Gazell CONFIG_GZLL_TX_STATISTICS

[Bryan]

Windows 10

NCS 2.0.0

We have run the Gazell samples successfully on the nRF52833 DKs.   In these examples the CONFIG_GZLL_TX_STATISTICS is enabled (gzll_ack_payload_device\build\zephyr\.config).

#
# Gazell Link Layer sample: Device
#
CONFIG_GZLL_TX_STATISTICS=y
# end of Gazell Link Layer sample: Device

We are now integrating Gazell into our custom board, but CONFIG_GZLL_TX_STATISTICS isn't defined by default.

We assumed this would be done by adding CONFIG_GZLL_TX_STATISTICS=y to prj.conf.  However, the compiler hates this.  What are we missing?

Here is the contents of our prj.conf

# Enable the I2C driver

CONFIG_I2C=y

#Enable GPIO

CONFIG_GPIO=y

# Enable floating point format specifiers

CONFIG_CBPRINTF_FP_SUPPORT=y

CONFIG_CONSOLE=y

CONFIG_UART_CONSOLE=y

CONFIG_GZLL=y

CONFIG_GAZELL=y

[Bryan]

Sigurd,

We understand that KConfig for gzll_ack_payload_host and gzll_ack_payload_device are only valid for those samples. 

Our question is simply how to enable in our project? 

KConfig?  Modify prj.conf?

[Sigurd]

Hi,

Bryan said:

Our question is simply how to enable in our project? 

So you are building for a different sample / your custom application. In that case, add the Kconfig file to your sample/app. 

[Bryan]

Sigurd,

We do not understand what "add the Kconfig file to your sample/app" means. 

If we run KConfig in the gzll_ack_payload_host example, "Packet transaction statistics" is checked.  The gzll_ack_payload_host\build\zephyr\.config  has CONFIG_GZLL_TX_STATISTICS=y.  This is what we expected.  

However, in our custom app, "Packet transaction statistics" is not available in KConfig.

The NCS learning curve is steep and we are simply not understanding.  Can you provide an example of what you mean?

[Sigurd]

Hi,

This config something that is implemented and used only in the samples gzll_ack_payload_host and gzll_ack_payload_device. 

See this:

https://github.com/nrfconnect/sdk-nrf/blob/main/samples/gazell/gzll_ack_payload_host/src/main.c#L116:L140

https://github.com/nrfconnect/sdk-nrf/blob/main/samples/gazell/gzll_ack_payload_host/src/main.c#L34:L38

https://github.com/nrfconnect/sdk-nrf/blob/main/samples/gazell/gzll_ack_payload_host/src/main.c#L87:L94

If you copied this code to your app, you should create Kconfig file in your app folder similar to this: https://github.com/nrfconnect/sdk-nrf/blob/v2.1.0/samples/gazell/gzll_ack_payload_host/Kconfig

[Bryan]

That was what we needed.  Thanks!