Dedicated GDB windows

Hi,
I am trying to create a gdb layout for ecb which worked well so far via the graphical way.
The buffers are configured with:
(require 'ecb)

(defecb-window-dedicator-to-ecb-buffer ecb-set-gdb-gud-buffer "*gud*" nil "gdb-gud"
									   (switch-to-buffer gud-comint-buffer)
									   (set-window-dedicated-p (selected-window) nil))

(defecb-window-dedicator-to-ecb-buffer ecb-set-gdb-io-buffer "*input/output of *" nil "gdb-io"
									   (switch-to-buffer (gdb-get-buffer-create 'gdb-inferior-io))
									   (set-window-dedicated-p (selected-window) nil))

(defecb-window-dedicator-to-ecb-buffer ecb-set-gdb-disas-buffer "*disassembly of *" nil "gdb-disas"
									   (switch-to-buffer (gdb-get-buffer-create 'gdb-disassembly-buffer))
									   (set-window-dedicated-p (selected-window) nil))

(defecb-window-dedicator-to-ecb-buffer ecb-set-gdb-vars-buffer "*locals of *" nil "gdb-vars"
									   (switch-to-buffer (gdb-get-buffer-create 'gdb-locals-buffer))
									   (set-window-dedicated-p (selected-window) nil))

(defecb-window-dedicator-to-ecb-buffer ecb-set-gdb-breaks-buffer "*breakpoints of *" nil "gdb-breaks"
									   (switch-to-buffer (gdb-get-buffer-create 'gdb-breakpoints-buffer))
									   (set-window-dedicated-p (selected-window) nil))

(defecb-window-dedicator-to-ecb-buffer ecb-set-gdb-stack-buffer "*stack frames of *" nil "gdb-stacks"
									   (switch-to-buffer (gdb-get-buffer-create 'gdb-stack-buffer))
									   (set-window-dedicated-p (selected-window) nil))

(defun ecb-mps-activate ()
  (interactive)
  (gdb "arm-none-eabi-gdb -i=mi")
  (find-file "~/.emacs")
  (ecb-layout-switch "jg-arm")
  (ecb-activate))

(provide 'ecb-mps)

Contents are displayed right, but when a new window is created it only works when no gud action was done. After a "step" helm is not splitting the main edit window, but taking a gdb window.
Is there a way to prevent this?

Kind Regards
Johannes Goslar
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