lpadc_single_polling#
Overview#
The lpadc_single_polling example shows the simplest way to use LPADC driver.
In this example, user should indicate a channel to provide a voltage signal (can be controlled by user) as the LPADC’s sample input. When running the project, typing any key into debug console would trigger the conversion. The execution would check the FIFO valid flag in loop until the flag is asserted, which means the conversion is completed. Then read the conversion result value and print it to debug console.
Note, the default setting of initialization for the ADC converter is just an available configuration. User can change the configuration structure’s setting in application to fit the special requirement.
Supported Boards#
EVK9-MIMX8ULP
Hardware requirements
Micro USB cable
MIMX8ULP-EVK/EVK9 board
J-Link Debug Probe
5V power supply
Personal Computer
Board settings
Set 0~1.8V voltage input to CH5A(J11-7) by using DC power supply
Please note this application can’t support running with Linux BSP!
Prepare the Demo
Connect 5V power supply and J-Link Debug Probe to the board, switch SW1 to power on the board.
Connect a micro USB cable between the host PC and the J6 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 example.
Running the demo
When the demo runs successfully, following information can be seen on the terminal:
LPADC Single Polling Example
ADC Full Range: 4096
Full channel scale (Factor of 1).
Please press any key to get user channel's ADC value.
ADC value: 2714
EVK-MCIMX7ULP
Hardware requirements
Micro USB cable
MCIMX7ULP-EVK board
J-Link Debug Probe
5V power supply
Personal Computer
Board settings
The example uses CH6A(J11-7) as LPADC input.
Please note this application can’t support running with Linux BSP!
Prepare the Demo
Connect 5V power supply and J-Link Debug Probe to the board, switch SW1 to power on the board.
Connect a micro USB cable between the host PC and the J6 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 example.
Running the demo
When the demo runs successfully, following information can be seen on the terminal:
LPADC Polling Example
ADC Full Range: XXXX
Please press any key to get user channel's ADC value.
ADC value: 2714
EVK-MIMX8ULP
Hardware requirements
Micro USB cable
MIMX8ULP-EVK/EVK9 board
J-Link Debug Probe
5V power supply
Personal Computer
Board settings
Set 0~1.8V voltage input to CH5A(J11-7) by using DC power supply
Please note this application can’t support running with Linux BSP!
Prepare the Demo
Connect 5V power supply and J-Link Debug Probe to the board, switch SW1 to power on the board.
Connect a micro USB cable between the host PC and the J6 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 example.
Running the demo
When the demo runs successfully, following information can be seen on the terminal:
LPADC Single Polling Example
ADC Full Range: 4096
Full channel scale (Factor of 1).
Please press any key to get user channel's ADC value.
ADC value: 2714
EVK-MIMXRT685
Hardware requirements
Micro USB cable
EVK-MIMXRT685 board
Personal Computer
Board settings
Set VREF_L to GND, VREF_H to 1.8V (connect JP9, JP10).
Input voltage signal(0~1.8V) to J30-1(LPADC0 CH0).
Prepare the Demo
Connect a micro USB cable between the PC host and the CMSIS DAP USB port (J5) on the 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.
Launch the debugger in your IDE to begin running the demo.
Running the demo
When the demo runs successfully, following information can be seen on the terminal:
LPADC Single Polling Example
Please press any key to get user channel's ADC value.
ADC value: 2714
FRDM-MCXW71
Hardware requirements
Type-C USB cable
FRDM-MCXW71 Board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect the micro and mini USB cable between the PC host and the USB ports on the board.
Open a serial terminal on PC for the 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.
The J6 Pin 1 (ADC0_A6) on EVK board is used to monitor the voltage. The VDD_ANA is used as the ADC reference.
Running the demo
The following lines are printed to the serial terminal when the demo program is executed.
LPADC Single Polling Example
ADC Full Range: XXXX
Please press any key to get user channel's ADC value.
ADC value: 2714
MCX-W71-EVK
Hardware requirements
Type-C USB cable
MCX-W71-EVK Board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a USB cable between the host PC and the EVK board J14.
Open a serial terminal on PC for the 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.
The J4 Pin 9 (ADC0_A6) on EVK board is used to monitor the voltage. The VDD_ANA is used as the ADC reference.
Running the demo
The following lines are printed to the serial terminal when the demo program is executed.
LPADC Single Polling Example
ADC Full Range: XXXX
Please press any key to get user channel's ADC value.
ADC value: 2714
KW45B41Z-EVK
Hardware requirements
Mini/micro USB cable
KW45B41Z-EVK Board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect the micro and mini USB cable between the PC host and the USB ports on the board.
