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adc_sample_rate_measurement

adc_sample_rate_measurement#

Overview#

The SAR ADC sample rate measurement example shows how to measure SAR ADC sample rate.

In this demo, the ADC works at maximum clock frequency, after presses any key on the keyboard, the ADC sample rate will be printed to the serial terminal.

Supported Boards#

IMX95LPD5EVK-19
Hardware requirements

  • Personal Computer

  • IMX95LPD5BB-19-REV-A EVK board

  • 12V~20V power supply

  • J-Link Debug Probe

  • Micro USB cable

Board settings

No special settings are required.

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

Prepare the Demo

  1. Connect the 12V~20V power supply and J-Link Debug Probe to the board, and switch SW4 to power on the board.

  2. Connect a micro USB cable between the host PC and the J31 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, you will see similar information from the terminal shown below.

 ADC sample rate measurement demo.
 Please press any key to get the ADC sample rate.
 Adc sample rate: 1002000 sps.
 Please press any key to get the ADC sample rate.
 Adc sample rate: 1002000 sps.
 Please press any key to get the ADC sample rate.
 Adc sample rate: 1002000 sps.
IMX952LPD5EVK-19
Hardware requirements

  • Personal Computer

  • IMX952LPD5BB-19-REV-A EVK board

  • 12V~20V power supply

  • J-Link Debug Probe

  • Micro USB cable

Board settings

No special settings are required.

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

  1. Connect the 12V~20V power supply and J-Link Debug Probe to the board, and switch SW4 to power on the board.

  2. Connect a micro USB cable between the host PC and the J31 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, you will see similar information from the terminal shown below.

 ADC sample rate measurement demo.
 Please press any key to get the ADC sample rate.
 Adc sample rate: 1002000 sps.
 Please press any key to get the ADC sample rate.
 Adc sample rate: 1002000 sps.
 Please press any key to get the ADC sample rate.
 Adc sample rate: 1002000 sps.
IMX943-EVK
Hardware requirements

  • Personal Computer

  • IMX943EVK board

  • 12V~20V power supply

  • J-Link Debug Probe

  • Micro USB cable

Board settings

No special settings are required.

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

  1. Connect the 12V~20V power supply and J-Link Debug Probe to the board, and switch SW4 to power on the board.

  2. Connect a micro USB cable between the host PC and the J31 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, you will see similar information from the terminal shown below.

 ADC sample rate measurement demo.
 Please press any key to get the ADC sample rate.
 Adc sample rate: 735000 sps.
 Please press any key to get the ADC sample rate.
 Adc sample rate: 729000 sps.
 Please press any key to get the ADC sample rate.
 Adc sample rate: 734000 sps.
FRDM-MCXE31B
Hardware requirements

  • Type-C USB cable

  • FRDM-MCXE31B board

  • Personal Computer

Board settings

No special settings are required.

Prepare the Demo

  1. Connect a type-c USB cable between the host PC and the MCU-Link USB port (J13) on the target board.

  2. Open a serial terminal with the following settings:

    • 115200 baud rate

    • 8 data bits

    • No parity

    • One stop bit

    • No flow control

  3. Download the program to the target board.

  4. Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.

Running the demo

When the example runs successfully, you will see similar information from the terminal shown below.

 ADC sample rate measurement demo.
 Please press any key to get the ADC sample rate.
 Adc sample rate: 1929000 sps.
 Please press any key to get the ADC sample rate.
 Adc sample rate: 1928000 sps.
 Please press any key to get the ADC sample rate.
 Adc sample rate: 1928000 sps.
FRDM-MCXE32B
Hardware requirements

  • Type-C USB cable

  • FRDM-MCXE32B board

  • Personal Computer

Board settings

No special settings are required.

Prepare the Demo

  1. Connect a type-c USB cable between the host PC and the MCU-Link USB port (J13) on the target board.

  2. Open a serial terminal with the following settings:

    • 115200 baud rate

    • 8 data bits

    • No parity

    • One stop bit

    • No flow control

  3. Download the program to the target board.

  4. Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.

Running the demo

When the example runs successfully, you will see similar information from the terminal shown below.

 ADC sample rate measurement demo.
 Please press any key to get the ADC sample rate.
 Adc sample rate: 1929000 sps.
 Please press any key to get the ADC sample rate.
 Adc sample rate: 1928000 sps.
 Please press any key to get the ADC sample rate.
 Adc sample rate: 1928000 sps.
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