49 lines
1.6 KiB
Plaintext
49 lines
1.6 KiB
Plaintext
Overview
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========
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The bod example shows how to use LPC BOD(Brown-out detector) in the simplest way.
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To run this example, user should remove the jumper for the power source selector,
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and connect the adjustable input voltage to the MCU's Vin pin.
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If the input voltage of the Vin pin is lower than the threshold voltage, the BOD interrupt
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will be asserted.
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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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Remove jumper for P4, connect the external input voltage to P4_2.
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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 log below shows the output of the BOD demo in the terminal window:
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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BOD INTERRUPT EXAMPLE.
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Please adjust input voltage low than 2.0V to trigger BOD interrupt.
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BOD interrupt occurred, input voltage is low than 2.0V.
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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