could not connect with RTT

[Satheeshkumar]

hi team,

i have tried to connect my device with RTT. i could not connect. i just followed the instruction as below link

devzone.nordicsemi.com/.../

if i insert the function( SEGGER_RTT_WriteString(0, "Hello World!\n"); ) in main function loop and also SEGGER_RTT_printf, there is no response from device after flash the hex file. if i comment the line of function of segger_RTT , it will work. bluetooth doesn't advertise , led doesn't blink.

please any only help i need to check my app in runtime trace.

thanks advance,

[Sigurd]

Hi,

What SDK version are you using? Did you use the SEGGER files linked to in the tutorial? It could be that you need to define NRF_LOG_USES_RTT = 1. See this post.

[rct42]

I take it you're using RTT without going through nrf_log? If so, have you initialised the RTT, i.e.,:

SEGGER_RTT_ConfigUpBuffer(0, NULL, NULL, 0, SEGGER_RTT_MODE_NO_BLOCK_TRIM);

It would also be a good idea to step into the SEGGER_RTT_* functions and check if they are actually being compiled in (otherwise, might need some other defines present).