Intel® Quartus® Prime Software
Intel® Quartus® Prime Design Software, Design Entry, Synthesis, Simulation, Verification, Timing Analysis, System Design (Platform Designer, formerly Qsys)
16644 Discussions

Issue with TSE ip after quartus prime upgrade 22.4.0 build 94

Antonino88x
Beginner
595 Views

Hi,

I have updated Quartus from version 20.2 pro to the new 22.4.0 build 94. 

After manually updating all ip components, I see an issue on my design using tse version 21.0.0. These are the ip configurations:

Core variation: 10/100/1000Mb Eth MAC with 1000BASE-X/SGMII PCS

Internal fifo : enabled (2048 x 8bits both  rx and tx)

Number of ports: 1

Transceiver type :GXB

Mac option: only include statistics counters.

Device : Cyclone 10GX.

The issue seems on rx part of the mac. Analyzing internal signals with signal taps with rx_clk (internal clock), on gmii_rx_d bus I see on every rx packet that the preamble duration can change from 6 to 7 clock cycles. Every time the mac module receives a preamble with 6 clock duration it discards the packet (ff_rx_dsav is 0 and never rise).

Trying the same design with quartus  pro 20.2 and tse ip version 19.4.0, I see the same preamble variation but the mac ip always detects all rx packets as corrects.

These are my register configurations:

pcs status: 0x0000008D

pcs control:0x00000160

pcs if_mode:0x00000008

mac cmd config:0x0100013B

 

Can you please help me or have you already encountered a similar issue?

 

Thank you,

Antonino

 

0 Kudos
3 Replies
ZiYing_Intel
Employee
537 Views

Hi,


Thanks for submitting the issue.

Can share the .qar file? So that I can try debug the issue from my side.


Best regards,

Zi Ying


0 Kudos
ZiYing_Intel
Employee
504 Views

Hi,


For further information about preamble, please do refer link below, https://www.intel.com/content/www/us/en/support/programmable/articles/000083600.html


Best regards,

Zi Ying


0 Kudos
Antonino88x
Beginner
491 Views

Hi Zi Ying,

sorry if I reply late but I can't share my project (forbidden by our company). 

From your link is clear than the receiver pcs may generates preamble with 6 octets.

My question is why in this case the new version of mac ip discards the received packet?

0 Kudos
Reply