1. Core Architecture Blueprint
The system leverages a dual-engine processing landscape to maximize computational bandwidth while controlling current consumption. Basic operating routines and high-level stack cycles execute entirely on the primary 32-bit Arm Cortex-M7 element.
2. Deep Hardware Reconfigurability
By mapping the configuration control lines of the Lattice FPGA directly to internal peripheral pins of the MCU, the system can clear and re-load configuration bitstreams directly from local storage. This allows an external node to alter its hardware processing profiles on the fly.
Design Rule: Dynamic reconfiguration isolates transient current spikes. Isolating logic lines through strict layout limits signal cross-coupling into low-noise RF paths.
3. RF Implementation & Power Isolation
The RF chain is engineered around the Semtech SX1262 transceiver, working across targeted regional open telemetry bands. High performance is maintained through precise 50Ω coplanar waveguide routing and distinct physical isolation between logic domains and high-gain antenna inputs.