Standard TTL console at 3.3 volts, using following test pins on PCB:
| Testpoint | Signal |
|---|---|
| TP8 | GND |
| TP11 | TX |
| TP4 | RX |
| TP10 | +5v |
Params: 38400 8N1
Serial console input is software-disabled by boot loader.
RTL8197FS SoC
Winbond W25M01GV 1G SPI NAND, 128MiB
| Testpoint | Signal |
|---|---|
| TP13 | GND |
| TP16 | /CS |
| TP17 | DO |
| TP18 | /HOLD |
| TP19 | CLK |
| TP20 | DI |
|
Model MHCB03R
EFR32 MG18232G6
