CC2530: At initialization, it takes several seconds for the Scene_Init to complete the initialization

Cherry Zhou

Part Number: CC2530
Other Parts Discussed in Thread: Z-STACK

Hi team,

Here's an issue from the customer may need your help:

During debug, in the zclGeneral_ScenesInit function, a single-step debug takes a lot of time to execute the ScenesRestoreFromNV in ScenesInit.

When reading ZCD_NV_SCENE_TABLE in zclGeneral_ScenesRestoreFromNV, the value read is 30, and 30 for loops are performed below. The device has not sent the Add Scene Cmd to the device while it is on the web, it should not write data to the NV at this address, and the customer does not have the same address as this. (Stack version: Home 1.2.2a)

The customer would like to know what's the possible reason for that.

Could you help check this case? Thanks

Best Regards,

Cherry

over 3 years ago

0 YiKai Chen over 3 years ago

Guru 735685 points

I test this with SampleSwitch on my CC2530DK and I don't see such delay. Do you test this with original Z-Stack example?

0 Ryan Brown1 over 3 years ago

TI__Guru**** 218837 points

Hi Cherry,

This reminds me of item 20 from the Known Issues and Proposed Fixes E2E thread (Large number of Address Manager Entries Results in Long ZC Startup Times). Scene tables, much like address tables, are initialized even if not used. Perhaps the customer could consider reducing the maximum number of entries in the Scene table, ZCL_GEN_MAX_SCENES. Otherwise they will need to further optimize the initialization and osal_nv code to meet their needs.

Regards,
Ryan

0 Cherry Zhou over 3 years ago in reply to Ryan Brown1

TI__Mastermind 22235 points

Hi YK,

Thanks for your help on e2echina forum.

Hi Ryan,

Thanks for your help.

Although the scene table is initialized without the use of scene, why the value read from the NV in zclGeneral_ScenesRestoreFromNV is 30, in general, the value read without the use should also be 0.

Thanks and regards,

Cherry

0 YiKai Chen over 3 years ago in reply to Cherry Zhou

Guru 735685 points

Try to clear scene table when doing factory reset on device.

0 Ryan Brown1 over 3 years ago in reply to Cherry Zhou

TI__Guru**** 218837 points

zclGeneral_ScenesInitNV should set hdr.numRecs to zero through zclGeneral_ScenesSetDefaultNV so long as the zcl_nv_item_init of ZCD_NV_SCENE_TABLE is successful. The only way this changes is if zclGeneral_ScenesWriteNV is called by zclGeneral_AddScene/RemoveScene/RemoveAllScenes/ScenesSave. The customer would need to closely monitor where and when the nvGenScenesHdr_t numRecs attribute is altered.

Regards,
Ryan

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CC2530: At initialization, it takes several seconds for the Scene_Init to complete the initialization