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Mipi-dsi display problem

Yli.8
Associate II

1,What is the reason for setting the display frequency to 50HZ instead of 60HZ?

0690X000009jAoCQAU.png

2, I designed a circuit board, using mipi to HDMI chip, and found that using 60HZ frequency to drive the display will jitter.

1 REPLY 1
AntonioST
ST Employee

Hi,

ST boards use 50Hz instead of 60Hz only to save some internal bus bandwidth that, depending on use cases, could be better used by other applications/subsystems.

You have to check that all the timings fit with the spec from the display manufacturer. In general, changing only the field vrefresh is not enough.