KrzysztofChojnowski: Created page with "{{PageHeader|VisionCB-8M-ADV Selecting display interface}} During boot, the default u-boot configuration selects one of the three display interfaces available on the board: * DSI * HDMI (through LT8912 converter) * LVDS (through LT8912 converter) The selection is based on the DISP MUX jumper and I2C3_SDA (GPIO5_IO19) pins according to the following table. The DSI display selection is based on the presence of the touchscreen device on I2C1 interface. {| class="wikitabl..."

2025-05-12T14:07:35Z

Created page with "{{PageHeader|VisionCB-8M-ADV Selecting display interface}} During boot, the default u-boot configuration selects one of the three display interfaces available on the board: * DSI * HDMI (through LT8912 converter) * LVDS (through LT8912 converter) The selection is based on the DISP MUX jumper and I2C3_SDA (GPIO5_IO19) pins according to the following table. The DSI display selection is based on the presence of the touchscreen device on I2C1 interface. {| class="wikitabl..."

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{{PageHeader|VisionCB-8M-ADV Selecting display interface}}

During boot, the default u-boot configuration selects one of the three display interfaces available on the board:
* DSI
* HDMI (through LT8912 converter)
* LVDS (through LT8912 converter)

The selection is based on the DISP MUX jumper and I2C3_SDA (GPIO5_IO19) pins according to the following table. The DSI display selection is based on the presence of the touchscreen device on I2C1 interface.

{| class="wikitable" style="text-align:center;"
|- style="background-color:#c0c0c0;"
! DISP MUX
! I2C3_SDA (GPIO5_IO19)
! style="border-color:inherit;" | I2C1 device present
! style="border-color:inherit;" | Selected interface
! Loaded device tree
|-
| DSI
| N/A
| style="border-color:inherit;" | 0x41
| style="border-color:inherit;" | DSI
| visionsom-8mm-cb-adv-mipi7-rvt70hsmnwc00.dtb
|-
| DSI
| N/A
| style="border-color:inherit;" | 0x38
| style="border-color:inherit;" | DSI
| visionsom-8mm-cb-adv-mipi7-ph720128t003.dtb
|-
| DSI
| N/A
| style="border-color:inherit;" | None or other than 0x41 and 0x38
| style="border-color:inherit;" | None
| visionsom-8mm-cb-adv.dtb
|-
| HDMI
| LOW
| style="border-color:inherit;" | N/A
| style="border-color:inherit;" | LVDS
| visionsom-8mm-cb-adv-lvds-rvt70hslnwc00-b.dtb
|-
| HDMI
| HIGH
| style="border-color:inherit;" | N/A
| style="border-color:inherit;" | HDMI
| visionsom-8mm-cb-adv-hdmi.dtb
|}

[[File:visionsom-8mm-adv-display.png|center|500px]]

VisionCB-8M-ADV Selecting display interface - Revision history