Open a serial terminal on PC for the 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.
The J12 Pin 1 (ADC0_A6) on EVK board is used to monitor the voltage. The VDD_ANA is used as the ADC reference.
Running the demo
The following lines are printed to the serial terminal when the demo program is executed.
LPADC Single Polling Example
ADC Full Range: XXXX
Please press any key to get user channel's ADC value.
ADC value: 2714
KW47-EVK
Hardware requirements
Type-C USB cable
KW47-EVK Board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a USB cable between the host PC and the EVK board J14.
Open a serial terminal on PC for the 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.
The J4 Pin 9 (ADC0_A6) on EVK board is used to monitor the voltage. The VDD_ANA is used as the ADC reference.
Running the demo
The following lines are printed to the serial terminal when the demo program is executed.
LPADC Single Polling Example
ADC Full Range: XXXX
Please press any key to get user channel's ADC value.
ADC value: 2714
MCX-W72-EVK
Hardware requirements
Type-C USB cable
MCX-W72-EVK Board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a USB cable between the host PC and the EVK board J14.
Open a serial terminal on PC for the 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.
The J4 Pin 9 (ADC0_A6) on EVK board is used to monitor the voltage. The VDD_ANA is used as the ADC reference.
Running the demo
The following lines are printed to the serial terminal when the demo program is executed.
LPADC Single Polling Example
ADC Full Range: XXXX
Please press any key to get user channel's ADC value.
ADC value: 2714
MIMXRT685-AUD-EVK
Hardware requirements
Micro USB cable
MIMXRT685-AUD-EVK board
Personal Computer
Board settings
Set VREF_L to GND, VREF_H to 1.8V (connect JP9, JP10).
Input voltage signal(0~1.8V) to LPADC0 CH0 (R405, P_5_ADC0_0 side)
Prepare the Demo
Connect a micro USB cable between the PC host and the CMSIS DAP USB port (J5) on the 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.
Launch the debugger in your IDE to begin running the demo.
Running the demo
When the demo runs successfully, following information can be seen on the terminal:
LPADC Single Polling Example
Please press any key to get user channel's ADC value.
ADC value: 2714
KW47-LOC
Hardware requirements
Type-C USB cable
KW47-LOC Board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a USB cable between the host PC and the LOC board J3.
Open a serial terminal on PC for the 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.
The J1 Pin 1 (ADC0_A15) on LOC board is used to monitor the voltage. The VDD_ANA is used as the ADC reference.
Running the demo
The following lines are printed to the serial terminal when the demo program is executed.
LPADC Single Polling Example
ADC Full Range: 4096
Please press any key to get user channel's ADC value.
ADC value: 2714
MCXW72-LOC
Hardware requirements
Type-C USB cable
MCXW72-LOC Board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a USB cable between the host PC and the LOC board J3.
Open a serial terminal on PC for the 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.
The J1 Pin 1 (ADC0_A15) on LOC board is used to monitor the voltage. The VDD_ANA is used as the ADC reference.
Running the demo
The following lines are printed to the serial terminal when the demo program is executed.
LPADC Single Polling Example
ADC Full Range: 4096
Please press any key to get user channel's ADC value.
ADC value: 2714
FRDM-MCXW72
Hardware requirements
Type-C USB cable
FRDM-MCXW72 Board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a USB cable between the host PC and the FRDM board J10.
Open a serial terminal on PC for the 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.
The J6 Pin 1 (ADC0_A6) on FRDM board is used to monitor the voltage. The VDD_ANA is used as the ADC reference.
Running the demo
The following lines are printed to the serial terminal when the demo program is executed.
LPADC Single Polling Example
ADC Full Range: 4096
Please press any key to get user channel's ADC value.
ADC value: 2714
FRDM-KW43
Hardware requirements
Type-C USB cable
FRDM-KW43 Board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a USB cable between the host PC and the FRDM board J28.
Open a serial terminal on PC for the 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.
Running the demo
The following lines are printed to the serial terminal when the demo program is executed.
LPADC Single Polling Example
ADC Full Range: XXXX
Please press any key to get user channel's ADC value.
ADC value: 2714
FRDM-MCXW70
Hardware requirements
Type-C USB cable
FRDM-MCXW70 Board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a USB cable between the host PC and the FRDM board J28.
Open a serial terminal on PC for the 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.
Running the demo
The following lines are printed to the serial terminal when the demo program is executed.
LPADC Single Polling Example
ADC Full Range: XXXX
Please press any key to get user channel's ADC value.
ADC value: 2714