Technical Parameters of NRF52832-QFAA-R7 ble transmission.

[SaiTeja]

Hi, I are using BT832 module based on NRF52832-QFAA IC in an application. Please provide the following details regarding ble transmission of NRF52832-QFAA-R7  IC

1) modulation bandwidth , 2) frequency channels 3) data rate and 4) Tx Power

Can we change above parameters programatically? If yes, please tell how to change these values? If no, what are the default values of the parameters?

I am using nRF5_SDK_12.2.0

We need the information quickly, please respond as soon as possible.

Awaiting your reply. 

[Andreas]

Hi,

 

1. A bit vague description, can mean multiple things and different bandwidths are required for different standards. There are some parameters specified in the PS, if these are not what they want let me know. By modulation bandwidth I interpret you refer to the frequency deviation, which depends on the radio mode you are using.

2. nRF52832 supports 2360-2500 MHz. I do not know which protocols or channels you are using. If you are using BLE, you will by default be using all BLE channels from 2402 MHz to 2480 MHz (40 in total).

3. nRF52832 supports 1 Mbps and 2 Mbps data rates, in both BLE and nRF modes. Again, I do not know which ones you use, but if you are using BLE on SDK v12.2.0 there should only be support for 1 Mbps BLE

4. Whatever you have configured the chip to. You can find a list of possible TX power settings here.

 

Best regards,

Andreas

[SaiTeja]

Hi Andreas, 

 Thanks for your reply.

Can you tell which parameters are programmable and which parameters are factory set ?  

[Andreas]

Hi,

 

If you have not already, I think you need to go through the Radio section in the PS. The 4 parameters you mentioned in your first post are programmable, though with some modifications. I.e. you can change the settings, but you can not change what the settings do.

1. Modulation bandwidth depends on the MODE. Once you choose the mode though you can not change the modulation bandwidth explicitly.

2. Programmable, see FREQUENCY register.

3 Data rate depends on MODE. Once you choose the mode though you can not change the data rate explicitly.

4. Programmable, see the TXPOWER register.

Any parameters that are set in production (Nordic production) and thus should not be changed, are hidden to avoid them being tampered with.

 

Best regards,

Andreas

[awneil]

Andreas said:

you need to go through the Radio section in the PS.

Absolutely!

[SaiTeja]

Hi Andreas, 

You information is very helpful. Please tell where I can refer regarding bandwidth of the ble transmission.

[Andreas]

Hi,

 

If you are looking for the FSK modulation frequency, see this link, frequency deviation.

If you need the occupied bandwidth or channel bandwidth, that is different, but you will have to be more specific as there are multiple ways of defining and testing this.

 

Best regards,

Andreas