adc12_lpit_trgmux#
Overview#
The adc12_lpit_trgmux example shows how to use the LPIT and TRGMUX to generate a ADC trigger.
In this example, user should indicate a channel to provide a voltage signal (can be controlled by user) as the ADC12’s sample input. When run the example, the ADC is triggered by TRGMUX and gets the ADC conversion result in the ADC Conversion Complete (COCO) Interrupt. The LPIT is configured as periodic counter which will output pre-trigger and tigger signal to TRGMUX periodically.
Running the demo#
When the demo runs successfully, the log would be seen on the OpenSDA terminal like:
ADC Full Range: 4096
Change the input voltage to check ADC12's conversion result...
ADC12 Interrupt Counter: 1
ADC12 Conversion Completed, result value: 4056
ADC12 Interrupt Counter: 2
ADC12 Conversion Completed, result value: 781
Supported Boards#
FRDM-KE15Z
Hardware requirements
Micro USB cable
FRDM-KE15Z board
Personal Computer
Board settings
This example project uses ADC12 instance 0 to sample and convert the voltage signal input from channel 0(PTA0). So the voltage signal input from PTA0 should be changed to observe the dynamical conversion result.
Prepare the Demo
Connect a USB cable between the PC host and the OpenSDA USB port on the board.
Open a serial terminal with these settings:
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 example.
FRDM-KE16Z
Hardware requirements
Micro USB cable
FRDM-KE16Z board
Personal Computer
Board settings
This example project uses ADC12 instance 0 to sample and convert the voltage signal input from channel 0(PTA0). So the voltage signal input from J4-12(PTA0) should be changed to observe the dynamical conversion result.
Prepare the Demo
Connect a USB cable between the PC host and the OpenSDA USB port on the board.
Open a serial terminal with these settings:
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 example.
FRDM-KE17Z
Hardware requirements
Micro USB cable
FRDM-KE17Z board
Personal Computer
Board settings
This example project uses ADC12 instance 0 to sample and convert the voltage signal input from channel 0(PTE9). So the voltage signal input from PTE9(J3-3) should be changed to observe the dynamical conversion result.
Prepare the Demo
Connect a USB cable between the PC host and the OpenSDA USB port on the board.
Open a serial terminal with these settings:
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 example.
FRDM-KE17Z512
Hardware requirements
Micro USB cable
FRDM-KE17Z512 board
Personal Computer
Board settings
This example project uses ADC12 instance 0 to sample and convert the voltage signal input from channel 0(PTE9). So the voltage signal input from PTE9(J2-19) should be changed to observe the dynamical conversion result.
Prepare the Demo
Connect a USB cable between the PC host and the MCU-LINK USB port on the board.
Open a serial terminal with these settings:
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 example.
FRDM-MCXE247
Hardware requirements
USB-C cable
FRDM-MCXE247 board
Personal Computer
Board settings
This example project uses ADC12 instance 0 to sample and convert the voltage signal input from channel 0 (PTA0). So the voltage signal input on PTA0 (J4-10) should be changed to observe the dynamical conversion result.
Prepare the Demo
Connect a USB cable between the PC host and the MCU-LINK USB port on the board.
Open a serial terminal with these settings:
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 example.