diff --git a/boards/airmind/mindpx-v2/nuttx-config/nsh/defconfig b/boards/airmind/mindpx-v2/nuttx-config/nsh/defconfig
index a89f016ff8..8199ad51fe 100644
--- a/boards/airmind/mindpx-v2/nuttx-config/nsh/defconfig
+++ b/boards/airmind/mindpx-v2/nuttx-config/nsh/defconfig
@@ -73,6 +73,7 @@ CONFIG_IDLETHREAD_STACKSIZE=750
 CONFIG_LIBC_FLOATINGPOINT=y
 CONFIG_LIBC_LONG_LONG=y
 CONFIG_LIBC_STRERROR=y
+CONFIG_MAX_TASKS=64
 CONFIG_MAX_WDOGPARMS=2
 CONFIG_MEMSET_64BIT=y
 CONFIG_MEMSET_OPTSPEED=y
diff --git a/boards/av/x-v1/nuttx-config/nsh/defconfig b/boards/av/x-v1/nuttx-config/nsh/defconfig
index d8ad4f137a..9e472351c8 100644
--- a/boards/av/x-v1/nuttx-config/nsh/defconfig
+++ b/boards/av/x-v1/nuttx-config/nsh/defconfig
@@ -87,6 +87,7 @@ CONFIG_IOB_NBUFFERS=24
 CONFIG_IOB_THROTTLE=0
 CONFIG_LIBC_LONG_LONG=y
 CONFIG_LIBC_STRERROR=y
+CONFIG_MAX_TASKS=64
 CONFIG_MAX_WDOGPARMS=2
 CONFIG_MEMSET_64BIT=y
 CONFIG_MEMSET_OPTSPEED=y
diff --git a/boards/nxp/fmuk66-v3/nuttx-config/nsh/defconfig b/boards/nxp/fmuk66-v3/nuttx-config/nsh/defconfig
index 29dac16518..9e1c7707bf 100644
--- a/boards/nxp/fmuk66-v3/nuttx-config/nsh/defconfig
+++ b/boards/nxp/fmuk66-v3/nuttx-config/nsh/defconfig
@@ -95,6 +95,7 @@ CONFIG_LIBC_FLOATINGPOINT=y
 CONFIG_LIBC_STRERROR=y
 CONFIG_LPUART0_BAUD=57600
 CONFIG_LPUART0_SERIAL_CONSOLE=y
+CONFIG_MAX_TASKS=64
 CONFIG_MAX_WDOGPARMS=2
 CONFIG_MEMSET_64BIT=y
 CONFIG_MEMSET_OPTSPEED=y
diff --git a/boards/px4/fmu-v2/nuttx-config/nsh/defconfig b/boards/px4/fmu-v2/nuttx-config/nsh/defconfig
index cf256d4a5f..8a51a5a869 100644
--- a/boards/px4/fmu-v2/nuttx-config/nsh/defconfig
+++ b/boards/px4/fmu-v2/nuttx-config/nsh/defconfig
@@ -73,6 +73,7 @@ CONFIG_IDLETHREAD_STACKSIZE=750
 CONFIG_LIBC_FLOATINGPOINT=y
 CONFIG_LIBC_LONG_LONG=y
 CONFIG_LIBC_STRERROR=y
+CONFIG_MAX_TASKS=64
 CONFIG_MAX_WDOGPARMS=2
 CONFIG_MEMSET_64BIT=y
 CONFIG_MEMSET_OPTSPEED=y
diff --git a/boards/px4/fmu-v3/nuttx-config/nsh/defconfig b/boards/px4/fmu-v3/nuttx-config/nsh/defconfig
index cf256d4a5f..8a51a5a869 100644
--- a/boards/px4/fmu-v3/nuttx-config/nsh/defconfig
+++ b/boards/px4/fmu-v3/nuttx-config/nsh/defconfig
@@ -73,6 +73,7 @@ CONFIG_IDLETHREAD_STACKSIZE=750
 CONFIG_LIBC_FLOATINGPOINT=y
 CONFIG_LIBC_LONG_LONG=y
 CONFIG_LIBC_STRERROR=y
+CONFIG_MAX_TASKS=64
 CONFIG_MAX_WDOGPARMS=2
 CONFIG_MEMSET_64BIT=y
 CONFIG_MEMSET_OPTSPEED=y
diff --git a/boards/px4/fmu-v4/nuttx-config/nsh/defconfig b/boards/px4/fmu-v4/nuttx-config/nsh/defconfig
index c7136768bf..e38ad60ec5 100644
--- a/boards/px4/fmu-v4/nuttx-config/nsh/defconfig
+++ b/boards/px4/fmu-v4/nuttx-config/nsh/defconfig
@@ -73,6 +73,7 @@ CONFIG_IDLETHREAD_STACKSIZE=750
 CONFIG_LIBC_FLOATINGPOINT=y
