Difference between revisions of "iMX6 Rex Display Set"
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| − | [[Category:iMX6 Rex Development | + | [[Category:iMX6 Rex Development Kit]] |
[[Category:iMX6 Rex Peripherals]] | [[Category:iMX6 Rex Peripherals]] | ||
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<div style="float:right">__TOC__</div> | <div style="float:right">__TOC__</div> | ||
| − | This section shows information about the iMX6 Rex Display Set. The iMX6 Rex Development | + | This section shows information about the iMX6 Rex Display Set. The iMX6 Rex Development Kit in this configuration is equipped with Android 4.4.2 to support LVDS display with a touchscreen layer. In this case the display is installed on the top of the iMX6 Rex Base Board.<br /> |
| − | [[image: | + | [[image:iMX6_Rex_Development_Kit-LVDS_EDT_display_adapter-Overview.jpg|800px]] |
== Mechanical connection == | == Mechanical connection == | ||
| − | When combined with the complete iMX6 Rex Development Kit, the Display Set creates a compact, ready-to-use solution. To assemble them together, the following mechanical and electrical accessories were designed and selected to be part of the Display set: | + | When combined with the complete iMX6 Rex Development Kit, the iMX6 Rex Display Set creates a compact, ready-to-use solution. To assemble them together, the following mechanical and electrical accessories were designed and selected to be part of the Display set: |
* TFT EDT display with LVDS interface and resistive touchscreen | * TFT EDT display with LVDS interface and resistive touchscreen | ||
* H-shaped auxiliary aluminum holder | * H-shaped auxiliary aluminum holder | ||
| Line 16: | Line 16: | ||
* necessary connectors, screws, nuts and spacers | * necessary connectors, screws, nuts and spacers | ||
* touch pen | * touch pen | ||
| − | [[image: | + | [[image:iMX6_Rex_Development_Kit-LVDS_EDT_display_adapter-Side_view.jpg|800px]] |
== Hardware connection == | == Hardware connection == | ||
| − | To enable smooth communication between the board and the display, [https:// | + | To enable smooth communication between the board and the display, [https://downloads.voipac.com/files/iMX6_Rex_Development_Kit/accessories/LVDS_EDT_display_adapter/iMX6_Rex_Development_Kit-LVDS_EDT_display_adapter_schematic.pdf iMX6 Rex Adapter] was designed to connect the set together. To implement the display capabilities, following connections need to be made: |
* connection between LVDS Display and LVDS Adapter J1 (using a flexible flat cable) | * connection between LVDS Display and LVDS Adapter J1 (using a flexible flat cable) | ||
| − | * LVDS Interface and power connection between iMX6 Rex Development | + | * LVDS Interface and power connection between iMX6 Rex Development Kit J41 and LVDS Adapter J2 (using LVDS and Touchscreen cable) |
| − | * touchscreen connection between iMX6 Rex Development | + | * touchscreen connection between iMX6 Rex Development Kit J40 and LVDS Adapter J3 (using LVDS and Touchscreen cable) |
=== LVDS and Touchscreen cable === | === LVDS and Touchscreen cable === | ||
[[image:iMX6_Rex_LVDS_with_touchscreen_cable_for_ETV570G6DHU.jpg|800px]] | [[image:iMX6_Rex_LVDS_with_touchscreen_cable_for_ETV570G6DHU.jpg|800px]] | ||
| Line 29: | Line 29: | ||
iMX6 Rex Display Set is preinstalled with Android operation system enabling LVDS and touchscreen capabilities by default. Manual configuration is not necessary, but might be useful in individual cases. | iMX6 Rex Display Set is preinstalled with Android operation system enabling LVDS and touchscreen capabilities by default. Manual configuration is not necessary, but might be useful in individual cases. | ||
=== LVDS manual booting === | === LVDS manual booting === | ||
| − | + | Manually booting with LVDS interface as a primary source for video output: | |
<syntaxhighlight lang="bash"> | <syntaxhighlight lang="bash"> | ||
Rex U-Boot > setenv video 'video=mxcfb0:dev=ldb,edt570,if=RGB666 video=mxcfb1:off' | Rex U-Boot > setenv video 'video=mxcfb0:dev=ldb,edt570,if=RGB666 video=mxcfb1:off' | ||
Latest revision as of 12:30, 24 April 2022
This section shows information about the iMX6 Rex Display Set. The iMX6 Rex Development Kit in this configuration is equipped with Android 4.4.2 to support LVDS display with a touchscreen layer. In this case the display is installed on the top of the iMX6 Rex Base Board.
