[CYBT-343026-01] Regarding setting method of Tx_Power value of BLE/BDR/EDR

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YoJa_3107936
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Hi everyone

Regarding setting method of Tx_Power value of BLE / BDR / EDR.

If we refer to the following site and set Tx_pwer (as datasheet), then we can get below output value.

Configuring Transmit (Tx) Power on CYW20706 Chip - KBA228573

Is the below understanding correct?

BDR / EDR + 12dBm setting → BDR + 12dBm (typ) / EDR + 9dBm (typ) (Can get the output)

BLE + 8dBm setting → BLE + 9dBm (max) (Can get the output)

BTW, check the following information.

The link below is currently inaccessible.

https://community.cypress.com/community/wiced-studio-blueooth/wiced-studio-bluetooth-forums/blog/201...

Have you changed to the following site?

https://community.cypress.com/docs/DOC-18312

Thanks

Yang

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1 Solution
SheetalJ
Moderator
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First comment on KBA 750 replies posted 500 likes received

Hi Yang,

  1. Please use +8dBm, as the API recommended. If you use +12dBm, the output power is possible to be larger than 9dBm.
  2. It depends on the configuration of CGS file. Default should be the maximum output power if you don't set any power using API.

View solution in original post

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4 Replies
SheetalJ
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First comment on KBA 750 replies posted 500 likes received

Hi Yang,

I will check the issue regarding link https://community.cypress.com/community/wiced-studio-blueooth/wiced-studio-bluetooth-forums/blog/201... . Thanks for pointing it out.!

Also, I do not actually understand your query. As mentioned in Configuring Transmit (Tx) Power on CYW20706 Chip - KBA228573, the maximum possible Tx power is +12 dBm for BR/EDR applications and +9dBm for BLE applications.

Would you please elaborate?

YoJa_3107936
Level 5
Level 5
Distributor - Macnica (Japan)
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Hi Sheetal,

For BLE, if I set + 8dBm , then I can get output + 9dBm (max) .

Is it correct?

Use below function.wiced_result_t wiced_bt_dev_set_adv_tx_power( int power );

For BDR / EDR, if I set + 12dBm , then I can get output BDR + 12dBm (typ) / EDR + 9dBm (typ).

Is it correct?

Use below function.

wiced_result_t wiced_bt_dev_set_tx_power( wiced_bt_device_address_t bd_addr , int power );

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Regarding broken link, please find the article at link: Configuring Transmit (Tx) power on the CYW20706

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SheetalJ
Moderator
Moderator
Moderator
First comment on KBA 750 replies posted 500 likes received

Hi Yang,

  1. Please use +8dBm, as the API recommended. If you use +12dBm, the output power is possible to be larger than 9dBm.
  2. It depends on the configuration of CGS file. Default should be the maximum output power if you don't set any power using API.
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