2022-06-20 13:30:26 +02:00
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v1
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==
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this version comes as dongle, which can directly be plugged in the monitor.
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2022-06-21 11:08:53 +02:00
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the impedance and length of the differential signal pairs are properly taken care of.
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2022-06-20 13:30:26 +02:00
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a breakable tab replaces the WP switch.
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pads are still present to override the disabled WP and 5V.
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2022-06-21 11:08:53 +02:00
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the shield is not connected to ground, which causes EEPROM read errors with cheap HDMI cables skimping on the ground wire (pin 17).
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the workaround is to scratch the solder mask near one of the HDMI receptacle shell tab and solder it.
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2022-06-20 12:07:05 +02:00
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v0
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==
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first working version.
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based on the design of the original research.
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the HDMI connectors are on opposite sides of the board to make the routing easy (the differential signals are straight lines).
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the impedance does not seem to by optimal, leading to EMF leakage (reported by the original researchers).
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