TFP410

MT12

Other Parts Discussed in Thread: TFP410

Hello,

I am trying to configure the TFP410 in i2c. I am running 12 bits of data, DVI DE, DVI CLK+, DVI CLK- to the device from my FPGA. The other 12 bits are grounded. Unfortunately I am unable to get anything on the screen. I am also using the HTPLG pin, and my clock is single ended. How do you recommend configuring the I2C?

over 12 years ago

0 Elias Villegas M. over 12 years ago

TI__Guru* 76130 points

Hello,

Can you provide your schematic?

Regards

0 MT12 over 12 years ago in reply to Elias Villegas M.

Prodigy 120 points

The HTPG is connected to the DVI and gets 3.3V when High.

0 Elias Villegas M. over 12 years ago in reply to MT12

TI__Guru* 76130 points

Hello, there are some errors on the schematic:
SDA and SCL require an external 5k pull-up.
IDCK- should be connected to ground for single end clock source.

You can see the I2C operation description on Pages 16 to 22 at the TFP410's datasheet.
Remember that when the device is in i2c mode, the PD# bit is set by default and after a Reset.

Regards.

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TFP410