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DS90UB949-Q1: To inquire with DS90UB949-Q1 HPD low status.

Part Number: DS90UB949-Q1
Other Parts Discussed in Thread: DS90UB948-Q1

Hello Team,

When we tested DS90UB949-Q1 with HDMI data inputs and DS90UB948-Q1 for LCD module, the DS90UB949-Q1 HPD pin keep a low.

With Boot-loader which is adapter from PC to DS90UB949-Q1 board for I2C, we can operate the LCD screen with HPD high signal.

However, we couldn't operate without boot-loader adapter.

In case of without Boot loader adapter,  How could we change the HPD from low to high?

When we checked the RX5V_Detect register, the register is '1' condition.

However, it still not be operated the HPD pin.

Thank you.