Zigbee maximum device number

RE: Zigbee maximum device number

Edvin — Mon, 08 Jun 2020 14:51:33 GMT

Hello,

In order to store 200 devices, you need to increase the ZIGBEE_NVRAM_PAGE_SIZE to 68kb. It requires 67.2kB, but needs to be rounded up to a multiple of a physical page size (4).

Please check out the attached spreadsheet for the calculations, which I received from our Zigbee Team.

devzone.nordicsemi.com/.../memory_5F00_config.xlsx

Best regards,

Edvin

RE: Zigbee maximum device number

Edvin — Wed, 27 May 2020 11:57:08 GMT

I am trying to get it confirmed with our Zigbee team. I am sorry, but I don't have 200 devices to test with, so I need confirmation from them. I pinged them yesteday, but I'll do it again.

RE: Zigbee maximum device number

abe — Wed, 27 May 2020 07:58:44 GMT

Hello Edvin
have you any confirm if the flash storage amount as shown in my precedent post is enough for 200 devices?

RE: Zigbee maximum device number

abe — Fri, 08 May 2020 13:37:38 GMT

What you means with

[quote userid="26071" url="~/f/nordic-q-a/59684/zigbee-maximum-device-number/248980"] errors during initialization?[/quote]

In any case, I have no errors during boot phase, also when it is a "first start" after all flash area erase before programming the device.

RE: Zigbee maximum device number

Edvin — Fri, 08 May 2020 13:31:49 GMT

I want to say yes. Unless you have any error messages during the initialization, there shouldn't be any issues, I believe. The stack will set aside as much memory as it needs. Let me double check with the team. In the meantime, can you check that it doesn't throw any errors during initialization?

BR,

Edvin

RE: Zigbee maximum device number

abe — Thu, 07 May 2020 14:53:43 GMT

Ok, for my customer 200 device are good.
Now, I see that flash space reserved for zBoss stack is configured on sdk_config.h file (see code below)

// <i> Expressed in number of 4-byte words.
// <i> By default, a virtual page is the same size as a physical page.
// <i> The size of a virtual page must be a multiple of the size of a physical page.
// <1024=> 1024 
// <2048=> 2048 

#ifndef FDS_VIRTUAL_PAGE_SIZE
#define FDS_VIRTUAL_PAGE_SIZE 1024
#endif

// <s> FDS_VIRTUAL_PAGES_RESERVED - The number of virtual flash pages that are used by other modules.

// <i> FDS module stores its data in the last pages of the flash memory.
// <i> By setting this value, you can move flash end address used by the FDS.
// <i> As a result the reserved space can be used by other modules.
#ifndef FDS_VIRTUAL_PAGES_RESERVED
#define FDS_VIRTUAL_PAGES_RESERVED ((ZIGBEE_NVRAM_PAGE_SIZE * (ZIGBEE_NVRAM_PAGE_COUNT + ZIGBEE_NVRAM_CONFIG_PAGE_COUNT))/(FDS_VIRTUAL_PAGE_SIZE * 4))
#endif

// <i> Selectively enable Zigbee binary trace logs. Possible values (logical or): TRACE_SUBSYSTEM_ZCL, TRACE_SUBSYSTEM_ZDO, TRACE_SUBSYSTEM_NWK. Defaults to 0x0000.

#ifndef ZIGBEE_TRACE_MASK
#define ZIGBEE_TRACE_MASK 0
#endif

// <o> ZIGBEE_TIMER_INSTANCE_NO - nRF timer instance used by Zigbee stack 
#ifndef ZIGBEE_TIMER_INSTANCE_NO
#define ZIGBEE_TIMER_INSTANCE_NO 3
#endif

// <o> ZIGBEE_NVRAM_PAGE_SIZE - Size of logical Zigbee NVRAM page in bytes 
// <i> The size must be a multiply of physical page size

#ifndef ZIGBEE_NVRAM_PAGE_SIZE
#define ZIGBEE_NVRAM_PAGE_SIZE 16384
#endif

// <o> ZIGBEE_NVRAM_PAGE_COUNT - Number of Zigbee NVRAM data pages 
#ifndef ZIGBEE_NVRAM_PAGE_COUNT
#define ZIGBEE_NVRAM_PAGE_COUNT 2
#endif

// <o> ZIGBEE_NVRAM_CONFIG_PAGE_COUNT - Number of Zigbee NVRAM configuration pages 
#ifndef ZIGBEE_NVRAM_CONFIG_PAGE_COUNT
#define ZIGBEE_NVRAM_CONFIG_PAGE_COUNT 1
#endif

My futher question:
These settings are enough for 200 device?
(I will remember you that I'm developing a Coordinator)
Please, if possible to answer me asap.
Thanks. Abele

RE: Zigbee maximum device number

Edvin — Thu, 07 May 2020 13:55:13 GMT

Hello,

I am sorry for the late reply. I received this today:

Q: What's the address of FLASH storage for these data?

