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About EDID of HDMI sink device via DDC_SCL/SDA in i.MX6DQ.

Question asked by Keita Nagashima on Feb 4, 2016
Latest reply on Feb 9, 2016 by alejandrolozano

Dear All,

 

Hello. I have questions about EDID of HDMI TX, we met some problems.

 

Background:

i.MX6D (MCIMX6D6AVT10AD) chip is used.

Please refer to below hardware connection. Config of pins is as followed:

- MX6Q_PAD_EIM_EB2__HDMI_TX_DDC_SCL

- MX6Q_PAD_EIM_D16__HDMI_TX_DDC_SDA

 

When we read EDID of HDMI sink device though HDMI_TX_DDC method, no signal is found on SCL & SDA.

 

Questions:

1) On MCIMX6D6AVT10AD chip (on which HDCP encryption is disabled), can we use HDMI_TX_DDC method, rather than common I2C method, to read EDID of HDMI sink device?

2) If HDMI_TX_DDC method can be used, could you please help us to check how to solve the problem of no signal on SCL & SDA?

 

Best Regards,

Keita

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