Hardware Examples
Hardware Example 02 — I²C FRAM Persistence
Physically proven MB85RC256V persistence on the existing BSP-owned shared I²C bus.
PHYSICALLY PROVEN / CLOSED
The production Waveshare ESP32-P4-WIFI6-Touch-LCD-7B detected and identified an MB85RC256V at address 0x50 on the existing BSP-owned bus: GPIO7 SDA and GPIO8 SCL.
Identity, write, read and persistence proof
| Proof | Result |
|---|---|
| Physical Device-ID | MB85RC256V identified at 0x50 |
| Write / read / verify | PASS |
| Complete power cycle | counter=9, value=0xA553, verify=PASS |