After installling Quartus on a x86_64 fedora 26, I fell upon the lib12.so.0 error. $ quartus quartus: error while loading shared libraries: libpng12.so.0: cannot open shared object file: No such file or directory The simple solution is $ sudo dnf install libpng12-devel.i686 Unfortunately I was not unable to program the bitstream on the fpga, thus […]
This blog post is about how to run Modelsim Intel-Altera 10.5c on Fedora 26 (4.12.13-300.fc26.x86_64) after its installation. Modelsim Intel-Altera 10.5c comes with intelFPGA_pro 17.0. First install the 32-bit libraries. $ sudo dnf install glibc.i686 zlib.i686 bzip2-libs.i686 libXft.i686 libXext.i686 ncurses-compat-libs.i686 Download the freetype of el7 from here and copy the so files to modelsim’s internal directory. […]
It is not the first time I was caught with Xilinx’s report on resource usage by hierarchy. By default, Xilinx’s toolchain has its CLB Pack Factor Percentage defaulted to 100% (minimum packing density). Which in other words means that it will relax the constraints on how many device resources are allocated. Thus during the map phase, […]
NIOS II programming is easy with the default include files and functions. An alternative to write to registers using simple C programming can be the following: IOWR(SENSOR_BASE,0,0xAA); IOWR() uses the ‘stio’ instruction in order to bypass the data cache. int *sensor_reg0 = (int)*SENSOR_BASE; *(sensor_reg0) =0xAA; SENSOR_BASE, which is an address in this example, should have […]
QSYS does not load signals if the top-level module’s signals are of type std_ulogic.
With signaltap, when the signal is highlighted in red, it is because the signal is invalid after analysis and elaboration. It could be that the signal is not driving anything and got scrapped off. Alternatively, the technology viewer might help to debug.
Installing Altera Quartus on Fedora 20 64-bit: $ ./setup.sh You must have the 32-bit compatibility libraries installed for the Quartus II installer and software to operate properly. Solution: # yum install glibc.i686 libXext.i386 libX11.i386 libXau.i386 libXdmcp.i386 freetype.i386 fontconfig.i386 expat.i386
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 […]
Detecting the device : $ ./papilio-prog -v -c Could not access USB device 0403:6010. If you receive this error message, then the user isn’t part of the plugdev group. $ ./papilio-prog -v -c Using built-in device list JTAG chainpos: 0 Device IDCODE = 0x11c1a093 Desc: XC3S250E ISC_Done = 0 ISC_Enabled = 0 House Cleaning = […]