I need to print the RSSI level in RTT but i couldn't do. Somebody can help me?

[Pablo]

I try to print the RSSI level but i couldn't do. I use nRF51 DK and soft device S130.

This is the line that i just write:

SEGGER_RTT_printf("RSSI: %d\n",p_gap_evt->params.rssi);

[TomWS]

I believe you need terminal number as the first argument to the SEGGER_RTT_printf() function. So, in your case, it would look like:

SEGGER_RTT_printf(0,"RSSI: %d\n",p_gap_evt->params.rssi);

As to whether the params actual contain the rssi requires that the extend information is contained in the packet.

Tom

[Pablo]

Hello Tom,

I write what you told me, but i still have problems. I show you an image in a new answer.

[Pablo]

Tom, here you can saw the problems that uVision show me:

[TomWS]

Sorry, I didn't realize you were using BLE softdevice so I can't comment on the data fields. Also, I don't use that IDE so I'm not sure about the messages. However, given that the message is a warning that the 'expression has no effect' tells me that the SEGGER_... function has been declared as an empty function (doesn't do anything or take any arguments) meaning that you may not have set up the correct options to use the SEGGER print function.

Hopefully someone can guide you on this.

Tom

[bjorn-spockeli]

@Pablo: Have you tried using the NRF_LOG_INFO() Macro instead? Make sure that you have NRF_LOG_BACKEND_SERIAL_USES_RTT checked in the sdk_config.h configuration wizard.