Other Parts Discussed in Thread: AFE7950
Hi,
Tried interfacing the AFE7950. But not fully successful. Need help
1. I am able to get the UI popup after setup and devinit. In UI I am configuring the interface for 24410 [Mode5] as well as 44210 [mode4]. In the first one the lane speed was 9830.4 Mbps and for the 2nd one 4915.2Mbps. I have configured my FPGA GTP for this speed and I am getting clockout from GTP as expected.
2. However, receive pattern is not the K28.5 [tried several tens of times with different bit files]. Similarly, SYNC [SYNCBOUTP0 pair] is not responding for the K28.5 [it stays LOW] transmitted out [Tried count of 4 and multiples].
3. Receive GTP out [there are 8 outputs each of 40 bits. Expected K28.5 characters in 10B format, but what comes out is total junk]. As I think, AFE7950 is not getting configured at all. Only clock [LMK] is getting configured [as I am getting all clocks correct, including Sysref].
Please suggest where/what to look at.
[Tried attaching screenshots, but it is not taking it]
Thanks,
Shivaprasad
