IMX6SLEVK + IMXEBOOKDC4

raadel — Thu, 25 Feb 2021 14:24:23 GMT

What would be the most recent and known good Linux version (Yocto Project User's Guide version), distribution and image configuration to be used with IMX6SLEVK and IMXEBOOKDC4 EPDC addon?

Previously, I tried according to IMXLXYOCTOUG (Rev. L4.9.88_2.0.0-ga, 05/2018) using:

DISTRO=fsl-imx-fb MACHINE=imx6slevk source fsl-setup-release.sh -b build-fb

echo "UBOOT_CONFIG = \"epdc\"" >> conf/local.conf

bitbake fsl-image-validation-imx

The compiled image included EPDC test applications, but the framebuffer device for EPDC (/dev/fb2) was always incorrectly configured for 800x1200 resolution:

root@imx6slevk:/unit_tests/Display# ./mxc_epdc_fb_test.out

---- Running < ./mxc_epdc_fb_test.out > test ----

Opened EPDC fb device /dev/fb2
Set the background to 16-bpp
screen_info.xres_virtual = 800
screen_info.yres_virtual = 1280
screen_info.bits_per_pixel = 16

Now I tried to use the more recent version of the Yocto Project User's Guide (Rev. L5.4.70_2.3.0 — 31 December 2020), but I'm not sure what distro and image configuration to use for EPDC on IMX6SLEVK + IMXEBOOKDC4.

Re: IMX6SLEVK + IMXEBOOKDC4

nxf63675 — Thu, 15 Apr 2021 22:59:30 GMT

Hi raadel,

You can use the DISTRO=fsl-imx-fb MACHINE=imx6slevk source imx-setup-release.sh -b build-fb of course adding the epdc and for change the resolution you can use this on U-boot:

setenv bootargs console=${console},${baudrate} root=${mmcroot} epdc video=mxcepdcfb:ED060KG2C1,bpp=16 max17135:pass=2,vcom=-2560000

Regards,

Israel.

i.MX ProcessorsのトピックIMX6SLEVK + IMXEBOOKDC4

IMX6SLEVK + IMXEBOOKDC4

Re: IMX6SLEVK + IMXEBOOKDC4