STM32MP157 SII9022 I2C always busy

[Mokail]

I used the i2c4 for sii9022 chip,but it always busy and don't response for hdmi plug in.

[Yli.8]

hi:

Thank you for your reply.

It is impossible for me to replace the esd chip on this board. Could you please introduce the specific way of pull up res

[Yli.8]

hi:

Thank you for your reply.

It is impossible for me to replace the esd chip on this board. Could you please introduce the specific way of pull up res

[Yli.8]

hi

Thank you for your reply

It is impossible for me to replace the esd chip on this board. Could you please introduce the specific way of pull up res

[Mokail]

What is the phenomenon of your board now？hdmi no picture?

[Yli.8]

Direct use of hdmi to connect the display, with hdmi to VGA is not. Test dk1 with hdmi to VGA and display

[Mokail]

Can you post the hdmi circuit diagram？

[Yli.8]

[Mokail]

It seems that this esd chip has a bug, you can try another hdmi display and try it, the esd I used for the first time also has problems

[Yli.8]

hi:

Thank you for your answer

I don't know if there is any other way to solve it.

[Mokail]

1.Replace your board hdmi esd.

2.Replace your hdmi display or cable.🙂