MCUXpresso SDK Documentation
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Hardware requirements

Hardware requirements#

  • Micro USB cable

  • MIMXRT700-EVK board

  • Personal Computer

  • RK055AHD091 MIPI panel (Not necessary if use other panel)

  • RK055MHD091 MIPI panel (Not necessary if use other panel)

  • OV7670 module Board settings ============ To use MIPI panel: Connect MIPI panel to J52.

Prepare the Demo#

The demo use MIPI RK055MHD091 panel by default, to use MIPI RK055AHD091 panel, change the macro DEMO_PANEL to 0 in mcux_config.h.

  1. Connect a micro USB cable between the PC host and the USB port on the 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. Launch the debugger in your IDE to begin running the demo.

Running the demo CM33#

When the demo runs successfully, you will find the video is dislayed on the  
panel of RK055AHD091 or RK055MHD091.
and the terminal will display the following:
    EZH-V flexIO DVP example started
    Frame Update Rate: 28 fps
    Frame Update Rate: 28 fps

Note:#

Connect the OV7670 camera sensor to J53 connector short 2-3 for JP7

Note:#

If the camera frame buffer is placed in SRAM P18~P29, and camera resolution is set to 640x480, the EZHV firmware doesn’t work at 30Hz frame rate, 15Hz frame rate works. Root cause is accessing to these RAM_ARBITER1 partitions needs more clock cycles, so the EZHV can’t write camera data to the buffers in time.

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