pdb_adc12_trigger#
Overview#
The pdb_adc12_trigger example shows how to use the PDB to generate a ADC trigger.
Based on the basic counter, to use the ADC trigger, just to enable the ADC trigger’s “milestone” and set the user-defined value for it. After the PDB counter is triggered to start, when the counter pass the “milestone”, the ADC’s Pre-Trigger would be generated and sent to the ADC12 module.
In this example, the ADC12 is configured with hardware trigger and conversion complete interrupt enabled. Once it gets the trigger from the PDB, the conversion goes, then the ISR would be executed.
Running the demo#
When the demo runs successfully, the log would be seen on the OpenSDA terminal like:
PDB ADC12 Pre-Trigger Example.
Type any key into terminal to trigger the PDB and then trigger the ADC12’s conversion …
PDB Interrupt Counter: 1 ADC12 Conversion Interrupt Counter: 1
PDB Interrupt Counter: 2 ADC12 Conversion Interrupt Counter: 2
PDB Interrupt Counter: 3 ADC12 Conversion Interrupt Counter: 3
PDB Interrupt Counter: 4 ADC12 Conversion Interrupt Counter: 4 …
Supported Boards#
FRDM-KE15Z
Hardware requirements
Micro USB cable
FRDM-KE15Z board
Personal Computer
Board settings
No special is needed.
Prepare the Demo
Connect a USB cable between the PC host and the OpenSDA USB port on the board.
Open a serial terminal on PC for OpenSDA serial device 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 demo.
FRDM-KE16Z
Hardware requirements
Micro USB cable
FRDM-KE16Z board
Personal Computer
Board settings
No special is needed.
Prepare the Demo
Connect a USB cable between the PC host and the OpenSDA USB port on the board.
Open a serial terminal on PC for OpenSDA serial device 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 demo.
FRDM-MCXE247
Hardware requirements
USB-C cable
FRDM-MCXE247 board
Personal Computer
Board settings
No special is needed.
Prepare the Demo
Connect a USB cable between the PC host and the OpenSDA USB port on the board.
Open a serial terminal on PC for OpenSDA serial device 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 demo.