60 lines
2.4 KiB
Plaintext
60 lines
2.4 KiB
Plaintext
Overview
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========
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The Hello World demo application provides a sanity check for the new SDK build environments and board bring up. The Hello
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World demo prints the "Hello World" string to the terminal using the SDK UART drivers. The purpose of this demo is to
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show how to use the UART, and to provide a simple project for debugging and further development.
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Note: Please input one character at a time. If you input too many characters each time, the receiver may overflow
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because the low level UART uses simple polling way for receiving. If you want to try inputting many characters each time,
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just define DEBUG_CONSOLE_TRANSFER_NON_BLOCKING in your project to use the advanced debug console utility.
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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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The log below shows the output of the hello world demo in the terminal window:
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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hello world.
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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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 "hello_world.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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