91 lines
3.0 KiB
Plaintext
91 lines
3.0 KiB
Plaintext
Overview
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========
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The RTWDOG Example project is to demonstrate usage of the KSDK rtwdog driver.
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In this example, fast testing is first implemented to test the rtwdog.
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After this, refreshing the watchdog in None-window mode and window mode is executed.
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Note rtwdog is disabled in SystemInit function which means rtwdog is disabled
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after chip emerges from reset.
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Toolchain supported
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===================
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- IAR embedded Workbench 9.30.1
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- Keil MDK 5.37
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- GCC ARM Embedded 10.3.1
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- MCUXpresso 11.6.0
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Hardware requirements
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=====================
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- Mini/micro USB cable
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- EVK-MIMXRT1020 board
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- Personal Computer
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Board settings
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==============
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No special settings are required.
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Prepare the Demo
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================
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1. Connect a USB cable between the host PC and the OpenSDA USB port on the target board.
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2. Open a serial terminal with the following settings:
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- 115200 baud rate
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- 8 data bits
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- No parity
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- One stop bit
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- No flow control
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3. Download the program to the target board.
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4. Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
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Running the demo
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================
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When the example runs successfully, the following message is displayed in the terminal:
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~~~~~~~~~~~~~~~~~~~~~
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----- Fast test starts -----
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----- Low Byte test starts -----
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Waiting for timeout reset
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Low Byte test succeeded
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----- High Byte test starts -----
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Waiting for timeout reset
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High Byte test succeeded
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----- The end of RTWDOG fast test -----
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----- Refresh test start -----
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----- None-window mode -----
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Refresh rtwdog 1 time
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Refresh rtwdog 2 time
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Refresh rtwdog 3 time
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Refresh rtwdog 4 time
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Refresh rtwdog 5 time
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Refresh rtwdog 6 time
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Waiting for time out reset
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None-window mode reset succeeded
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----- Window mode -----
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Refresh rtwdog 1 time
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Refresh rtwdog 2 time
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Refresh rtwdog 3 time
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Waiting for time out reset
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Window mode reset succeeded
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~~~~~~~~~~~~~~~~~~~~~
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Note:
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After disable the global interrupts, system needs to be finished configuration within a specified time,
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otherwise, it will be block during rtwdog_init.
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So, when there is no print in flexspi_nor_debug target or degug taget(MCUx IDE), please improve the level of optimization.
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Note:
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To download binary into qspiflash and boot from qspiflash directly, following steps are needed:
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1. Compile flash target of the project, and get the binaray file "rtwdog.bin".
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2. Set the SW8: 1 off 2 off 3 on 4 off, then power on the board and connect USB cable to J23.
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3. Drop the binaray into disk "RT1020-EVK" on PC.
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4. Wait for the disk disappear and appear again which will take couple of seconds.
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5. Reset the board by pressing SW3 or power off and on the board.
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Note:
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To debug in qspiflash, following steps are needed:
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1. Select the flash target and compile.
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2. Set the SW8: 1 off 2 off 3 on 4 off, then power on the board and connect USB cable to J23.
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3. Start debugging in IDE.
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- Keil: Click "Download (F8)" to program the image to qspiflash first then clicking "Start/Stop Debug Session (Ctrl+F5)" to start debugging.
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