Hello everybody,
I used SDK14.2.0 , S132 .
I keep the data from nus_data in the uint8_t array. Then I am trying to write the array with use fds_write.
My fds_write function;
static ret_code_t kls_fds_write(uint32_t file_id, uint32_t record_key , uint8_t write_data[])
{
fds_record_t record;
fds_record_desc_t record_desc;
// Set up record.
record.file_id = file_id;
record.key = record_key;
record.data.p_data = &write_data;
record.data.length_words = (sizeof(write_data) + 3) / 4; //sizeof(write_data); //(sizeof(write_data) + 3) / sizeof(uint32_t);
ret_code_t rc;
rc = fds_record_write(&record_desc, &record);
if (rc != FDS_SUCCESS)
{
/* Handle error. */
NRF_LOG_INFO("FDS Write Handle error.");
return rc;
}
NRF_LOG_INFO("Writing Record ID = %d \r\n",record_desc.record_id);
return NRF_SUCCESS;
}
I use my fds_write function by this way;
static void save_data( uint8_t *p_data)
{
NRF_LOG_INFO("save_data");
uint8_t source_data_0[10] ;
// assign source datas ********************************
for (uint32_t i = 0; i < 10; i++)
{
source_data_0[i] = p_data[i];
}
while (flag_write_fds == false);
kls_fds_write(FILE_ID, RECORD_KEY, source_data_0);
NRF_LOG_HEXDUMP_INFO(source_data_0, sizeof(source_data_0));
allow_advertisement = false;
}
Then I am trying to read and store the data into another array.
My fds_read function;
static ret_code_t kls_fds_read(uint32_t file_id, uint32_t relevant_record_key , uint8_t read_data[])
{
fds_flash_record_t flash_record;
fds_record_desc_t record_desc;
fds_find_token_t ftok;
fds_record_t record;
/* It is required to zero the token before first use. */
memset(&ftok, 0x00, sizeof(fds_find_token_t));
uint32_t err_code;
NRF_LOG_INFO("Start searching... \r\n");
// Loop until all records with the given key and file ID have been found.
while (fds_record_find(file_id, relevant_record_key, &record_desc, &ftok) == FDS_SUCCESS)
{
err_code = fds_record_open(&record_desc, &flash_record);
if ( err_code != FDS_SUCCESS)
{
return err_code;
}
NRF_LOG_INFO("Found Record ID = %d\r\n",record_desc.record_id);
uint8_t * pointer_to_record_data;
pointer_to_record_data = (uint8_t *)record.data.p_data;
if(flash_record.p_header->record_key == relevant_record_key)
{
for(uint8_t i = 0; i < 10; i++)
{
read_data[i] = *pointer_to_record_data;
pointer_to_record_data++;
}
}
NRF_LOG_INFO("Data = ");
NRF_LOG_HEXDUMP_INFO(read_data, sizeof(read_data));
NRF_LOG_INFO("\r\n");
// Access the record through the flash_record structure.
// Close the record when done.
err_code = fds_record_close(&record_desc);
if (err_code != FDS_SUCCESS)
{
return err_code;
}
}
return NRF_SUCCESS;
}
I use my fds_read function by this way;
static void first_Setup(void)
{
NRF_LOG_INFO("first_Setup Start");
uint8_t dest_data_0[10] = {0};
while (flag_write_fds == 0);
kls_fds_read(FILE_ID, RECORD_KEY, dest_data_0);
NRF_LOG_INFO("dest_data_0 : ");
NRF_LOG_HEXDUMP_INFO(dest_data_0, 10);
}
I can write and read something but these are not meaningful data. Or I can not read the data I wrote because of anything. I obviously could not figure out exactly where the problem was.
The steps I want to take are as follows;
- Store particular nus_data into an array (uint8_t source_data_0[10] ) -> I'm already doing this. No problem.
- Write the stored array(uint8_t source_data_0[10] ) via FDS -> I do that already, but I do not know exactly whether it is successful.
- Read the stored array(uint8_t source_data_0[10] )via FDS and Store the read array(source_data_0[10] ) in another array (uint8_t dest_data_0[10] = {0}).
Test Result;
I sent the nus data( "aaaaaaaaaa" ) and I can store it into source_data_0[] successfully. Then I use my fds_write function;
0> <info> app: save_data
0> <info> app: Writing Record ID = 1
0>
0> <info> app: 61 61 61 61 61 61 61 61|aaaaaaaa
0> <info> app: 61 61 |aa
Finally I tried to read and result is;
0> <info> app: first_Setup Start
0> <info> app: Start searching...
0>
0> <info> app: Found Record ID = 1
0>
0> <info> app: Data =
0> <info> app: 00 04 00 20 |...
0> <info> app:
0>
0> <info> app: dest_data_0 :
0> <info> app: 00 04 00 20 E9 08 00 00|... é...
0> <info> app: 7D 05 |}.
As a result; The data I read is not the same as the data I write . May be I read it in the wrong format, I do not know exactly.
So, Do you have any suggestion ?
