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Nov 3, 2011
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FPGA DVB-S Encoder for DigiLite-ZL This codebase provides synthesizable RTL for encoding an MPEG transport stream (TS) into a sequence of symbols suitable for generating a QPSK waveform. Hardware: This project targets the DigiLite-ZL modulator board and Terasic DE0-Nano FPGA development board (Altera Cyclone IV-E). Details can be found at the following URLs: http://www.idesignz.org/DigiLiteZL/DigiLiteZL.htm http://www.terasic.com.tw/ Much of the core-logic, however, is not really platform-specific and should lend itself to re-use in other projects. Synthesis: Altera's Quartus II software is used for synthesis. At the time of writing, the latest version is 11.0 SP1. The freely-available Web Edition of Quartus (which supports a subset of Altera FPGA parts, including the Cyclone IV E used on the DE0-Nano) may be downloaded from Altera's website at http://www.altera.com. Once installed, an FPGA image can be built by opening the zl_top.qpf file located in the syn/de0_nano directory from within Quartus, and selecting "Start Compilation" from the Processing menu. The compiled FPGA image will be called zl_top.sof in the project directory. The SOF file may be loaded into the FPGA over JTAG by using the Quartus Programmer (found in the Tools menu). Finally, a .jic file may be produced via File->Convert Programming Files. This file can be loaded on the serial configuration ROM on the DE0 board to automatically load the FPGA at power-up (to avoid needing JTAG programming each time). Simulation: The sim/ directory contains a couple of quick and dirty test harnesses and a sample TS file. They are pretty rough around the edges, but should allow basic simulation and validation of the design against a golden reference implementation (like GBDVB for example). The free version of ModelSim supplied with Quartus will run the tests. Any other Verilog simulator should do as well. Questions? Contact firstname.lastname@example.org.