I use the FPGA of cyclone V which type is 5CGXFC3B7F23C8N ,which has 1 GXB Bank （3 transceiver channel）,CH0/CH1/CH2，but CH1 has error

​Hi,

For the differential crystal, it is recommended for you to monitor with oscilloscope to check on the signal to see if meeting your expectation or specs.

As for the transceiver toolkit, to use transceiver toolkit with CV devices, you would need to use the example design from the following:

https://www.intel.com/content/www/us/en/programmable/support/support-resources/design-examples/design-software/on-chip-debugging.html

Ideally you should use the same version of Quartus with the design examples. However, you may try to compile the design in new Quartus and then try with transceiver toolkit.

Thank you.