A registered peripheral model runs in the engine: the firmware talks to it over the real bus and gets device-accurate responses.
Simulated device model
Built from the datasheet. Implemented from the part’s register documentation and exercised by automated tests. Nothing physical was ever placed next to it.
UART
| Pin | Type | Role |
|---|---|---|
VCC | power_in | — |
GND | power_in | — |
TX | output | uart_tx |
RX | input | uart_rx |
Modelled from u-blox NEO-6 datasheet.