Rotating needle flicker images

Question

Hello, i rotate a needle as bitmap on a tachometer as bitmap.

In EW everything seems fine, but when flashing on target i get flicker effects:

with effects:

without:

even the icon on the left side get effected.

I tried also rotating needle with setting tachometer invisable, in that case there are no effects.

Seems like performance issues ? 

What can i do to avoid this effects ?

 

Thank you for helping.

Answer 1

Hello Pablo,

please provide more details about your target, the display, the system configuration, .... otherwise it is not possible to provide helpful advices.

Best regards,

Manfred.

Comments

Im using NXP.iMX_RT.Index8 platform package.

 

Default conversion mode of Bitmap Resources: Compressed

Estimated total memory (flash) usage: 2000 KB

Total size of all generated files: 13389 KB

 

Controller : IMX1064

Display:  5" TFT color display; 800x480
Manufacturer: Powertip Tech. Corop, Taichung, Taiwan
Type: PH800480T030-ZHL

My screen has 3 tachometer which 3 needles which rotate.

Reducing them also reduce the flicker effects

The data to rotate the needles comes every 100ms

 

Any idea ?

---

Thanks for the additional information.

Can you share some video so that we can see the flickering issue? There are a couple of different effects that are described as flickering.

Additional question: Why are you using the Index8 color format on the iMXRT1064 target? Most of the drawing operations have to be done by CPU.

Best regards,

Manfred.

---

Can i send it to you in an private email cause of data privacy ?

We using Index8 cause of no external flash, so we not have enough space.

---

Sure, please send it to support@embedded-wizard.de