opencores I2C’s size on FPGA

For one of my home based projects, I was tight on my Altera Cyclone IV 22K FPGA and had only 90 LEs left. I needed an I2C controller and opted for the opencores’ I2C controller. A quick trial on Quartus Altera 13.1 without constraints after fitter stage gave a total of 283 logic elements and …

F-14 – error with Quartus 11.0

While installing Quartus 11 on Fedora 14, I hit this small issue: quartus: error while loading shared libraries: cannot enable executable stack as shared object requires: Permission denied Solution (as root): $ cd /opt/altera/11.0/quartus/linux $ execstack -c