 CONFIG_LIBC_LONG_LONG=y
 CONFIG_LIBC_STRERROR=y
+CONFIG_MAX_TASKS=64
 CONFIG_MAX_WDOGPARMS=2
 CONFIG_MEMSET_64BIT=y
 CONFIG_MEMSET_OPTSPEED=y
diff --git a/boards/px4/fmu-v4/nuttx-config/stackcheck/defconfig b/boards/px4/fmu-v4/nuttx-config/stackcheck/defconfig
index d481ba23ca..2791f26898 100644
--- a/boards/px4/fmu-v4/nuttx-config/stackcheck/defconfig
+++ b/boards/px4/fmu-v4/nuttx-config/stackcheck/defconfig
@@ -74,6 +74,7 @@ CONFIG_IDLETHREAD_STACKSIZE=750
 CONFIG_LIBC_FLOATINGPOINT=y
 CONFIG_LIBC_LONG_LONG=y
 CONFIG_LIBC_STRERROR=y
+CONFIG_MAX_TASKS=64
 CONFIG_MAX_WDOGPARMS=2
 CONFIG_MEMSET_64BIT=y
 CONFIG_MEMSET_OPTSPEED=y
@@ -226,9 +227,9 @@ CONFIG_USART2_TXBUFSIZE=1100
 CONFIG_USART3_BAUD=57600
 CONFIG_USART3_IFLOWCONTROL=y
 CONFIG_USART3_OFLOWCONTROL=y
-CONFIG_USART3_RXBUFSIZE=300
+CONFIG_USART3_RXBUFSIZE=1200
 CONFIG_USART3_RXDMA=y
-CONFIG_USART3_TXBUFSIZE=600
+CONFIG_USART3_TXBUFSIZE=900
 CONFIG_USART6_BAUD=57600
 CONFIG_USART6_RXBUFSIZE=300
 CONFIG_USART6_RXDMA=y
diff --git a/boards/px4/fmu-v4pro/nuttx-config/nsh/defconfig b/boards/px4/fmu-v4pro/nuttx-config/nsh/defconfig
index 4a5c792f6b..4d91198259 100644
--- a/boards/px4/fmu-v4pro/nuttx-config/nsh/defconfig
+++ b/boards/px4/fmu-v4pro/nuttx-config/nsh/defconfig
@@ -73,6 +73,7 @@ CONFIG_IDLETHREAD_STACKSIZE=750
 CONFIG_LIBC_FLOATINGPOINT=y
 CONFIG_LIBC_LONG_LONG=y
 CONFIG_LIBC_STRERROR=y
+CONFIG_MAX_TASKS=64
 CONFIG_MAX_WDOGPARMS=2
 CONFIG_MEMSET_64BIT=y
 CONFIG_MEMSET_OPTSPEED=y
diff --git a/boards/px4/fmu-v5/nuttx-config/nsh/defconfig b/boards/px4/fmu-v5/nuttx-config/nsh/defconfig
index f15c8ada53..d9012eac45 100644
--- a/boards/px4/fmu-v5/nuttx-config/nsh/defconfig
+++ b/boards/px4/fmu-v5/nuttx-config/nsh/defconfig
@@ -78,6 +78,7 @@ CONFIG_IDLETHREAD_STACKSIZE=750
 CONFIG_LIBC_FLOATINGPOINT=y
 CONFIG_LIBC_LONG_LONG=y
 CONFIG_LIBC_STRERROR=y
+CONFIG_MAX_TASKS=64
 CONFIG_MAX_WDOGPARMS=2
 CONFIG_MEMSET_64BIT=y
 CONFIG_MEMSET_OPTSPEED=y
diff --git a/boards/px4/fmu-v5/nuttx-config/stackcheck/defconfig b/boards/px4/fmu-v5/nuttx-config/stackcheck/defconfig
index 5db40b8e53..9b4e9b4690 100644
--- a/boards/px4/fmu-v5/nuttx-config/stackcheck/defconfig
+++ b/boards/px4/fmu-v5/nuttx-config/stackcheck/defconfig
@@ -30,6 +30,7 @@ CONFIG_ARMV7M_ICACHE=y
 CONFIG_ARMV7M_MEMCPY=y
 CONFIG_ARMV7M_STACKCHECK=y
 CONFIG_ARMV7M_USEBASEPRI=y
+CONFIG_BOARDCTL_FINALINIT=y
 CONFIG_BOARDCTL_RESET=y
 CONFIG_BOARD_CRASHDUMP=y
 CONFIG_BOARD_LOOPSPERMSEC=22114
@@ -78,6 +79,7 @@ CONFIG_IDLETHREAD_STACKSIZE=750
 CONFIG_LIBC_FLOATINGPOINT=y
 CONFIG_LIBC_LONG_LONG=y
 CONFIG_LIBC_STRERROR=y
+CONFIG_MAX_TASKS=64
 CONFIG_MAX_WDOGPARMS=2
 CONFIG_MEMSET_64BIT=y
 CONFIG_MEMSET_OPTSPEED=y