mcx_opamp_basic#
Overview#
The OPAMP basic example demonstrates how to use the OPAMP driver. In this example, the OPAMP works in the internal gain mode, connect the positive terminal of the OPAMP to the external input source. The OPAMP output is 2X of the external input voltage. When the input voltage changes, the OPAMP output changes accordingly.
Supported Boards#
FRDM-MCXA156
Hardware requirements
Type-C USB cable
FRDM-MCXA156 Board
Personal Computer
Board settings Positive input channel J2-12(P2_12). OPAMP output pin: J8-5(P2_15). Negative input channel R60-3(OPAMP0_INN) connects to GND.
Prepare the Demo
Connect a micro USB cable between the PC host and the MCU-Link USB port on the board
Open a serial terminal with the following settings (See Appendix A in Getting started guide for the description of how to determine serial port number):
115200 baud rate
8 data bits
No parity
One-stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
Running the demo
OPAMP BASIC EXAMPLE!
OPAMP output voltage, ranging 0-3.3v, is about twice the input voltage.
FRDM-MCXN947
Hardware requirements
Type-C USB cable
FRDM-MCXN947 board
Personal Computer
Board settings Positive input channel J4-1(P4_12). OPAMP output pin: J8-20(P4_15). Negative input channel J4_3(OPAMP0_INN) connects to GND.
Prepare the Demo
Connect a type-c USB cable between the PC host and the CMSIS DAP USB port (J17) on the board
Open a serial terminal with the following settings (See Appendix A in Getting started guide for the description of how to determine serial port number):
115200 baud rate
8 data bits
No parity
One-stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
Running the demo
OPAMP BASIC EXAMPLE!
OPAMP output voltage, ranging 0-3.3v, is about twice the input voltage.
FRDM-MCXN947T
Hardware requirements
Type-C USB cable
FRDM-MCXN947T board
Personal Computer
Board settings Positive input channel J4-1(P4_12). OPAMP output pin: J8-20(P4_15). Negative input channel J4_3(OPAMP0_INN) connects to GND.
Prepare the Demo
Connect a type-c USB cable between the PC host and the CMSIS DAP USB port (J17) on the board
Open a serial terminal with the following settings (See Appendix A in Getting started guide for the description of how to determine serial port number):
115200 baud rate
8 data bits
No parity
One-stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
Running the demo
OPAMP BASIC EXAMPLE!
OPAMP output voltage, ranging 0-3.3v, is about twice the input voltage.
MCX-N9XX-EVK
Hardware requirements
Mini/micro USB cable
MCX-N9XX-EVK board
Personal Computer
Board settings Positive input channel J4-1(P4_12). OPAMP output pin: J20-20(P4_15). Negative input channel J4_3(OPAMP0_INN) connects to GND.
Prepare the Demo
Connect a micro USB cable between the PC host and the CMSIS DAP USB port (J5) on the board
Open a serial terminal with the following settings (See Appendix A in Getting started guide for the description of how to determine serial port number):
115200 baud rate
8 data bits
No parity
One-stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
Running the demo
OPAMP BASIC EXAMPLE!
OPAMP output voltage, ranging 0-3.3v, is about twice the input voltage.
FRDM-MCXC162
Hardware requirements
Type-C USB cable
FRDM-MCXC162 Board
Personal Computer
Board settings Positive input channel J1-13(P2_12). OPAMP output pin: J2-1(P2_16). Negative input channel J1_15(P2_13) connects to GND.
Prepare the Demo
Connect a micro USB cable between the PC host and the MCU-Link USB port on the board
Open a serial terminal with the following settings (See Appendix A in Getting started guide for the description of how to determine serial port number):
115200 baud rate
8 data bits
No parity
One-stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
Running the demo
OPAMP BASIC EXAMPLE!
OPAMP output voltage, ranging 0-3.3v, is about twice the input voltage.