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maku_2263101
Level 3
Level 3
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Hi,

Can you please provide the command to set BLE TX Power on CYW43455 module?

When we ran below command for reading the LE_Read_Advertising_Channel_Tx_Power we are observing 12dbm.

hcitool -i hci0 cmd 0x08 0x0007

< HCI Command: ogf 0x08, ocf 0x0007, plen 0

> HCI Event: 0x0e plen 5

  01 07 20 00 0C

btmon output:

< HCI Command: LE Read Advertising... (0x08|0x0007) plen 0       #1 [hci0] 32.775675

> HCI Event: Command Complete (0x0e) plen 5                              #2 [hci0] 32.776624

      LE Read Advertising Channel TX Power (0x08|0x0007) ncmd 1

        Status: Success (0x00)

        TX power: 12 dbm (0x0c)

Can we decrease the Tx Power while advertising the Data ?

CYW4343W HCI Vendor Specific Command to set BLE TX Power

In above link SheetalJ_96​​ mentioned below information:

"The output power level for BLE is fixed; It is set to 4dBm for adv packets."

But we are observing 12 dbm. Is there any way to decrease the TX Power ?

GauravS_31SheetalJ_96DheerajP_41VictorZ_46VinayakS_26

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1 Solution

Hi,

Sorry for the delayed response.

To modify the Tx Power of this chip, you will have to open a Salesforce case (Login | Salesforce​ ), and need to attach a request document (CRRQ) with all the Tx power requirements filled. Our Engineers will tune the power based on the document in the FW files and release it to you.

Thanks,

-Dheeraj

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