54 lines
1.5 KiB
Plaintext
54 lines
1.5 KiB
Plaintext
Overview
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========
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The cmsis_gpio_button_toggle_led example show how to use the CMSIS driver interface to operate the LED as GPIO output and
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operate the GPIO as input with callback supported.
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In this example, everytime button is pressed will trigger a interrupt and user callback will be invoked. The user callback will
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toggle the LED and print to the console to indicate a button press event is detected.
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Toolchain supported
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===================
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- IAR embedded Workbench 9.20.2
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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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Hardware requirements
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=====================
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- Mini/micro 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 micro USB cable between the PC host and the CMSIS DAP USB port (P6) on the board
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2. Open a serial terminal with the following settings (See Appendix A in Getting started guide for description how to determine serial port number):
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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 following message shows in the terminal if the example runs successfully.
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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CMSIS GPIO Example!
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Use Button to toggle LED!
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BUTTON Pressed!
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BUTTON Pressed!
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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