ECPPLL(1)

📦
version 1.4 · 8 versions
, in ubuntu resolute, ubuntu stonking

💅 ECPPLL — Project Trellis

okay bestie, so this is the ecppll page, from the General Commands manual. Hi, welcome, we're doing PLL math together and honestly? it's giving calculator-but-make-it-fashion. 💖

✨ NAME ✨

ecppll — Project Trellis 🦋

🌸 DESCRIPTION 🌸

So ecppll is part of Project Trellis - Open Source Tools for ECP5 FPGAs, and its whole ~thing~ is being an ECP5 PLL Configuration Calculator — like, you tell it your clock frequencies and it does the math so you don't have to. Iconic behaviour, no notes.

The binary lives at debian/tmp/usr/bin/ecppll and it's Version 1.4-3. Slay.

⚠️ bestie please read this part: This tool is experimental! Use at your own risk! like... she said what she said. fr fr. 💀

Copyright © 2018-2019 gatecat <gatecat@ds0.me> — credit where credit is due, we stan. 🫶

🎀 Allowed options:

  • -h, --help — show help. the classic "help me bestie" button ✨
  • -n, --module arg — module name. name your creation 💅
  • --clkin_name arg — input signal name 🌈
  • -i, --clkin arg — input frequency in MHz 🕐
  • --clkout0_name arg — Primary Output(0) signal name 👑
  • -o, --clkout0 arg — Primary Output(0) frequency in MHz ⭐
  • --clkout1_name arg — Secondary Output(1) signal name 🦋
  • --clkout1 arg — Secondary Output(1) frequency in MHz 🍓
  • --phase1 arg (=0) — Secondary Output(1) phase in degrees 🌸
  • --clkout2_name arg — Secondary Output(2) signal name 🧚
  • --clkout2 arg — Secondary Output(2) frequency in MHz 💜
  • --phase2 arg (=0) — Secondary Output(2) phase in degrees 🌸
  • --clkout3_name arg — Secondary Output(3) signal name 🎀
  • --clkout3 arg — Secondary Output(3) frequency in MHz 💖
  • --phase3 arg (=0) — Secondary Output(3) phase in degrees 🌸
  • -f, --file arg — output to file 📁 (put it somewhere, she's not staying in your terminal forever)
  • --highres — use secondary PLL output for higher frequency resolution 🔥 precision queen
  • --dynamic — use dynamic clock control 🎛️
  • --reset — enable reset input 🔄
  • --standby — enable standby input 😴
  • --feedback_clkout arg — use Nth Output as feedback signal 🔁
  • --internal_feedback — use internal feedback (instead of external) 🫧
  • --internal_feedback_wake — wake internal feedback ☀️ (girl's been asleep, let her live)
  • --xo2 — generate MachXO2/3 PLL 🌟 ok versatile

and that's the whole page, bestie — every flag, every default, every degree of phase, all of it. go configure something gorgeous. 💅✨

anyway, ecppll 1.4-3, March 2026 — that's the version and the date, mwah, ily, bye 🎀🦋💖

📦 where this page comes from