Sometimes EPDC NOT generate output single

tootzoe — Thu, 14 Feb 2019 09:40:21 GMT

Hi all;

I'm porting E-ink display on Android-8.0 with imx6sl, Kernel version 4.9.17.

the main E-ink panel configure:
● P5N pixel format
● 8 SDCLK per pixel
● 16bit width SDDO

Android UI frame data is RGB565 and will be converted to 8-bit gray pixel by PXP,
now I found a strange problem, each pixel data feed to EPDC with the lower fourth bit set (e.g. 0B0011 1111) , EPDC will NOT generate output single,I have checked by ,
oscilloscope, screen no change, but when i try clean the lower fourth bit (e.g. 0B0011 0111), EPDC act correctly, have output single and screen updated well..

Does anyone tell me what's wrong with this?

Thanks!

Best Regards!

Re: Sometimes EPDC NOT generate output single

diegoadrian — Mon, 04 Mar 2019 21:44:19 GMT

Hello,

Unfortunately, the kernel that you are using, seems to be a not official kernel released by us. Furthermore, we are no longer supporting e-ink displays in our Android images, since Android is not currently supported by color-less displays. I apologize for the inconveniences this could give you.

Best regards,

Diego.

i.MX ProcessorsのトピックSometimes EPDC NOT generate output single

Sometimes EPDC NOT generate output single

Re: Sometimes EPDC NOT generate output single