Sunday, May 20th 2018, 7:54pm UTC+2

You are not logged in.

  • Login
  • Register

Dear visitor, welcome to SEGGER Forum. If this is your first visit here, please read the Help. It explains how this page works. You must be registered before you can use all the page's features. Please use the registration form, to register here or read more information about the registration process. If you are already registered, please login here.



Date of registration: Sep 11th 2017

Posts: 1


Monday, September 11th 2017, 11:25am

[SOLVED] RTT viewer multiple windows

It looks like system (laptop windows 7) is not supporting more than two windows of RTT viewer simultaneously. When I connect, third one, it disconnects, one of the two's.
Is there any way to connect four windows of RTT viewer simultaneously as in my case, there are four BLE devices who wants to communicate with each other and I need debugging?


Super Moderator

Date of registration: Jan 2nd 2017

Posts: 1,048


Wednesday, December 6th 2017, 10:29am


Sorry for the delay in response.
RTT only works over one RTT viewer simultaneously per J-Link. If you use more than one they will start "stealing" data from each other and none of the RTT Viewers will have a full data set.
So you need 4 J-Link devices to show 4 RTT Viewers for 4 target devices.

Best regards,
Please read the forum rules before posting: Forum Rules

Keep in mind, this is not a support forum. Its main purpose is user to user interaction.
Our engineers will try to answer your questions between their projects if possible but this can be delayed by longer periods of time.
Should you be entitled to support contact us per e-mail.
The following contact form can be used for this: