adc12_interrupt#
Overview#
The adc12_interrupt example shows how to use interrupt with ADC12 driver.
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 running the project, typing any key into debug console would trigger the conversion. ADC interrupt would be asserted once the conversion is completed. In ADC ISR, the conversion completed flag would be cleared by reading the conversion result value. Also, the conversion result value is stored, and the ISR counter is increased. These information would be printed when the execution return to the main loop.
The point is that the ADC12 interrupt configuration is set when configuring the ADC12’s conversion channel. When in software trigger mode, the conversion would be launched by the operation of configuring channel, just like writing a conversion command. So if user wants to generate the interrupt every time the conversion is completed, the channel’s configuration with enabling interrupt setting would be used for each conversion.
Running the demo#
When the example runs successfully, following information can be seen on the OpenSDA terminal: ADC12 interrupt Example. ADC Full Range: 256 Press any key to get user channel’s ADC value …
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 PTA0(J4-12) 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.