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zyxel_xgs1250-12 [2021/11/12 12:30] – [Hardware] Fix link to RTL93xx hardware overview svanheule | zyxel_xgs1250-12 [2022/04/23 18:36] – [JTAG] Remove 'untested' note, works with otto.cfg svanheule | ||
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Power is supplied via a 12V 2A standard barrel connector. At the right side behind the grid is UART serial connector. | 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. | 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. | ||
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- | ==== Board details ==== | ||
{{wiki: | {{wiki: | ||
{{wiki: | {{wiki: | ||
{{wiki: | {{wiki: | ||
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+ | ==== JTAG ==== | ||
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+ | The board has an unpopulated eJTAG header J2. Similar to the [[GS1900-48]], | ||
+ | * Add jumper across R155 to connect the nSRST pin. | ||
+ | * Move R156 to R151 to change the permanent pull-down into a pull-up. | ||
+ | * (optional) Modify the heatsink and add a 2×7 pin header (see picture) | ||
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+ | The header' | ||
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+ | {{wiki: | ||
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+ | ==== Board details ==== | ||
< | < | ||
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* [[https:// | * [[https:// | ||
- | {{tag> | + | {{tag> |