FPGA Intellectual Property
PCI Express*, Networking and Connectivity, Memory Interfaces, DSP IP, and Video IP
Intel Support hours are Monday-Fridays, 8am-5pm PST, except Holidays. Thanks to our community members who provide support during our down time or before we get to your questions. We appreciate you!

Need Forum Guidance? Click here
Search our FPGA Knowledge Articles here.
5914 Discussions

Need help on 1588 TOD clock configuration register Read/write.

Honored Contributor II


I am working on 1588 TOD clock IP, I have used the default configurations while generating the Altera TOD IP. In simulation, After few nano seconds, I am writing random value in Seconds L, Seconds H and Nanoseconds registers. When i am trying to read the registers i am unable to read those registers which i have written. Please see the below read values. Please help me out with how to read the full register values.  


write value of Nanoseconds= 8484d609 

read value of Nanoseconds=8000d609  


write value of Seconds L=c0895e81 

read value of Seconds L=00095e81  


write value of Seconds H=12153524 

read value of Seconds H= 00000000 





0 Kudos
0 Replies