Description Due to a problem in the Quartus® II 15.0 software, in root port mode, reads via the Txs interface might hang (not complete) following several read access through the CRA interface.
This behavior is caused by the Avalon-MM bridge not increasing the credits consumed counters for TLPs generated from the CRA interface.
The workaround is:
- Install Quartus 14.1.
- Go to the Quartus 14.1 installation directory and find the following:
- Copy all files to the same folders of your Quartus 15.0 installation, overwriting all the existing files. Then reopen Quartus/Qsys 15.0 and re-generate the Hard IP.
- Please note the above directories are used for both Arria 10 and Arria V devices.
This is scheduled to be fixed in a future release of the Quartus software.