[ZIGBEE] ZED lost connection param data

RE: [ZIGBEE] ZED lost connection param data

Marte Myrvold — Fri, 05 Feb 2021 13:58:40 GMT

Hi,

I'll ask internally about this and come back to you.

Best regards,

Marte

RE: [ZIGBEE] ZED lost connection param data

_maibi — Tue, 02 Feb 2021 14:28:05 GMT

I checked log and found that sometimes flash write function called but data is empty.
I added the code to read back flash data after writing flash data in "nrf52_nvram.c" file.
It sometimes doesn't properly write flash. after reading flash data in 2~3 time, the flash data which read after writing flash is equal to writing data.

I don't experienced this issue after adding this code. Would you check up about this?

RE: [ZIGBEE] ZED lost connection param data

Marte Myrvold — Tue, 02 Feb 2021 13:40:13 GMT

Hi,

Are you still experiencing issues with this? Did adding bdb_load_factory_new_flag change anything at all?

[quote user="_maibi"]I wants to know data structure of read/write flash data.[/quote]

For this, you should look at the NVRAM, which handles the flash in the Zigbee SDK. You can use zb_nvram_write_dataset to write to flash. You can also read about Zigbee stack flash usage configuration and the new NVRAM API in v4.0.0 of the SDK.

Best regards,

Marte

RE: [ZIGBEE] ZED lost connection param data

_maibi — Tue, 26 Jan 2021 00:46:27 GMT

[quote userid="92402" url="~/f/nordic-q-a/70857/zigbee-zed-lost-connection-param-data/291055#291055"]This should be handled by ERASE_PERSISTENT_CONFIG. If it's set to false, then the network data will not get erased after a power cycle or reboot.[/quote]

ERASE_PERSISTENT_CONFIG already set false.

[quote userid="92402" url="~/f/nordic-q-a/70857/zigbee-zed-lost-connection-param-data/291055#291055"]The function bdb_load_factory_new is a part of the ZBOSS stack where the implementation is unavailable to the user, but if you search for it in the SDK you should still find references to it, and you should be able to use it.[/quote]

extern void bdb_load_factory_new_flag(void);


...
bdb_load_factory_new_flag();

I add this to the code. but It still be same. I wants to know data structure of read/write flash data.

[quote userid="92402" url="~/f/nordic-q-a/70857/zigbee-zed-lost-connection-param-data/291055#291055"]Could you please try calling it before zb_bdb_is_factory_new and see if you get the correct value from zb_bdb_is_factory_new then, and if your device is able to rejoin?[/quote]

Yes, If zb_bdb_is_factory_new returns 0, zed is always successfully rejoined.

RE: [ZIGBEE] ZED lost connection param data

Marte Myrvold — Mon, 25 Jan 2021 13:56:24 GMT

Hi,

[quote user=""]I wants to keep store zigbee pairing data after reset.[/quote]

This should be handled by ERASE_PERSISTENT_CONFIG. If it's set to false, then the network data will not get erased after a power cycle or reboot. The device will remember things such as PAN ID, Extended PAN ID, network address, and security key and will be able to rejoing silently to the network after reset. This information is stored in the NVRAM. So it should work in your case, and zb_bdb_is_factory_new should return 0. The function bdb_load_factory_new is a part of the ZBOSS stack where the implementation is unavailable to the user, but if you search for it in the SDK you should still find references to it, and you should be able to use it. Could you please try calling it before zb_bdb_is_factory_new and see if you get the correct value from zb_bdb_is_factory_new then, and if your device is able to rejoin?

If this doesn't fix your problem, got you please get a sniffer log and attach it here as a pcac file?

Best regards,

Marte