76 lines
2.4 KiB
Plaintext
76 lines
2.4 KiB
Plaintext
Overview
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========
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The Shell Demo application demonstrates to control Leds by commands.
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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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Besides, the demo does not support semihosting mode. The shell component is based on debug console and
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serial manager. When semihosting is used, debug console and serial manager are bypassed. So the shell demo cannot
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work with semihosting.
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Toolchain supported
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===================
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- Keil MDK 5.36
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- IAR embedded Workbench 9.20.2
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- GCC ARM Embedded 10.3.1
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- MCUXpresso 11.5.0
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Hardware requirements
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=====================
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- Mini USB cable
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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 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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SHELL (build: Jun 19 2020)
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Copyright 2020 NXP
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SHELL>> help
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"help": Lists all the registered commands
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"led arg1 arg2":
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Usage:
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arg1: 1|2|3|4... Led index
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arg2: on|off Led status
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"exit": Exit program
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SHELL>> led 1 on
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SHELL>> led 1 off
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SHELL>> led 2 on
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SHELL>> led 2 off
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SHELL>> led 3 on
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SHELL>> led 3 off
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SHELL>> led 4 on
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LED index is wrongs
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SHELL>>
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~~~~~~~~~~~~~~~~~~~~~
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Note:
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1,The shell information "SHELL (build: Jun 19 2020)" may be different, which depends on the compile date.
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2,If the command 'led x on'/'led x off' run success, the corresponding LEDx on board will turn on/turn off.
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But the valid "Led index" may be different, which depends how many LEDs are available on the specific board.
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For example: one board only have LED1/LED2, then shell demo will print "LED index is wrong" for all led index bigger than 2.
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