How to change Output Radio Amplifier Power and then test the byte error, package error of nrf5340?

[Cong Ma]

Hello, I have managed to get two NRF5340s linked and measured their throughput. Now I need to change their Output Radio Amplifier Power to test again.  And then I also need to test the byte error and package error of the nrf5340.How can I do this?

many thanks.

[Jared]

Hi there,

Are you using the BLE or the radio directly?

Have you seen our radio test example?

regards

Jared

[Cong Ma]

I use the bluetooth/thoughput sample. Do I need to add or change some codes?

[Jared]

Hi,

Yeah, that is a good sample. See this thread on how to change the TX power.

regards

Jared 

[Cong Ma]

Hi

Thank you for the reply. I have looked at the link and I referenced this example samples/bluetooth/hci_pwr_ctrl. Now I have added the set_tx_power() function to the  bluetooth/thoughput sample. then some error happen.

I type “Set Tx power err:Neg5dBm reason 0xFB” in the terminal 

then

Set-Variable : Cannot find a position form parameter that accepts the actual parameter "err:Neg5dBm".
Location Line:1 Character: 1
+ Set Tx power err:Neg5dBm reason 0xFB
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidArgument: (:) [Set-Variable], ParameterBindingException
+ FullyQualifiedErrorId : PositionalParameterNotFound,Microsoft.PowerShell.Commands.SetVariableCommand

I cant modify the TX POWER......

Would you happen to know what might be happening?

Thanks in advance.

[Cong Ma]

Hello， I have tried many times and the problem is still not solved

[Cong Ma]

Hi, I typed this code directly into hci_pwr_ctrl sample and then got this error.

Sorry for the Chinese display here, it means 

Set-Variable : Cannot find a positional parameter that accepts the actual parameter "err:".
Location Line:1 Character: 1
+ Set Tx power err: Neg5dBm reason 0xFB
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidArgument: (:) [Set-Variable], ParameterBindingException
+ FullyQualifiedErrorId : PositionalParameterNotFound,Microsoft.PowerShell.Commands.SetVariableCommand

Do you know how to solve this problem?

Many thanks 

Cong

[Jared]

Hi,

What parameters are you passing to set_tx_power()? Looks like it's complaining on that. 

regards

Jared 

[Cong Ma]

I added these two pieces of code directly to the sample and entered "Set Tx power err: Neg5dBm reason 0xFB" in the terminal then the above error appeared.

I dont know what to do then 

Many thanks 

Cong 

[Cong Ma]

I wanted to test the Bluetooth rate again with -5dBm power. But I don't know how to use this SET_TX _POWER function. Everything got confused when I added him to the sammple. I added it after the adv_start and disconnected functions.

this is com listener looks like. I dont know why.

Many thanks 

Cong 

[Jared]

Hi there,

You need to debug your application and see what is actually passed to set_tx_power() when you run the program. In the HCI_power_control example you'll see that the handle type is passed as first, the handle itself as second, and third the power level which should be a int8_t. 

For example:

Cong Ma said:

this is com listener looks like. I dont know why.

Also, this looks like an entirely new error. Was this first introduced when you added set_tx_power()? 

regards

Jared

[Cong Ma]

This happens on the com listener every time I add set_tx_power(), I use this board as the master board for bluetooth communication and then it appears to connect and then display some parameters and then disconnect.

Many thanks 

Cong