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SuSo_1702516
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Please kindly guide us how to enter PDS, ePDS and HID-off low power mode in CYW89820 Modus +BTSDK1.4 environment using CYW989820EVB-01.

CYW89820 Datasheet specified 3 low power (sleep) mode as PDS, ePDS and HID-off (page6 section 2.3 Power Modes, section 10.2.8 Current Consumption) but we don’t have information how to enter those modes.

1. PDS, ePDS: No information available how to enter in CYw89820 Modus environment – Modus toolbox, community, documentation and sample app.

2. HID-off: Can find the HID-off API only in the API reference document in "WICED® BT SDK v1.4 - API Reference Guide" at "WICED Sleep Configuration" but calling the "wiced_sleep_enter_hid_off" API using “Low Power” sample app of CYW920820EVB-02 package resulted about 1mA which is much larger number than datasheet (1.75uA)

We’ve referred BT 208XX SDK because this supports CYW989820EVAL-01 kits as seen in Code-Examples-BT-SDK-for-ModusToolbox/208XX_readme.txt.

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SheetalJ
Moderator
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Moderator

Hi SuSo_1702516​,

Please refer CYW208xx low power guidelines appnote- https://www.cypress.com/file/465226/download

Hopefully this answers all your queries!

View solution in original post

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SheetalJ
Moderator
Moderator 750 replies posted 500 likes received 500 replies posted
Moderator

Hi SuSo_1702516​,

Please refer CYW208xx low power guidelines appnote- https://www.cypress.com/file/465226/download

Hopefully this answers all your queries!

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SuSo_1702516
Level 1
50 sign-ins 25 sign-ins 10 questions asked
Level 1

Hi Sheetal,

The appnote is also referring "Low Power" sample app in the ModusTool for CYW20820. I already tried this and found CYW920819EVAL-02 seems to work following the appnote but CYW989820EVAL-01 consumes about 1mA with same code at HID-off.

SheetalJ
Moderator
Moderator 750 replies posted 500 likes received 500 replies posted
Moderator

I have reported this issue internally and our software team is tracking this actively. It will be fixed in next SDK version.

Thanks.

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