AM3352 Android4.2.2 problem

xin Ryan

Other Parts Discussed in Thread: AM3352, AM3358, AM3354

Hi,

We are running TI_Android_JB_4.2.2_DevKit-4.1.1 under our omap am3352 board. I compile the android with flowing command:
# make TARGET_PRODUCT=am335xevm_sk droid –j4
after the android start up, the system is slowly and when I moving the usb mouse, it is slowly too.
but, when I entry the “Settings” interface, the mouse moves flexibly
while I leave “Settings” interface , the mouse go back to slowly!

The default settings of our board is :
USE_OPENGL_RENDERER:=false
I set It to true and issue remain.
Can you give me some suggestion? Thank you

over 10 years ago

0 Biser Gatchev-XID over 10 years ago

TI__Guru**** 393215 points

Moving this to the Android forum.

0 Adeneo Embedded support team over 10 years ago

Mastermind 9310 points

Hi Ryan,

we will need to reproduce this issue before being able to really help you.

What board are you working on? beagleboneblack, starter kit, evm, custom board?
If you are working on a custom board, is it something you can reproduce on one of the 3 reference platforms?

Regards

0 xin Ryan over 10 years ago in reply to Adeneo Embedded support team

Expert 1140 points

Hi,
My custom borad starter kit design reference.
So SW Build Image select Starter kit.
But Your Starter kit Board MCU is AM3358, inluce GPU.
My custom board MCU is AM3352, have no GPU

0 Adeneo Embedded support team over 10 years ago in reply to xin Ryan

Mastermind 9310 points

Hi Ryan,

In order for us to better help you, could you please try to reproduce the issue on one of these boards: AM335x Starter kit, Am335x EVM, Beaglebone black?

0 Adeneo Embedded support team over 10 years ago in reply to Adeneo Embedded support team

Mastermind 9310 points

Hi Ryan,

By turning on "Developer options" -> "Show surface updates", we can see that in home screen, the whole screen is refreshed/redraw when mouse/cursor is moved. However in Settings application, only the cursor rectangular boundary is redrawn when mouse/cursor is moved.

Without a GPU, everytthing is done in SW. Refreshing the whole screen upon mouse/cursor movement will takes considerable amount of CPU and user can feel the lag of the movement on the screen.

0 xin Ryan over 10 years ago in reply to Adeneo Embedded support team

Expert 1140 points

Hi,
The first , I hvae your AM335x Starter kit board, the MCU is AM3354, the issue hvae no exist, so I can't reproduce the issue.
My issue hvae said very clear, Setting APP without the phenomenon, others APP is existing.
The Last, I don't know whether the issue with the GPU?

0 Adeneo Embedded support team over 10 years ago in reply to xin Ryan

Mastermind 9310 points

Ryan,

we understand that this cannot be reproduced with the reference platform since they have a GPU.
What you describe matches exactly the explanation we found:

- Some application will redraw the whole display each time you make a move event: the rendering with no GPU will be slow. HomeScreen is in that case.
- Some application will redraw only the cursor and small portions around, even with no GPU, the quantity of data to process is low, making it fast even with no GPU. Settings app is in this case.

The issue is caused by the lack of GPU on your platform, and reproduction will depend on the way application are coded.

0 xin Ryan over 10 years ago in reply to Adeneo Embedded support team

Expert 1140 points

Hi,

Thank you very much for your help, I will try to chanage AM3354.

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AM3352 Android4.2.2 problem