search

dinyar / uGMTfirmware

Firmware for the CMS uGMT.
0 stars 4 forks source link

Duplicate outputs to uGT #317

Closed dinyar closed 8 years ago

dinyar commented 8 years ago

The uGT can be run as a multi-board system, consisting of a maximum of 6 AMC modules. Each of these boards needs to receive a copy of the uGMT outputs. We need to send our result on 6x 4 channels in parallel. This will also necessitate to move the channels used for intermediate results to other links.

It would probably make sense to use channels 0-23 for final muons intended for uGT while channels 24-35 will carry intermediate results.

dinyar commented 8 years ago

@thomreis is maybe interested in this issue as it might mean changes in the unpacker?

thomreis commented 8 years ago

In that case we do not plan to unpack 6x the same muon I guess. Since the intermediate muons are currently not unpacked no changed to the unpacker necessary for the moment.

dinyar commented 8 years ago

This has been implemented in firmware. It would be good to adapt the testbench for the integration patterns for this though (serializer and sort and cancel patterns can remain the same). We now send the outputs to the uGT six times (i.e. links 0-3 are replicated on links 4-7, etc. until link 23) and intermediates then only on links 24-31.

thomreis commented 8 years ago

Testpatterns have been updated with https://github.com/thomreis/uGMTScripts/commit/2b7ea5366a4fec8fbda43227c71985123318910e