I use two xc6vlx240t on my board, and transmit data by four gtxs. Every gtx work at 2.5Gbps. When xc6vlx240t loads program file from spi flash at powering up, the status of gtxs may be right or wrong. If the status is wrong, configure xc6vlx240t on-line from chipscope can turn it right. What is wrong of the gtx design?