i.MXRT1050 LCD dot clock setting

[sugiyamatoshihi]

Hi,  

When i.MXRT1050 connect to LCD, how to set  DOT clock of LCD?

Does dot clock is direct to connect LCDIF_CLK_ROOT?

Is there any clock divider between LCDIF_CLK_ROOT to DOT clock?

Best Regards,

Sugiyama

[fangfang]

You can  set the DOT clock refer to the reference manual.The LCD_DOTCLK is max 75MHz, see LCDIF_CLK_ROOT in Reference Manual. And defult the value of the divider is 1 between with LCDIF_CLK_ROOT to DOT clock. Hope it help you.

Have a great day,
TIC

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[sugiyamatoshihi]

Hi, TIC team,

Thank you for your answer.

I' not sure which divider are you specified LCDIF_CLK_ROOT to DOT clock?

I can see LCDIF_PODF(default=1/4), and LCDIF_PRED(default=1/4), but I couldn't  find the other register for LCDIF clock.

Could you specify the register name?

Best Regards,

Sugiyama

[fangfang · Accepted solution]

Hello,

 Unfortunately, I can't find the other register for LCKIF clock. But the  DOT clock please refer to the document. URL:https://www.nxp.com/docs/en/application-note/AN12302.pdf.

[sugiyamatoshihi]

Hi, fangfang,

Thank you for your answer.

I understood.

Best regards,

Sugiyama