Mechanical connection
When combined with the complete iMX6 Rex Development Kit, the iMX6 Rex Display Set creates a compact, ready-to-use solution. To assemble them together, the following mechanical and electrical accessories were designed and selected to be part of the Display set:
- TFT EDT display with LVDS interface and resistive touchscreen
- H-shaped auxiliary aluminum holder
- display adapter board
- flat flex 33-wire cable, 127mm long
- 20-wire display + touchscreen cable
- necessary connectors, screws, nuts and spacers
- touch pen
Hardware connection
To enable smooth communication between the board and the display, iMX6 Rex Adapter was designed to connect the set together. To implement the display capabilities, following connections need to be made:
- connection between LVDS Display and LVDS Adapter J1 (using a flexible flat cable)
- LVDS Interface and power connection between iMX6 Rex Development Kit J41 and LVDS Adapter J2 (using LVDS and Touchscreen cable)
- touchscreen connection between iMX6 Rex Development Kit J40 and LVDS Adapter J3 (using LVDS and Touchscreen cable)
LVDS and Touchscreen cable
Software instructions
iMX6 Rex Display Set is preinstalled with Android operation system enabling LVDS and touchscreen capabilities by default. Manual configuration is not necessary, but might be useful in individual cases.
LVDS manual booting
Manually booting with LVDS interface as a primary source for video output:
Rex U-Boot > setenv video 'video=mxcfb0:dev=ldb,edt570,if=RGB666 video=mxcfb1:off' Rex U-Boot > boot
Touchscreen test
Make sure TSC2007 chip is detected and bound as input device:
root@imx6-rexultra:~# dmesg | grep -i tsc2007 input: TSC2007 Touchscreen as /devices/soc0/soc.0/2100000.aips-bus/21a4000.i2c/i2c-1/1-0048/input/input0 evbug: Connected device: input0 (TSC2007 Touchscreen at 1-0048/input0)
Touchscreen events are generated after pressing the resistive layer:
root@imx6-rexultra:~# evtest /dev/input/by-path/platform-21a4000.i2c-event
Input driver version is 1.0.1
Input device ID: bus 0x18 vendor 0x0 product 0x0 version 0x0
Input device name: "TSC2007 Touchscreen"
Supported events:
Event type 0 (EV_SYN)
Event type 1 (EV_KEY)
Event code 330 (BTN_TOUCH)
Event type 3 (EV_ABS)
Event code 0 (ABS_X)
Value 3529
Min 0
Max 4095
Event code 1 (ABS_Y)
Value 375
Min 0
Max 4095
Event code 24 (ABS_PRESSURE)
Value 0
Min 0
Max 4095
Properties:
Testing ... (interrupt to exit)
Event: time 1457899907.959665, type 1 (EV_KEY), code 330 (BTN_TOUCH), value 1
Event: time 1457899907.959665, type 3 (EV_ABS), code 0 (ABS_X), value 1657
Event: time 1457899907.959665, type 3 (EV_ABS), code 1 (ABS_Y), value 2486
Event: time 1457899907.959665, type 3 (EV_ABS), code 24 (ABS_PRESSURE), value 3268
Event: time 1457899907.959665, -------------- EV_SYN ------------
Event: time 1457899907.969094, type 1 (EV_KEY), code 330 (BTN_TOUCH), value 0
Event: time 1457899907.969094, type 3 (EV_ABS), code 24 (ABS_PRESSURE), value 0
Event: time 1457899907.969094, -------------- EV_SYN ------------