acmp_interrupt#
Overview#
In hw_trig example, a counter is used to generate a 10KHz, 70% duty cycle PWM, and a trigger is generated at 50% of the PWM period. This trigger is routed to bctu as the hardware trigger source, which is then trigger ADC to convert.
Supported Boards#
FRDM-MCXE31B
Hardware requirements
Type-C USB cable
FRDM-MCXE318 board
Personal Computer
Board settings
Connect the J3-11 to a oscilloscope to observe the 10KHz, 70% dutycycle PWM.
Prepare the Demo
Connect a type-c USB cable between the host PC and the MCU-Link USB port (J13) on the target board.
Open a serial terminal with the following 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.
Running the demo
The following lines are printed to the serial terminal when the demo program is executed.
BCTU HardWare Trigger Example
Please press any key to get the ADC value
ADC channel 48 value: 12023
ADC channel 48 value: 12022
ADC channel 48 value: 12024
FRDM-MCXE32B
Hardware requirements
Type-C USB cable
FRDM-MCXE318 board
Personal Computer
Board settings
Connect the J3-11 to a oscilloscope to observe the 10KHz, 70% dutycycle PWM.
Prepare the Demo
Connect a type-c USB cable between the host PC and the MCU-Link USB port (J13) on the target board.
Open a serial terminal with the following 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.
Running the demo
The following lines are printed to the serial terminal when the demo program is executed.
BCTU HardWare Trigger Example
Please press any key to get the ADC value
ADC channel 48 value: 12023
ADC channel 48 value: 12022
ADC channel 48 value: 12024