How to add an userlogic to the tri-state bridge?

RemyMartin,

if you use 'Create New Component' you will be guided in a message box. Add the signals you need and watch the message box for hints ( e.g. regarding input / output). Use e.g. 'new avalon tristate slave' as interface for every signal, then go to submenue 'interface', enter a name, set timing parameters. Now go to 'Component Wizard' and assign a new Component Name (instead of 'untiteled').

After finishing you have a new component which can be added (as a copy). Editing this component later, does not change components already used.

Due to faults the signals &#39;read&#39;, &#39;write&#39; and &#39;outputenable&#39; are never shared. You have to close SOPC-builder open the corresponding .ptf file and add <is_shared = "1"> to the pin settings. The signal &#39;irq_n&#39; will be ignored, &#39;irq&#39; can be used. The legacy component &#39;Interface To User Logic&#39; is easier to handle and functions well.

Use Alteras &#39;mnl_avalon_bus.pdf&#39; for signal and timing reference.

hope this helps.

Mike