_ERROR_CHECK(rc);
/* Wait for fds to initialize. */
wait_for_fds_ready();
NRF_LOG_INFO("Available commands:");
NRF_LOG_INFO("- print all\t\tprint records");
NRF_LOG_INFO("- print config\tprint configuration");
NRF_LOG_INFO("- update\t\tupdate configuration");
NRF_LOG_INFO("- stat\t\tshow statistics");
NRF_LOG_INFO("- write\t\twrite a new record");
NRF_LOG_INFO("- delete\t\tdelete a record");
NRF_LOG_INFO("- delete_all\tdelete all records");
NRF_LOG_INFO("- gc\t\trun garbage collection");
NRF_LOG_INFO("Reading flash usage statistics...");
fds_stat_t stat = {0};
rc = fds_stat(&stat);
APP_ERROR_CHECK(rc);
NRF_LOG_INFO("Found %d valid records.", stat.valid_records);
NRF_LOG_INFO("Found %d dirty records (ready to be garbage collected).", stat.dirty_records);
fds_record_desc_t desc = {0};
fds_find_token_t tok = {0};
rc = fds_record_find(CONFIG_FILE, CONFIG_REC_KEY, &desc, &tok);
if (rc == FDS_SUCCESS)
{
/* A config file is in flash. Let's update it. */
fds_flash_record_t config = {0};
/* Open the record and read its contents. */
rc = fds_record_open(&desc, &config);
APP_ERROR_CHECK(rc);
/* Copy the configuration from flash into m_dummy_cfg. */
memcpy(&m_dummy_cfg, config.p_data, sizeof(configuration_t));
NRF_LOG_INFO("Config file found, updating boot count to %d.", m_dummy_cfg.boot_count);
/* Update boot count. */
m_dummy_cfg.boot_count++;
/* Close the record when done reading. */
rc = fds_record_close(&desc);
APP_ERROR_CHECK(rc);
/* Write the updated record to flash. */
rc = fds_record_update(&desc, &m_dummy_record);
APP_ERROR_CHECK(rc);
}
else
{
/* System config not found; write a new one. */
NRF_LOG_INFO("Writing config file...");
rc = fds_record_write(&desc, &m_dummy_record);
//APP_ERROR_CHECK(rc);
}
cli_start();
/* Enter main loop. */
for (;;)
{
if (!NRF_LOG_PROCESS())
{
power_manage();
}
rc = fds_record_write(&desc, &m_dummy_record);
//APP_ERROR_CHECK(rc);
cli_process();
delete_all_process();
}
}
I am using SDK 15.03, Segger Studio and Putty.
Any ideas/advice would be much appreciated.
