TDA2EVM5777: SEL_HDMI_I2C2

user3829173

Intellectual 420 points

Part Number: TDA2EVM5777
Other Parts Discussed in Thread: TDA2

Hello

I'm studying the schematics of TDA2EVM5777

Why RU108 select for HDMI I2C is connected to TDA2 ball E15

I checked the MUXMODE of ball E15

there's no GPIO function in E15

which function do E15 use to select HDMI I2C?

thanks~

over 5 years ago

0 Yordan Kamenov over 5 years ago

TI__Mastermind 42515 points

Hi,

I have forwarded your question to an expert for comment.

Regards,
Yordan

0 Lyuben Aleksiev over 5 years ago

TI__Prodigy 515 points

Hi user3829173,

Could you please show me the TDA2EVM5777 schematic that you exploring?
According to Vision Application Board Schematic Rev D.pdf - link - www.ti.com/.../sprr225 (TDA2EVM5777), the HDMI SCL/SDA pins of RU108 must be connected to F17 (i2c2_scl) and C25 (i2c2_sda).

Regards,
Lyuben.

0 user3829173 over 5 years ago in reply to Lyuben Aleksiev

Intellectual 420 points

Hi Lyuben

The schematics file name is "516582H_VAYU_EVM_13NOV2015_H",but I don't know how to provide you the link.

What I confused is not I2C scl & sda,but the select pin of RU108

Pin1 of RU108 is connected to ball E15 of TDA2

but there is no GPIO function in ball E15 , why can E15 control the select pin of RU108?

Thank you~

0 Mariya Petkova over 5 years ago in reply to user3829173

TI__Expert 4885 points

user3829173,

If you want to attach files, links, etc. go to the right corner under the replay box and push Insert Code, Attached Files and more

Regards,
Mariya

0 user3829173 over 5 years ago in reply to Mariya Petkova

Intellectual 420 points

I found the answer in the VAYU_CPU_User_Guide_1_320151029 p34

thank you

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TDA2EVM5777: SEL_HDMI_I2C2