Differences

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--- zyxel_xgs1250-12 [2022/04/18 15:23] – Add suspected eJTAG port mod details svanheule
+++ zyxel_xgs1250-12 [2022/04/30 19:32] – [Port numbers] Complete LED table svanheule
@@ Line 14: / Line 14: @@
 Power is supplied via a 12V 2A standard barrel connector. At the right side behind the grid is UART serial connector.
 A Serial header can be connected to from the outside of the switch trough the airvents with a standard 2.54mm header. Pins are from top to bottom Vcc(3.3V), TX, RX and GND. Serial connection is via 115200 baud, 8N1.
+{{wiki:zyxel:xgs1250-12-top.jpg?200}}
+{{wiki:zyxel:xgs1250-12-bottom.jpg?200}}
+{{wiki:zyxel:xgs1250-12-rtl8231.jpg?200}}
 ==== JTAG ====
-The board has an unpopulated eJTAG header. Similar to the [[GS1900-48]], nSRST and nTRST are configured such that the port is disabled. The following modifications should make use of the eJTAG port possible (untested):
+The board has an unpopulated eJTAG header J2. Similar to the [[GS1900-48]], nSRST and nTRST are configured such that the port is disabled. The following modifications make use of the eJTAG port possible:
   * Add jumper across R155 to connect the nSRST pin.
   * Move R156 to R151 to change the permanent pull-down into a pull-up.
-  * Add 2×7 pin header.
+  * (optional) Modify the heatsink and add a 2×7 pin header (see picture)
+The header's VIO pin is a voltage reference, tied to VCC via a 1k resistor (R153). This pin cannot be used to source current and is only provided as voltage reference.
-==== Board details ====
+{{wiki:zyxel:xgs1250-12-jtag-heatsink.jpg?400}}
-{{wiki:zyxel:xgs1250-12-top.jpg?200}}
+==== Port numbers ====
-{{wiki:zyxel:xgs1250-12-bottom.jpg?200}}
-{{wiki:zyxel:xgs1250-12-rtl8231.jpg?200}}
+The RTL9302 SoC supports 24 GbE ports, and four 10G ports.
+Device ports 1-8 are switch ports 0-7.
+Device ports 9-12 are switch port 24-27.
+^ Ports ^ LED index ^ LED comment ^
+| 1-8   | 0 | Amber component of anti-parallel amber/lime LED. LED0 must be off. |
+| 1-8   | 1 | Green component of anti-parallel amber/lime LED. LED1 must be off. |
+^ Ports ^ LED index ^ LED comment ^
+| 9-11  | 0 | Multi-LED selection. 0 chooses the lime/amber LEDs. 1 chooses the RGB LEDs. |
+| 9-11  | 1 | LED0 = 0: amber, LED0 = 1: red |
+| 9-11  | 2 | LED0 = 0: lime, LED0 = 1: green |
+| 9-11  | 3 | LED0 = 0: (none), LED0 = 1: blue |
+^ Ports ^ LED index ^ LED comment ^
+| 12    | 0 | Blue |
+| 12    | 1 | Lime |
+==== Board details ====
 <file>