AM623: pixel clock

J-ZHOU8

Part Number: AM623

Hi experts

Hope this finds you well.

In the AM6234 processor's DSS, I want to connect a low-resolution LCD panel (320 x 240 pixels, 6.3 MHz pixel clock) to the LVDS output. Is it possible to use it at this low clock rate?

Regards,

Zhou

3 months ago

0 Anastas Yordanov 3 months ago

TI__Expert 8330 points

Hello Zhou,

Thank you for your query !

You may want to check vs the following E2E thread on the topic:

AM62x: supported minimum resolution on OLDI

Looks like pixel clocks below 7 MHz are not supported by OLDI LVDS ports but I will additionally discuss with the topic owner - Stan Stilyanov.

Please expect a response tomorrow.

Thank you !

Kind Regards,

Anastas Yordanov

0 J-ZHOU8 3 months ago in reply to Anastas Yordanov

TI__Intellectual 2970 points

Hi Anastas, Hi Stan

Thnak you.

Just would like to check if any update here please?

Regards,

Zhou

+1 Stanislav Stilyanov 3 months ago in reply to J-ZHOU8

TI__Mastermind 24240 points

Hi Zhou,

Unfortunately there is a hardware limitation that makes impossible to set frequencies below 7 MHz. Please refer to the below e2e thread:
AM625: AM62 16MHz (small displays don't work)

Regards,

Stan

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AM623: pixel clock