![]() ![]() On the FPGA side, the pins are assigned to the hardware description language signals that form the logic implemented in the FPGA. ![]() The challenge to integrating an FPGA on your PCB successfully is in routing your power, ground, configuration, clock, and user I/O signals properly.Ĭonnecting the right traces to an FPGA on a PCB can be a difficult task. Rather than designing a system with hundreds or even thousands of logic ICs, FPGAs provide the same design freedom in a single IC. Using FPGA technology allows designers to implement nearly any logic-based functionality in their device. The trend towards system-on-a-chip devices has increased the use of FPGAs. But in devices that have components with high pin density, like FPGAs or microcontrollers, routing your signals can quickly become a complicated mess of crisscrossing connections in your PCB layout. Pin swapping may not be so important in simpler designs with a low number of components. If you find that your design is a rat’s nest, it can be cleaned up by doing a pin swap in your PCB. Moving between schematic and layout leaves room for ambiguity, and it is up to the to route traces such that crossover is minimized. ![]() No matter how much planning goes into your PCB designs, you may find yourself in the position of your pin swap during trace routing. ![]() If you are routing traces between an FPGA and external logic ICs on your PCB, your design might look like my mess of cords on moving day. If I had taken more time to pack them properly, they probably would not have become tangled. When I reached into the box to pull out my audio cords, power cords, and extension cords, everything was a tangled, helpless mess. I recently moved into a new apartment, and it was time to unpack all of my electronics. ![]()
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