Flash storage, unable to write and read 1024 and 2048 bytes

[Sunil vignesh]

Hi, I am testing the flash storage of nrf52840 with NVS example from NCS v1.4.2

i have run the example code successfully. from the example code i have changed the

uint8_t longarray[128]; to uint8_t longarray[1024];

memset(&longarray , 'A',sizeof(longarray));

output log is

*** Booting Zephyr OS build v2.4.0-ncs2  ***

 rd - ID : 1 ; D :  ; L:16
No address found, adding 192.168.1.1 at id 1
 
wd - ID : 1 ; D : 192.168.1.1 ; L:12

write : O:f8000, D:192.168.1.1, L:12
write : O:f8ff0, D:, L:8
 rd - ID : 2 ; D : è ; L:8
No key found, adding it at id 2
 
wd - ID : 2 ; D : ÿþýüûúùø ; L:8

write : O:f800c, D:ÿþýüûúùø, L:8
write : O:f8fe8, D:, L:8
 rd - ID : 3 ; D :  ; L:4
No Reboot counter found, adding it at id 3
 
wd - ID : 3 ; D :  ; L:4

write : O:f8014, D:, L:4
write : O:f8fe0, D:, L:8
 rd - ID : 4 ; D : 192.168.1.1 ; L:16
Id: 4 not found, adding it
 
wd - ID : 4 ; D : DATA ; L:5

write : O:f8018, D:DATA, L:4
write : O:f8fd8, D:, L:8
 rd - ID : 5 ; D : Pa ; L:1024
Longarray not found, adding it as id 5

Query is

1. How to properly write and read the 1024 bytes,2048 bytes

2. I need to work in ble_his_keyboard example. where flash storage is initialized for pairing data storage. I need to store the sensor data . how to interface flash write into the main application of ble_hid_keyboard

[Simonr]

In NCS you also need to set the stack size correctly with the thread you're using. See the K_THREAD_STACK_ functions in your project, and make sure the stack size they reference to are large enough.

Best regards,

Simon

[Sunil vignesh]

for this

but when i add FOTA configuration in prj.conf

'PM_PM_PM_sensor_ID_LABEL_ADDRESS' undeclared (first use in this function)

[Simonr]

The link/picture you've added is broken on my end. Can you try uploading it again? 

Regarding your other ticket, try moving the "writable Flash pages to pages not used by the bootloader/DFU to be able to write to flash.

There are no declarations of anything called "PM_PM_PM" in the NCS, so you should check out whatever function you're getting this error from and check that you're using it correctly.

Best regards,

Simon

[Sunil vignesh]

Hi Simon,

We continue here

Issue 1 :

      Basic BLE_HID_KEYBOARD example with nRF52840 DK board the application use flash storage starts from F8000 by default it use F8000 - FF000 8 pages . Same code while enabling DFU Bootloader it starts from FE000 and used only 2 pages FE000 - FF000.

this logic is not understanding . Even if i given flash pages been F5000 and 3 pages only then also it starts from FE000.

Issue 2 :

        I have created two storage partition to not disturbing my data and the device ble / Pair setting .

       Default "storage" partition is used for the BLE Pair data storage , other activity of device are stored in the partition . "sensor" partition is used for storing my personal data.

Without DFU : Works perfect

With DFU :     It through an error

nrf52840dk_nrf52840.dts

peripheral_hids_keyboard.zip

[Sunil vignesh]

Have you check this simon

[Sunil vignesh]

hello simon are you there?