niobe4_series_wwdt_example#
Overview#
The WWDT Example project is to demonstrate usage of the KSDK wdog driver. In this example,quick test to show user how to feed watch dog. User need to feed the watch dog in time before it warning or timeout interrupt. The WINDOW register determines the highest TV value allowed when a watchdog feed is performed.
Supported Boards#
FRDM-MCXN947
Hardware requirements
Type-C USB cable
FRDM-MCXN947 board
Personal Computer
Board settings
Prepare the Demo
Connect a type-c USB cable between the host PC and the MCU-Link USB port (J17) on the target board.
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
Running the demo
If the demo run successfully, you will see the red LED blink every two seconds. The log below shows example output of the WWDT driver demo in the terminal window: — Time out reset test start — Watchdog reset occurred
— Window mode refresh test start— WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed!
FRDM-MCXN947T
Hardware requirements
Type-C USB cable
FRDM-MCXN947T board
Personal Computer
Board settings
Prepare the Demo
Connect a type-c USB cable between the host PC and the MCU-Link USB port (J17) on the target board.
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
Running the demo
If the demo run successfully, you will see the red LED blink every two seconds. The log below shows example output of the WWDT driver demo in the terminal window: — Time out reset test start — Watchdog reset occurred
— Window mode refresh test start— WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed!
LPCXpresso55S06
Hardware requirements
Micro USB cable
LPCXpresso55S06 board
Personal Computer
Board settings
Please note that, if you run the demo with the J10 unconnected, download maybe failed in the second time, please connect the J10 while debugging, then the CPU can be booted from ROM, otherwise, with the WWDT running, downloading maybe failed.
Prepare the Demo
Connect a micro USB cable between the host PC and the LPC-Link USB port (J1) on the target board.
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
Running the demo
If the demo run successfully, you will see the red LED blink every two seconds. The log below shows example output of the WWDT driver demo in the terminal window:
— Time out reset test start — Watchdog reset occurred
— Window mode refresh test start—
WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed!
LPCXpresso55S16
Hardware requirements
Micro USB cable
LPCXpresso55S16 board
Personal Computer
Board settings
The jumper setting: Default jumpers configuration does not work, you will need to add JP20 and JP21 (JP22 optional for ADC use)
Please note that, if you run the demo with the J10 unconnected, download maybe failed in the second time, please connect the J10 while debugging, then the CPU can be booted from ROM, otherwise, with the WWDT running, downloading maybe failed.
Prepare the Demo
Connect a micro USB cable between the host PC and the LPC-Link USB port (J1) on the target board.
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
Running the demo
If the demo run successfully, you will see the red LED blink every two seconds. The log below shows example output of the WWDT driver demo in the terminal window:
— Time out reset test start — Watchdog reset occurred
— Window mode refresh test start— WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed!
LPCXpresso55S28
Hardware requirements
Micro USB cable
LPCXpresso55S28 board
Personal Computer
Board settings
No special settings are required.
Please note that, if you run the demo with the J10 unconnected, download maybe failed in the second time, please connect the J10 while debugging, then the CPU can be booted from ROM, otherwise, with the WWDT running, downloading maybe failed.
Prepare the Demo
Note: MCUXpresso IDE project default debug console is semihost
Connect a micro USB cable between the host PC and the LPC-Link USB port (P6) on the target board.
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
Running the demo
If the demo run successfully, you will see the red LED blink every two seconds. The log below shows example output of the WWDT driver demo in the terminal window:
— Time out reset test start — Watchdog reset occurred
— Window mode refresh test start—
WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed!
LPCXpresso55S36
Hardware requirements
Micro USB cable
LPCXpresso55S36 board
Personal Computer
Board settings
Prepare the Demo
Connect a micro USB cable between the host PC and the LPC-Link USB port (J1) on the target board.
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
Running the demo
If the demo run successfully, you will see the red LED blink every two seconds. The log below shows example output of the WWDT driver demo in the terminal window: — Time out reset test start — Watchdog reset occurred
— Window mode refresh test start— WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed!
LPCXpresso55S69
Hardware requirements
Micro USB cable
LPCXpresso55s69 board
Personal Computer
Board settings
No special settings are required.
Please note that, if you run the demo with the J10 unconnected, download maybe failed in the second time, please connect the J10 while debugging, then the CPU can be booted from ROM, otherwise, with the WWDT running, downloading maybe failed.
Prepare the Demo
Note: MCUXpresso IDE project default debug console is semihost
Connect a micro USB cable between the host PC and the LPC-Link USB port (P6) on the target board.
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
Running the demo
If the demo run successfully, you will see the red LED blink every two seconds. The log below shows example output of the WWDT driver demo in the terminal window:
— Time out reset test start — Watchdog reset occurred
— Window mode refresh test start — WDOG has been refreshed! WDOG has been refreshed! WDOG has been refreshed! WDOG has been refreshed! WDOG has been refreshed! WDOG has been refreshed! WDOG has been refreshed! WDOG has been refreshed! WDOG has been refreshed! WDOG has been refreshed!
MCX-N5XX-EVK
Hardware requirements
Micro USB cable
MCX-N5XX-EVK board
Personal Computer
Board settings
Prepare the Demo
Connect a micro USB cable between the host PC and the MCU-Link USB port (J5) on the target board.
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
Running the demo
If the demo run successfully, you will see the red LED blink every two seconds. The log below shows example output of the WWDT driver demo in the terminal window: — Time out reset test start — Watchdog reset occurred
— Window mode refresh test start— WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed!
MCX-N9XX-EVK
Hardware requirements
Micro USB cable
MCX-N9XX-EVK board
Personal Computer
Board settings
Prepare the Demo
Connect a micro USB cable between the host PC and the MCU-Link USB port (J5) on the target board.
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
Running the demo
If the demo run successfully, you will see the red LED blink every two seconds. The log below shows example output of the WWDT driver demo in the terminal window: — Time out reset test start — Watchdog reset occurred
— Window mode refresh test start— WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed! WDOG has be refreshed!