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usb_pd_alt_mode_dp_host

usb_pd_alt_mode_dp_host#

Overview#

This PD example is a simple demonstration based on the MCUXpresso SDK PD stack.
The application use the shield host board (om13790host) to implement the DisplayPort alternate mode. It recognize attached video adapters (like “Type-C to DisplayPort” or “Type-C to HDMI”), and drive the adapter to work.

System Requirement#

Hardware requirements#

  • One Type-C shield host board

  • One 9V DC power supply

  • Type-C Cable

  • One hardware for a specific device, for example: one lpcxpresso54114 board

  • Personal Computer

Software requirements#

  • The project files are in:
    <MCUXpresso_SDK_Install>/boards//usb_examples/usb_pd_alt_mode_dp_host//.

The is Bare Metal or FreeRTOS OS.

  • Terminal tool.

Getting Started#

Hardware Settings#


For detailed instructions, see the appropriate board User’s Guide.

Please reference to the re-worked document for hardware settings. Please note that this case does not work with the SCH-32144 REV B of shield board because this verison of shield board uses PTN36502 and the I2C address of PTN36502 is 0x1A. To make it work, need to change the macro PD_PTN36502_SLAVE_ADDRESS from 0x12 to 0x1A.

Prepare the example#

  1. For MCUXpresso, please reference to the MCUXpresso SDK USB Type-C PD Stack User’s Guide to make sure the SDK_DEBUGCONSOLE = 1 in project settings.

  2. Download the program to the target board.

  3. Power on shield host board then power on development board.

Run the example#

  1. Download this program to the board.

  2. Connect the video source (like: PC) to the MinDP port (J2).

  3. Connect one video adapter (like: “Type-C to DisplayPort” or “Type-C to HDMI”) to the Type-C port (J1).

  4. Connect one displayer to the adapter. For example: if the adapter is one “Type-C to DisplayPort” adapter, connect displayer to the adapter with one DisplayPort cable.

  5. The video source (PC) will recognize the displayer and the displayer works.

  6. The follow UGREEN USB-C to HDMI/VGA device has one issue. If keeping the device connected with shield host board, then reset mcu board, the UGREEN device doesn’t work.
    UGREEN USB-C to HDMI/VGA

Supported Boards#

  • MIMXRT1170-EVKB

  • FRDM-K22F

  • LPCXpresso55S69

  • EVK-MIMXRT1064

  • MIMXRT685-AUD-EVK

  • LPCXpresso55S16

  • MIMXRT1060-EVKB

  • MIMXRT1040-EVK

  • FRDM-MCXN947

  • LPCXpresso55S28

  • LPCXpresso55S36

  • MCX-N5XX-EVK

  • MIMXRT1060-EVKC

  • MIMXRT1160-EVK

  • MIMXRT1180-EVK

  • FRDM-K32L2A4S

  • MIMXRT700-EVK

  • EVK-MIMXRT595

  • EVK-MIMXRT685

  • MCX-N9XX-EVK

  • EVKB-IMXRT1050

  • EVK-MIMXRT1015

  • FRDM-MCXN236

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