Honored Contributor
Honored ContributorHi,
That diagram is just the AS part. It allows: a) the FGPA to load it's configuration on from the EPCS on power on b) you to read/write the EPCS' contents using the programmer cable c) allows the FPGA to read/write the EPCS' contents You need this circurtry, since you really want "a)". However, I'd also put in the JTAG circuitry. This allows you to, using the programming cable a) load a new configuration into the FPGA without writing the EPCS (much faster) b) use SignalTap to inspect signals within the FPGA c) read/write the EPCS' contents though the FPGA, using the SFL d) etc As for voltages, the EP3C5 is a member of the "Cyclone III" family, not the "Cyclone" family. Take some care, because there are substantial differences between the 4 Cyclone families. For Cyclone III, it's voltages are: - VCCINT: 1.2V - PLL VCCD: 1.2 V - PLL VCCA: 2.5 V - VCCIOs: 3.3V, if you want 3.3V TTL/CMOS I/Os Anyway, all of this needs to be double-checked against the guidelines and the .pin file that is produced by synthesis and against the pin connection guidelines: http://www.altera.com/literature/lit-dpcg.jsp As for packages, you can find a list of all packages used by Altera at http://www.altera.com/literature/ds/dspkg.pdf But what you problably want is to take a look at your schematic/pcb design tool's libraries. The most common ones will either include libraries for all Altera devices or you can find libraries for the latest Altera devices https://www.altera.com/support/software/download/sof-download_center.html
