BECKHOFF ET1100 - Manual (Page 38)

EtherCAT IP Core for Xilinx FPGAs
34 Slave Controller – Application Note FAQ
5.3 Implementation issues
5.3.1 XST
5.3.1.1 RSA decryption keys missing (ISE)
The ISE/EDK design software might crash upon opening a project file or migrating a project file to a
newer version if the RSA decryption keys are not properly installed. Another expression of missing
RSA decryption keys is the following message:
Messages (1)
[…]
=========================================================================
* HDL Compilation *
=========================================================================
input in flex scanner failed
Process "Synthesize - XST" failed
Messages (2)
INFO:HDLCompiler:1061 - Parsing VHDL file
"/opt/beckhoff/ethercat_v2.04a/lib/EtherCAT_CLK.vhd" into library work
input in flex scanner failed
Solution
Install the RSA decryption keys according to the EtherCAT IP Core data sheet (at least two). Please
note that there are three different keys:

rsa_ethercat_base_pvt.pem (Base, version independent)

rsa_ethercat_ip__eval_pvt.pem (Evaluation license, version specific)

rsa_ethercat_ip__full_pvt.pem (Full license, version specific)