Wire library python driver#
Wire library python manual#

what i want to avoid is doing a whole bunch of manual touch-up each time i insert something in the middle, because then i feel like i might as well be drawing schematics in ascii art (which is how i generally do it today). i have made several false starts but i haven’t come at an abstraction that seems useful. I really want a scripting language that defines schematics. Posted in Tool Hacks Tagged EDA Software, PCB design, PCB routing, python Post navigation

Wire library python driver#

You may remember two of his embedded systems development tools that we covered back in 2018 - the SPI Driver and the I2C driver.

Check it out yourself by visiting the GitHub repository, where he writes in more detail about his motivation and various techniques. That said, we like the concept and routing methodologies he has implemented in CuFlow. Perhaps, if CuFlow were melded with something like the SKiDL Python schematic description language, the concept would gain more traction? However, CuFlow further obfuscates the interconnections by burying them deep inside the wire connection details. We completely agree with ’s frustration with so many schematics these days being nothing more than a visual net lists, not representing the logical flow and function of the design at all. Routing to complex packages, like the BGA shown, is made easier by embedding signal escapes for each part’s library definition. He also makes extensive use of pin / gate swapping to make the routing smoother, and there’s a nifty shuffler feature which arbitrarily reorders signals in a crossbar manner. River navigation is performed using Turtle graphics-like commands such as left(90) and the appropriately named shimmy(d)that aligns two displaced rivers. Connections get to their destination by taking one or more of these rivers which can be split, joined, and merged along the way as needed in a very Pythonic manner. Key to this project is a concept calls rivers - the Dazzler board shown above contains only eight of them. Whether or not you’re on-board with the concept, you have to admit the results look pretty good. Preferring to spend hours typing code instead of graphically pushing traces around in a PCB layout tool, over at ExCamera Labs has developed CuFlow, a method for routing PCBs in Python.