A: Zigbee storage is placed at the end of the Flash, start address depends on:

Amount of flash available at given chip
Size of flash to be used by the Zigbee stack

Q: How many Zigbee node can store? I need to have until 250 node stored.

A: From looking at docs I can see limitation of 200 nodes. Ble_zigbee_template includes zb_mem_config_med.h which indicates network size of 32 nodes (taken directly from zb_mem_config.h, also available in Infocenter ).

Are there any further questions from the customer?

So it doesn't look like there is possible to store 250 nodes, unfortunately.

This is due to memory restrictions.

RE: Zigbee maximum device number

abe — Mon, 04 May 2020 13:47:57 GMT

News??

RE: Zigbee maximum device number

Edvin — Tue, 28 Apr 2020 13:44:18 GMT

Sorry. Not yet. I pinged the internal ticket yesterday. I'll keep you posted.

RE: Zigbee maximum device number

abe — Mon, 27 Apr 2020 08:58:09 GMT

Hello Edvin, any news for me?

RE: Zigbee maximum device number

abe — Wed, 22 Apr 2020 07:18:34 GMT

I apologize, in my last post I have miss this detail. I'm developing a coordinator

RE: Zigbee maximum device number

Edvin — Tue, 21 Apr 2020 22:32:14 GMT

Hello Abele,

The question on whether you were implementing a router node or a coordinator node was a question that I received from the zigbee team. The amount of storage that is required per node depends on this. So are you developing a router node or a coordinator?

BR,

Edvin

RE: Zigbee maximum device number

abe — Tue, 21 Apr 2020 12:19:42 GMT

Hello Edvin,
I know the links you sent me, they are helpful to understanding the structure of memory usage.
But I will like anyway to know the maximum # nodes can stored without any change on ble_zigbee_template from nRF5_SDK_for_Thread_and_Zigbee_v3.1.0_c7c4730 I used as starting point for my application.
Many thanks
Abele

RE: Zigbee maximum device number

Edvin — Tue, 21 Apr 2020 10:00:30 GMT

Hello,

Are you implementing a router device, or a coordinator? The memory usage is dependent on this.

Some links that may be helpful regarding memory layout and configuration:

Layout: https://infocenter.nordicsemi.com/topic/sdk_tz_v3.1.0/zigbee_hw_and_mem.html

Configuration: https://infocenter.nordicsemi.com/topic/sdk_tz_v3.1.0/zigbee_mem_cfg_ram_feature.html

RE: Zigbee maximum device number

Edvin — Fri, 17 Apr 2020 10:59:22 GMT

Hello,

Sorry. I have not received any response. I have pinged the internal ticket. I'll keep this ticket open until I receive a response from the Zigbee team. I am sorry for the delay.

Best regards,

Edvin

RE: Zigbee maximum device number

abe — Tue, 07 Apr 2020 16:13:00 GMT

Have you any further new about?

RE: Zigbee maximum device number

abe — Fri, 03 Apr 2020 09:27:15 GMT

Hello Edvin
Thanks for answer, for further requests I will wait the info about the maximum # nodes can stored.

RE: Zigbee maximum device number

Edvin — Fri, 03 Apr 2020 08:40:44 GMT

Hello Abele,

I had to forward this question to our Zigbee team. I should have noticed you, but I haven't received any response yet.

Just some background:

I believe (waiting for confirmation) that this is stored similarly to FDS, so it will not be a specific flash address containing the addresses and routing tables for each node. It is most likely a dynamic handling of this data.

I see that on the nRF52840 there are some data stored in two locations:

One chunk on 0x000F7000 and one chunk on 0x000FB000. Do you need more information regarding the address than this? If so, what?

I am waiting for an answer regarding the number of nodes that can be stored.