Hardware requirements

  • Type-C USB cable

  • IMX95VERDIN-EVK board

  • J-Link Debug Probe

  • 12V~20V power supply

  • Personal Computer

Board settings

Connect J45-4(GPIO_IO13 pad) and j26-2(GND) to oscilloscope

Please note this application can’t support running with Linux BSP!

Note

Please run the application in Low Power boot mode (without Linux BSP). The IP module resource of the application is also used by Linux BSP. Or, run with Single Boot mode by changing Linux BSP to avoid resource conflict.

Prepare the Demo

  1. Connect 12V~20V power supply and J-Link Debug Probe to the board, switch S6 to power on the board.

  2. Connect a Type-C USB cable between the host PC and the J4 USB port on the target board.

  3. Open a serial terminal with the following settings:

    • 115200 baud rate

    • 8 data bits

    • No parity

    • One stop bit

    • No flow control

  4. Download the program to the target board.

  5. Either re-power up your board or launch the debugger in your IDE to begin running the example.

Running the demo

When the example runs successfully, if the input duty cycle range is 0~100, You can see similar information from the terminal as follows:

FLEXIO_PWM demo start.

Please input a value (0 - 100) to set duty cycle: 10
Input value is 10

PWM duty cycle is: 10

PWM leave is: 0

Please input a value (0 - 100) to set duty cycle: 150
Input value is 150
Your value is output of range.
Set pwm output to IDLE.

Please input pwm idle status (0 or 1): 1
Input IDLE state value is 1

PWM leave is: 1

Please input a value (0 - 100) to set duty cycle:
......

Note:

  1. The duty cycle of the PWM is variable, except for the idle state, 0 and 100.

  2. If the input duty cycle range exceeds 100, the pwm will be set to idle state

  3. If the set pwm idle value is out of range, it will output “Your value is output of range.” and then return to set the duty cycle.