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Hello,
i have a little problem to implement a lvds transceiver interface to my Cyclone IV GX design. The Transceiver interfaces are directly connectet to the FPGA, you can see this on the screenshot. And my idea was, that i connect on the LVDS pin a ALTLVDS_rx or ALTLVDS_tx block to serialize or deserialz the data what i want to send. and my problem is jet, how can i make i rx_inclk, tx_inclk or txsyncclk ? I have no external clock for this. my Board is the DB4CGX15 from Devboards: http://devboards.de/shop/artikeldet.php?proid=6852&bez=db4cgx15&sid=f0a8d7bc6ef75bd20ce55f47bd8aca53&phpsessid=f0a8d7bc6ef75bd20ce55f47bd8aca53 Thanks.... if you have any questions, about my problem pleas tell me this...Link Copied
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Hi,
I have a second problem with the Cyclone IV GX Transceiver I Use the Quartus 11.0Sp1 Software and i have the same Error Message: error: I/O bank QL0 contains input or bidirectional pins with I/O standards that make it impossible to choose a legal VCCIO value for the bank info: Can't select VCCIO 1.5V for I/O bank due to 1 input or bidirectional pins info: Input or bidirectional pin rx_datain[0] uses I/O standard LVDS like in this Thread: http://www.alteraforum.com/forum/showthread.php?p=130079#post130079 have any one a solution?
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