AM5728: ARGB8565 DSS output

allen.zhang

Part Number: AM5728

Our product needs to support ARGB8565 format data output from dss to fpga . The dss input format is ARGB8888. How can I achieve this? Is there any good advice?

over 5 years ago

0 Biser Gatchev-XID over 5 years ago

TI__Guru**** 393215 points

DSS output pixel formats are RGB24-888 and YUV4:2:2 (YUV4:2:2 only available when BT mode output is enabled).

0 allen.zhang over 5 years ago in reply to Biser Gatchev-XID

Intellectual 365 points

Hi Biser

Thanks for your prompt reply.
I Know this, but we do have this requirement. The DSS output(ARGB8565) needs to be composed with the fpga data and then displayed on the lcd. Is there a way to modify the driver code to achieve this? I don't know if anyone else has encountered a similar situation.

Regards,

Allen

0 Biser Gatchev-XID over 5 years ago in reply to allen.zhang

TI__Guru**** 393215 points

This is a hardware limitation on the DSS output. You have a maximum of 24 LCD data pins. You could possibly modify the driver to output the data you require, but this is not an use case supported by TI.

Processors

Processors forum

AM5728: ARGB8565 DSS output