i.MX ProcessorsのトピックRe: How to display pictures on IMX8QXP M4 core

How to display pictures on IMX8QXP M4 core

relax-wu — Wed, 12 May 2021 08:15:15 GMT

CPU：imx8qx6avlf
SDK：Android Q10.0.0_2.2.0_AUTO
lunch mek_8q_car_userdebug

We noticed that the NXP logo will be displayed when the machine is turned on. It is converted into an array and placed in rear_view_camera/nxp_logo.h.

/* * Copyright 2018 NXP * * SPDX-License-Identifier: BSD-3-Clause */ #define NXP_LOGO_WIDTH (200) #define NXP_LOGO_HEIGHT (150) static const uint8_t NXP_logo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······ }

How do you convert the picture into an array? I want to replace the NXP logo with my own picture.

Re: How to display pictures on IMX8QXP M4 core

jimmychan — Wed, 02 Jun 2021 09:47:23 GMT

Unfortunately, I cannot find a script to change the image.

According to the code rear_view_camera.c, there is a #define "APP_MAKE_COLOR(red, green, blue)". And for an example, the white color is define as APP_COLOR_WHITE APP_MAKE_COLOR(0x1F, 0x3F, 0x1F). I think you may search any tool (e.g. from google) to convert the image file to RGB hex. And then use the APP_MAKE_COLOR(red, green, blue) to create an array of your logo image to replace the NXP logo.

Re: How to display pictures on IMX8QXP M4 core

relax-wu — Thu, 03 Jun 2021 01:49:17 GMT

Sorry, I made a mistake. We don't know how to customize the boot animation. Because M4 controls the display at the beginning, and finally Android controls the display.

Re: How to display pictures on IMX8QXP M4 core

jimmychan — Thu, 03 Jun 2021 08:45:48 GMT

I think it is the logo for u-boot and for Android.

FYI. I hope this link can help you.

https://community.nxp.com/t5/i-MX-Processors-Knowledge-Base/Patch-to-support-uboot-logo-keep-from-uboot-to-kernel-for-NXP/ta-p/1120770

Re: How to display pictures on IMX8QXP M4 core

relax-wu — Thu, 03 Jun 2021 09:07:09 GMT

Refer attachment 8.1.1 Interfaces to control the EVS function

This is in M4.

Re: How to display pictures on IMX8QXP M4 core

jimmychan — Thu, 03 Jun 2021 09:21:35 GMT

For the EVS, I need to check with the internal AE. I will let you know when I get the reply.