I am working on a DP to DVI converter using SN65DP149 IC. Manufactured the PCB, assembled but it is not functioning.
I am using pin strapping for configuring the converter as follows:
I2C_EN/PIN is low, pin strap mode
EQ_SEL/A0 pin is floating. adaptive EQ
SLEW_CTL pin is high, fastest data rate
PRE_SEL pin is floating, 0dB
HDMI_SEL/A1 pin is high, configured for DVI
DP connector is about 5 cm from IC (on flex part of the converter), DVI connector is over a 40cm cable. Differential pairs are twisted.
When measured pins, OE pin is about 2.5V. When connected to the source and monitor, HPD_SNK pin is 5V, HPD_SRC is 3.3V, I2C pins are pulled up.
Attaching schematic of my board: