CCS/LAUNCHXL-CC2640R2: [BLE5][CC2640R2] HCI_EXT_SetTxPowerCmd() could not work on BLE5 but BLE 4.2.

Ivan Jiang

Tool/software: Code Composer Studio

Dear Experts,

I encountered a problem when I used host test project (BLE 5_SDK2.2) to exam the HCI Extension Set Transmitter Power command on TI launchpad .
I tried to change the the Tx power from 0 d bm to 5 dbm by HCI_EXT_SetTxPowerCmd but it did not change.
Also, I used host test project which was based on BLE4.2(SDK2.2) and its result was positive.
This symptom also occurred no SDK 2.4( it was the latest version on TI website ).
Does HCI_EXT_SetTxPowerCmd work on BLE5.0?

I list test step as blow.

1. Send HCI_EXT_SetTxPowerCmd with 0 from Btool.
2. Send HCI_LE_TransmitterTestCmd.
3. Check the spectrum.
4. Send HCI_LE_Test_End
5. Send HCI_EXT_SetTxPowerCmd with 5 from Btool.
6. Send HCI_LE_TransmitterTestCmd.t
7. Check the spectrum and power did not change.

Could you please help me check?

over 5 years ago

0 Eirik V over 5 years ago

TI__Guru 56590 points

Hello Ivan,
Did you use the correct version of BTool for BLE5 stack?
Run the Run_BTool.bat in the ble5stack\btool when you start BTool for BLE5.

Can you show me the console print from BTool?

0 Ivan Jiang over 5 years ago in reply to Eirik V

Prodigy 150 points

Hi Eirik,

My btool version is 1.42.10 and its directory is "\simplelink_cc2640r2_sdk_2_20_00_49\tools\ble5stack\btool" .

By the way, I sent HCI_EXT_SetMaxDtmTxPowerCmd instead of HCI_EXT_SetTxPowerCmd and its result was positive.

<PIC: test steps >

BR,

Ivan

0 Ivan Jiang over 5 years ago in reply to Eirik V

Prodigy 150 points

Hi Eirik,

Is there any update ?

BR,
Ivan

0 Eirik V over 5 years ago in reply to Ivan Jiang

TI__Guru 56590 points

Hello Ivan,
For the HCI_LE_TransmitterTestCmd you need to use the HCI_EXT_SetMaxDtmTxPowerCmd.
For HCI_EXT commands you need to use the HCI_EXT_SetTxPowerCmd.

0 Ivan Jiang over 5 years ago in reply to Eirik V

Prodigy 150 points

Hi Eirik,

For the steps as below, could you please help me check why those commands could work on BLE 4.2 but BLE 5.0 ?
Is result of HCI_EXT_SetMaxDtmTxPowerCmd same as HCI_EXT_SetTxPowerCmd in terms of BLE behavior ?

test steps:
1. Send HCI_EXT_SetTxPowerCmd with 0 from Btool.
2. Send HCI_LE_TransmitterTestCmd.
3 Send HCI_LE_Test_End
4. Send HCI_EXT_SetTxPowerCmd with 5 from Btool.
5. Send HCI_LE_TransmitterTestCmd.t

BR,
Ivan

0 Eirik V over 5 years ago in reply to Ivan Jiang

TI__Guru 56590 points

Hello Ivan,
There is different implementations done in the link layer for BLE5 stack and BLE3 stack. For BLE5 use HCI_EXT_SetMaxDtmTxPowerCmd when you use HCI_LE_TransmitterTestCmd.

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CCS/LAUNCHXL-CC2640R2: [BLE5][CC2640R2] HCI_EXT_SetTxPowerCmd() could not work on BLE5 but BLE 4.2.