diff --git a/boards/arm/nucleo_h723zg/support/openocd.cfg b/boards/arm/nucleo_h723zg/support/openocd.cfg
index c70e4ae5478..fa8097598db 100644
--- a/boards/arm/nucleo_h723zg/support/openocd.cfg
+++ b/boards/arm/nucleo_h723zg/support/openocd.cfg
@@ -13,11 +13,12 @@ set BOARDNAME NUCLEO-H723ZG
 
 source [find target/stm32h7x.cfg]
 
+# Use connect_assert_srst here to be able to programm
+# even when core is in sleep mode
 reset_config srst_only srst_nogate connect_assert_srst
 
 $_CHIPNAME.cpu0 configure -event gdb-attach {
         echo "Debugger attaching: halting execution"
-        reset halt
         gdb_breakpoint_override hard
 }
 
@@ -25,3 +26,11 @@ $_CHIPNAME.cpu0 configure -event gdb-detach {
         echo "Debugger detaching: resuming execution"
         resume
 }
+
+# Due to the use of connect_assert_srst, running gdb requires
+# to reset halt just after openocd init.
+rename init old_init
+proc init {} {
+        old_init
+        reset halt
+}
diff --git a/boards/arm/nucleo_h745zi_q/support/openocd.cfg b/boards/arm/nucleo_h745zi_q/support/openocd.cfg
index 4f1ef697e3f..391d0d917a1 100644
--- a/boards/arm/nucleo_h745zi_q/support/openocd.cfg
+++ b/boards/arm/nucleo_h745zi_q/support/openocd.cfg
@@ -6,11 +6,12 @@
 
 source [find board/st_nucleo_h745zi.cfg]
 
+# Use connect_assert_srst here to be able to programm
+# even when core is in sleep mode
 reset_config srst_only srst_nogate connect_assert_srst
 
 $_CHIPNAME.cpu0 configure -event gdb-attach {
         echo "Debugger attaching: halting execution"
-        reset halt
         gdb_breakpoint_override hard
 }
 
@@ -18,3 +19,11 @@ $_CHIPNAME.cpu0 configure -event gdb-detach {
         echo "Debugger detaching: resuming execution"
         resume
 }
+
+# Due to the use of connect_assert_srst, running gdb requires
+# to reset halt just after openocd init.
+rename init old_init
+proc init {} {
+        old_init
+        reset halt
+}
diff --git a/boards/arm/stm32h747i_disco/support/openocd_stm32h747i_disco_m7.cfg b/boards/arm/stm32h747i_disco/support/openocd_stm32h747i_disco_m7.cfg
index efacb46ae9c..040feadc02e 100644
--- a/boards/arm/stm32h747i_disco/support/openocd_stm32h747i_disco_m7.cfg
+++ b/boards/arm/stm32h747i_disco/support/openocd_stm32h747i_disco_m7.cfg
@@ -5,11 +5,12 @@ transport select hla_swd
 
 source [find target/stm32h7x.cfg]
 
+# Use connect_assert_srst here to be able to programm
+# even when core is in sleep mode
 reset_config srst_only srst_nogate connect_assert_srst
 
 $_CHIPNAME.cpu0 configure -event gdb-attach {
         echo "Debugger attaching: halting execution"
-        reset halt
         gdb_breakpoint_override hard
 }
 
@@ -17,3 +18,11 @@ $_CHIPNAME.cpu0 configure -event gdb-detach {
         echo "Debugger detaching: resuming execution"
         resume
 }
+
+# Due to the use of connect_assert_srst, running gdb requires
+# to reset halt just after openocd init.
+rename init old_init
+proc init {} {
+        old_init
+        reset halt
+}