Hardware requirements#

Micro USB cable
MIMX8ULP-EVK/EVK9 board
J-Link Debug Probe
5V power supply
RK055AHD091(rm68200) panel or RK055MHD091(hx8394) panel

Board settings#

Connect the MIPI panel to MIMX8ULP-EVK board J18.

Prepare the Demo#

Connect 5V power supply and J-Link Debug Probe to the board, switch SW10 to power on the board.
Connect a micro USB cable between the host PC and the J17 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
Build example to generate sdk20-app.bin
Generate flash.bin with imx-mkimage and download it according to Getting Started doc
Open two serials lines provided at J17 USB port. (e.g. /dev/ttyUSB0~3, /dev/ttyUSB2 for A Core, /dev/ttyUSB3 for M Core)
Press the reset button on your board and boot to uboot and let uboot not using diplay peripherals => setenv video_off yes;saveenv then re-power on the board
Let Stop in Uboot.

Steps to configure the panels#

RK055MHD091 panel is used by default and the default setting for APP_DISPLAY_EXTERNAL_CONVERTOR is disabled.

When Kconfig is used#

Below setting is for kconfig, you can fix below settings in prj.conf under example folder For default panel, you do not need to change anything. For RK055AHD091(rm68200) panel: CONFIG_DEMO_PANEL_RK055AHD091=y

When package is used#

Below setting is for mcux_config.h. For RK055AHD091(rm68200) panel: Setting DEMO_PANEL to 0 to choose RK055AHD091 panel.

Running the demo#

When the example runs, the screen shows what described in overview. The log below shows the output of the demo in the terminal window:

LCDIF pixel clock is: 66000000Hz

PXP Scale example start...
LCDIF pixel clock is: 66000000Hz
MIPI DSI tx_esc_clk frequency: 19800000Hz
MIPI DSI DPHY bit clock: 444000000Hz

Hardware requirements