Jullia & RubyCircuit
Hey Jullia, how about we sketch out a modular low‑power microcontroller platform that we can reconfigure on the fly? I’ve got some ideas on tightening the power rails and squeezing out efficiency.
Sounds like a great challenge. Let’s start by pinning down the core blocks: a flexible power‑management unit, a modular sensor bus, and a tiny, high‑speed core that can shut down unused peripherals. We can use a buck‑boost regulator that’s tunable with an external DAC to keep the rails stable no matter the load. For the bus, I’d lean on a hybrid I²C/PCIe‑style interface so we can hot‑swap modules. What’s your take on the clock source? A low‑jitter crystal or a PLL‑driven OSC? We’ll need to keep the die size small, so every pin counts. Any particular use cases you’re targeting first?
I’d lock the core onto a low‑jitter crystal for baseline stability, then feed it into a low‑phase‑noise PLL only when we need that few‑MHz boost for the PCIe link. That keeps the silicon lean and lets us tweak the clock without adding extra pins. For first use cases, let’s target a power‑sensing module for remote IoT nodes and a small imaging sensor array for edge‑AI; both need tight power budgets and fast wake‑ups. Sound good?