I can not get nothing on serial ports after I get the SABRE Lite i.MX 6Quad board shipped from my colleague in remote office.
I connect the USB/OTG with host computer, connect serial port with host, insert SD card into the board, and supply power to the board, but I can not get anything from the host serial port.I use MFG tools to download Linux image into the board. The MFG tools panel show that all operations process well and completed, but I can not get anything on the host serial port. I test Jack17, namely RS-232 Serial port with oscilloscope, and Pin 4 ( UART2_TXD ) has signal when power on the board, while others haven't. The only thing I get on the host serial port is "0x00" as I plugin USB B into the OTG USB port after power supply the board.
What's the problem with my board?