search

apollo-lhc / ApolloSM_plugin

ApolloSM control class and BUTool plugin
2 stars 5 forks source link

C2C link doesn't come up after unblockAXI after toggling firmware on KU15P #69

Open rzouCERN opened 2 years ago

rzouCERN commented 2 years ago

With the current develop branch (GIT_HASH 4a14db5), the C2C link stops working after toggling the firmware on the KU15P.

To reproduce the issue: on cms@apollo09:

  1. Set up the current develop branch of BUTool

  2. program both FPGAs with firmwares with up-to-date c2c configs:

    svfplayer rzou/top_Cornell_rev1_p1_KU15p-2-SM_7s.svf PLXVC.XVC_1
svfplayer rzou/top_Cornell_rev1_p2_VU7p-1-SM_7s.svf PLXVC.XVC_1

  3. both FPGAs should appear under status after unblockAXI

  4. program the KU15P with an older firmware: svfplayer rzou/top_Cornell_rev1_p1_KU15p-2.svf PLXVC.XVC_1

  5. program back the original firmware and do unblockAXI:

    svfplayer rzou/top_Cornell_rev1_p1_KU15p-2-SM_7s.svf PLXVC.XVC_1
unblockAXI

KU15P disappears from status in BUTool One can get back the link by disabling phy contrl and manually initializing the link, but there will be errors.