ftm_lpit_adc12#
Overview#
This application demonstrates how to use the trigger signal generated by FTM to trigger the ADC conversion through LPIT module.
For instance, the FTM0 is configured to work in PWM mode. And its channel 0 monitors the FTM counter and compares with the channel value. Once the FTM counter matches the channel value, an external trigger would be generated. TRGMUX would capture this trigger and route it to LPIT module. When the LPIT is triggered, the LPIT counter increase. Once the LPIT matches the ADC pre-trigger value, a trigger signal would generated and sent to ADC module. Finally, the ADC gets the trigger signal and start the conversion.
Running the demo#
When the example runs successfully, you can see the similar information from the terminal as below.
ftm_lpit_adc12 demo. ADC Full Range: 256
Input any key to trigger the ADC conversion. g_adc12InterruptCounter: 1 g_adc12InterruptCounter: 2 g_adc12InterruptCounter: 3 g_adc12InterruptCounter: 4 g_adc12InterruptCounter: 5 g_adc12InterruptCounter: 6 g_adc12InterruptCounter: 7 g_adc12InterruptCounter: 8 g_adc12InterruptCounter: 9 g_adc12InterruptCounter: 10 …
Supported Boards#
FRDM-KE17Z
Hardware requirements
Micro USB cable
FRDM-KE17Z board.
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a USB cable between the host PC and the OpenSDA USB port 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.
FRDM-KE17Z512
Hardware requirements
Micro USB cable
FRDM-KE17Z512 board.
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a USB cable between the host PC and the MCU-LINK USB port 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.
FRDM-MCXE247
Hardware requirements
USB-C cable
FRDM-MCXE247 board.
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a USB cable between the host PC and the MCU-LINK USB port 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.