i.MX8mp: LVDS signal adjustment

[hiroakiosawa]

Hi.

I've been designing  i.mx8m plus board that using LVDS. Now I try to fix the  EMI matters on lvds signal to adjust the lvds signal strength with using "CC_ADJ" bits on LVDS_CTRL Register. (Naturally, lvds's tx/rx impedance is already matched at 100Ω.)

Some LVDS_CTRL Register bit description has not present specific values on i.MX8M Plus Reference Manual (screenshot attatched). Does NXP has any information for those registers ?

[rajeevsv]

Hi NXP team,

Could you please send the additional description to me as well. Need to tweak that LVDS_CTRL register,

Thanks in advance,
Rajeev

[igorpadykov · Accepted solution]

Hi Hiroaki

additional description was sent you via mail.

Best regards
igor

[agunel]

Hi NXP team,

I also need this information. We use imx8qm with a touchscreen on LVDS1_CH0. Is it possible to change drive strength from device tree. We are using Yocto with 5.15 kernel.

[yogeshbsa89]

Hi Igor,

I also need this information .

could you please share this information with me.

Regards,

Yogesh

[Marcel_ArrowCE]

HI NXP Team, 

I need also this information. 

Can you also share with me? 

BR

Marcel