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| dgs-1210-10p [2022/04/25 15:06] – [Hardware] Correct system UART part (J8 -> J3) svanheule | dgs-1210-10p [2022/04/25 15:52] (current) – Tag with JTAG svanheule | ||
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| Power is supplied via a 54V 1.6A barrel connector. PoE budget is 65 W with 30 W maximum per port. | Power is supplied via a 54V 1.6A barrel connector. PoE budget is 65 W with 30 W maximum per port. | ||
| - | A Serial header is found at J3. Pins are Vcc(3.3V, Square), TX, RX and GND. Serial connection is via 115200 baud, 8N1. | + | A Serial header is found at J8. Pins are Vcc(3.3V, Square), TX, RX and GND. Serial connection is via 115200 baud, 8N1. |
| The exchange between the ARM microcontroller and the RTL SoC can be snooped by connecting a logic analyzer to header J9. Square pin is 3.3V, the middle pins are TX from SoC and ARM chip respectively, | The exchange between the ARM microcontroller and the RTL SoC can be snooped by connecting a logic analyzer to header J9. Square pin is 3.3V, the middle pins are TX from SoC and ARM chip respectively, | ||
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| === Soc UART === | === Soc UART === | ||
| - | * J3.1: VCC, 3.3V (square pad) | + | * J8.1: VCC, 3.3V (square pad) |
| - | * J3.2: TX | + | * J8.2: TX |
| - | * J3.3: RX | + | * J8.3: RX |
| - | * J4.4: GND | + | * J8.4: GND |
| === PoE UART === | === PoE UART === | ||
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| * [[https:// | * [[https:// | ||
| - | {{tag> | + | {{tag> |