42 lines
1.6 KiB
Plaintext
42 lines
1.6 KiB
Plaintext
Overview
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========
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Hello World Virtual Com demonstrates the use of virtual com to print the "Hello World" string to the terminal.
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Different with Hello World demo (a HW UART peripheral is used to transmit data), the demo transmits data based on
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a serial port simulated by the USB device stack on target board side via USB peripheral.
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The purpose of this demo is to demonstrate how to use virtual com and provide a simple project for debugging and further development.
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Toolchain supported
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===================
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- Keil MDK 5.36
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- GCC ARM Embedded 10.3.1
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- MCUXpresso 11.5.0
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- IAR embedded Workbench 9.20.2
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Hardware requirements
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=====================
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- Two Micro USB cables
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- LPCXpresso55s69 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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Note: MCUXpresso IDE project default debug console is semihost
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1. Connect a USB cable between the host PC and the OpenSDA USB port on the target board for downloading
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the program and supply power for the board, connect another USB cable between host PC and USB port
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on the target board.
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2. Download the program to the target board.
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3. Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
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4. Open a serial terminal(like putty) to communicate with the board via virtual com.
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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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The debug console virtual com will echo back the received characters.
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