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MCUXpresso_LPC55S69/boards/lpcxpresso55s69/driver_examples/wwdt/cm33_core0
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Yilin Sun 6e8d03ec0a Updated to SDK v2.15.000 
Signed-off-by: Yilin Sun <imi415@imi.moe>
 		2024-04-12 21:21:49 +08:00
..
armgcc Updated to SDK v2.15.000 2024-04-12 21:21:49 +08:00
board.c Stock SDK v2.11.0 2022-04-08 22:42:47 +08:00
board.h Stock SDK v2.11.0 2022-04-08 22:42:47 +08:00
clock_config.c Stock SDK v2.11.0 2022-04-08 22:42:47 +08:00
clock_config.h Stock SDK v2.11.0 2022-04-08 22:42:47 +08:00
pin_mux.c Stock SDK v2.11.0 2022-04-08 22:42:47 +08:00
pin_mux.h Stock SDK v2.11.0 2022-04-08 22:42:47 +08:00
readme.md Updated to SDK v2.15.000 2024-04-12 21:21:49 +08:00
wwdt.c Updated to SDK v2.15.000 2024-04-12 21:21:49 +08:00
wwdt_example_v3_14.xml Updated to SDK v2.15.000 2024-04-12 21:21:49 +08:00

readme.md

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.

SDK version

  • Version: 2.15.000

Toolchain supported

  • IAR embedded Workbench 9.40.1
  • Keil MDK 5.38.1
  • GCC ARM Embedded 12.2
  • MCUXpresso 11.8.0

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

  1. Connect a micro USB cable between the host PC and the LPC-Link USB port (P6) on the target board.
  2. Open a serial terminal with the following settings:
    • 115200 baud rate
    • 8 data bits
    • No parity
    • One stop bit
    • No flow control
  3. Download the program to the target board.
  4. 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!